Archive for Natural Breeding

The Ultimate Guide to Breeding Dairy Cattle: Tips for Optimal Milk Production

Get expert tips on breeding dairy cattle to increase milk production. Want to improve your herd’s performance? Find out the secrets to successful dairy farming here.

In the dynamic world of agriculture, particularly in dairy farming, the importance of proper breeding procedures cannot be overstated. The art of breeding dairy cattle is about increasing milk output, herd health, and productivity and meeting the evolving global demand for dairy products. Farmers and breeders are at the forefront of this challenge, using their enhanced genetic knowledge and precise procedures to maximize their herds via selective breeding.

Proper breeding techniques offer numerous benefits, including: 

  • Increased milk production: Breeding for traits such as high milk yield and better milk composition ensures a consistent supply of quality dairy products.
  • Improved herd health: Selecting for disease resistance and overall robustness reduces veterinary costs and enhances the well-being of the cattle.
  • Genetic diversity: Maintaining a diverse genetic pool helps prevent inbreeding depression and promotes adaptability to changing environmental conditions.

 Efficient breeding strategies produce more productive cattle and translate to higher economic returns for dairy farmers. This financial aspect of breeding can empower farmers and motivate them to make strategic breeding decisions.” Practical breeding is the cornerstone of sustainable dairy farming; it creates a ripple effect that touches every aspect of production, from milk yield to herd health.”

Join us as we dig into the procedures and tactics involved in breeding dairy cattle, providing an overview for both experienced breeders and newbies.

Recognizing Distinctive Attributes: A Deep Dive into Dairy Cattle Breeds 

Understanding dairy cow breeds entails knowing their unique traits and how they affect milk production efficiency and quality. Notable breeds include Holstein, Jersey, Guernsey, and Ayrshire, each with its own set of benefits and concerns for dairy producers.

Holsteins, recognized for their stunning black and white markings, are dairy giants with remarkable production potential. A Holstein cow can produce roughly 25,000 pounds of milk annually, making it the ideal option for large-scale dairy farms. While their milk is large in volume, it usually has a lower butterfat percentage, which is essential depending on the final product specifications.

Jerseys, with their distinctive light brown coats and expressive eyes, are substantially smaller than Holsteins yet produce milk with much greater butterfat content. This characteristic makes Jersey milk especially desirable for butter and cheese manufacturing. Although they produce less milk overall (about 17,000 pounds per year), their efficiency in converting feed to high-quality milk is unparalleled, making them a prized breed for specialized dairy products.

Guernsey: This breed, recognized for its characteristic reddish-brown and white appearance, balances milk volume and quality. Guernseys produce milk high in butterfat and beta-carotene, which gives the milk its distinguishing golden color and other nutritional advantages. This breed is known for its gentle demeanor and simplicity of maintenance, with an average yearly milk output of 18,000 pounds.

With exquisite red and white markings, Ayrshire cattle are hardy and versatile, making them suitable for various agricultural settings. Their milk is noted for its butterfat and protein balance, which is ideal for dairy products. Ayrshires typically produce around 20,000 pounds of milk each year, and their robust constitution allows them to live in less-than-ideal circumstances, resulting in a steady and predictable milk supply.

Understanding these breed-specific features allows dairy producers to maximize their operations by choosing the best breed for their production objectives, environmental circumstances, and market needs. Each breed’s distinct characteristics help create a diversified and robust dairy sector that caters to a wide range of customer tastes and nutritional requirements.

The Role of Genetic Principles and Heredity in Dairy Cattle Breeding 

Understanding genetic concepts and heredity in dairy cattle is critical to establishing a successful dairy enterprise. Genetic factors influence milk output, illness resistance, and general health. Farmers may dramatically increase their herds’ production and lifespan by choosing appropriate genetic features.

The primary goal of genetic improvement in dairy cattle is to enhance qualities that directly influence milk output. This involves choosing animals with genetic solid potential regarding milk output, fat, and protein content. Modern genetic selection employs advanced methods like genomic testing, which enables the identification of desired features at a young age. This approach evaluates DNA markers connected to desirable features, allowing farmers to make more educated breeding selections and ensuring the future productivity of their herds.

In addition to milk production, other essential characteristics include udder health, fertility, and lifespan. Selecting these features ensures that the cows produce a large amount of milk while being healthy and productive throughout their lives. For example, cows with genetic resistance to common illnesses like mastitis have a superior overall health profile, requiring fewer medical treatments and lengthening their productive lives.

Selective breeding is carefully selecting sires and dams with desired genetic features. Artificial insemination (AI) is routinely employed, with top-performing bull sperm sent globally. These final extension packages contain roughly 2030 million spermatozoa at freezing, providing a diverse genetic background and the capacity to improve certain qualities across many herds.

The significance of choosing the appropriate genetic features cannot be emphasized enough. It results in increased milk output and improves the overall sustainability and efficiency of dairy farming. Investing in better genetics allows dairy producers to build a robust and prolific herd capable of addressing the demands of contemporary dairy production.

Strategic Selection: Ensuring Long-Term Herd Productivity and Health 

When choosing breeding stock, you must consider many essential elements to maintain your herd’s long-term production and health. The cornerstone of a thriving dairy company is the precise selection of bulls and cows, which considers many variables meant to boost milk output, improve disease resistance, and retain exceptional physical qualities.

First and foremost, the history of milk production must be considered. Cows and bulls from high-yielding genetic lines are likelier to pass on beneficial qualities to their progeny. Examine data that show the average milk output every lactation cycle, paying particular attention to any trends in peak milk flow. This information is critical for predicting the productive potential of future generations.

Comprehensive health records are equally vital. A strong healthcare history displays individual resilience and reveals a hereditary vulnerability to specific ailments. Prioritizing high immunity and low illness incidence breeding stock may cut veterinary expenditures and enhance herd health. These records require regular checks for common infections like mastitis and Johne’s disease.

Furthermore, physical qualities play an essential part in the choosing process. Assessing physical features includes more than looks; it also includes structural soundness, udder conformation, and bodily capacity, all of which contribute to an animal’s efficiency and lifespan. Bulls should have a muscular and well-proportioned build, which indicates high health and breeding potential. At the same time, cows should have well-attached udders and a strong frame for increased milk output.

By carefully considering these factors, dairy producers may make educated decisions to increase their herd’s genetic pool, leading to long-term production and health gains. This technique assures quick profits while promoting long-term success and resilience in the ever-changing dairy farming context.

Exploring Essential Breeding Methods: Balancing Genetic Control and Practicality 

Understanding the various breeding strategies available for dairy cattle is critical for increasing milk output and maintaining herd health. Natural breeding, artificial insemination (AI), and embryo transfer are some of the most often-used approaches.

Natural breeding is letting bulls mate with cows, which may be simple but does not control for specific genetic characteristics. Pros: This approach requires less effort and may provide a natural breeding environment, which benefits animal welfare. Cons: It gives issues in maintaining and choosing desirable features, often resulting in unanticipated genetic variability. The approach may promote disease transmission, reducing herd health and milk output.

Artificial insemination, on the other hand, provides more genetic control. Farmers may improve their herd genetics and milk output using semen from genetically better bulls. Pros: Artificial intelligence broadens the genetic pool, providing global access to better genes. Furthermore, it lowers the risk of disease transmission and may be timed to maximize conception rates. Cons: It takes specialized work and exact timing to be successful, and there are expenses involved with semen collection and storage. Nonetheless, the benefits of higher milk production and herd health exceed the downsides.

Embryo transfer (ET) is the apex of genetic selection; it allows producers to implant embryos from better cows into surrogate mothers. This strategy speeds up genetic development by rapidly generating several offspring from exceptional cows. It may also significantly boost the milk production potential of the herd. Cons: However, it is the most labor-intensive and costly procedure, requiring specialized equipment and veterinary knowledge. Furthermore, the early success rates may be lower than AI’s, making the process more difficult.

Optimizing Dairy Cattle Nutrition and Health Management for Maximum Milk Production 

Understanding the fundamental importance of nutrition and health management is critical for any cow breeder seeking to maximize milk output. Proper nutrition is more than just feeding the herd; it is also about providing a balanced diet that meets the cattle’s physiological demands while increasing productivity and general well-being. A complete nutrition plan includes high-quality forages, cereals, and nutrient-dense supplements. For example, a diet heavy in energy-rich feeds like corn silage and protein sources like alfalfa hay may significantly increase milk output.

Supplementation with vitamins and minerals is also necessary. Calcium, phosphorus, and magnesium are essential for bone health and metabolism. Furthermore, supplements like probiotics and yeast culture help increase digestion and nutrient absorption, enhancing general health and milk production.

Preventive health care is another essential component of efficient dairy cow management. A strict vaccination and deworming regimen helps avoid common infections, keeping cattle healthy and productive. Regular health check-ups and collaboration with a veterinarian may help detect and manage any health problems before they worsen.

Finally, consideration for cow comfort cannot be stressed. Comfortable housing with appropriate room, ventilation, and clean bedding considerably lowers stress and injury, which are required to sustain high milk production levels. Finally, a well-designed nutrition and health management strategy is essential for maintaining a flourishing, productive dairy cow herd.

The Critical Calving Phase: Ensuring Optimal Health and Productivity 

Calving is a critical period in dairy cattle breeding, requiring great attention and care to ensure the health and production of the cow and the newborn calf. The calving process may be erratic, lasting from a few hours to a day, necessitating close supervision. The calving environment should be clean, peaceful, and stress-free to facilitate delivery and reduce difficulties. Immediate post-calving care includes ensuring that the calf starts feeding as soon as possible to acquire colostrum, which is high in essential antibodies for immunological function.

Monitoring continues after calving, emphasizing the mother’s recovery and the calf’s early development. The cow’s diet is critical; feed should be nutrient-dense to promote lactation and restore the cow’s energy stores. Regular veterinarian check-ups are essential for detecting postpartum concerns like infections or metabolic abnormalities early on, which might otherwise restrict milk supply. The calf’s development trajectory, dietary demands, and immunization schedule must all be carefully monitored to ensure its good health and ultimate integration into the herd.

Establishing a solid health monitoring program, including frequent evaluations and prompt treatments, is critical. This proactive strategy increases individual animal welfare and production while ensuring the dairy operation’s sustainability and profitability. Finally, meticulous care and management throughout the calving and post-calving phases create the groundwork for consistent milk production and long-term herd success.

Meticulous Record-Keeping and Comprehensive Data Analysis: Pillars of Successful Dairy Cattle Breeding 

Practical dairy cow breeding requires meticulous record-keeping and detailed data analysis. Maintaining accurate records of breeding, health, and milk production is more than just a bureaucratic exercise; it is the foundation for a data-driven approach to herd management and performance optimization. By recording breeding histories, health occurrences, and milk output trends, dairy producers may trace ancestry, monitor genetic features, and quickly detect emergent health concerns, establishing the framework for targeted treatments and improvements.

Analyzing this plethora of data enables farmers to make more educated breeding choices, choosing cattle with better genetic features and firm health profiles. For example, analyzing trends in milk production data might indicate which cows regularly generate high yields, guiding future breeding decisions to amplify these desired features among the herd. Similarly, health data may reveal predispositions to particular illnesses, enabling susceptible lines to be excluded while strengthening genetic resistance to prevalent health concerns.

Furthermore, predictive analytics based on previous data may forecast future patterns and results, allowing proactive management tactics. Farmers, for example, may improve the health and productivity of their cows by examining the relationship between feed consumption and milk output post-calving. Thus, data analysis converts raw information into actionable insights, resulting in immediate benefits and long-term viability in dairy cow breeding.

Common Challenges in Breeding Dairy Cattle: Infertility, Diseases, and Genetic Disorders 

Breeding dairy cattle presents three significant challenges: infertility, illnesses, and genetic problems. A variety of factors may contribute to infertility, including poor diet, stress, and ineffective breeding schedule management. Diseases, including mastitis and bovine respiratory illness, endanger herd production and lifespan. Furthermore, genetic diseases may cause various difficulties, ranging from reduced milk production to increased susceptibility to sickness.

Maximizing cow welfare by providing a stress-free environment and enough nourishment is critical to treat infertility. Implementing a strategic breeding strategy that includes frequent health checks and appropriate veterinarian treatments may address many of these concerns. Utilizing advances in genetic principles, such as selective breeding and high-quality sperm, may help increase conception rates.

Disease prevention needs a diverse strategy. It is critical to ensure that dairy cattle get thorough care, including regular immunizations and timely treatment for any diseases. Maintaining a clean and pleasant living environment also lowers the likelihood of illness spread. Proper ventilation, frequent cleaning, and appropriate room per cow are all critical components of an efficient disease prevention plan.

To treat genetic problems, producers should maintain detailed records and do data analysis on their cattle’s genetic history and health. This technique helps to identify at-risk people and make educated breeding choices. Farmers may improve their herd’s health and production by prioritizing superior genetics and using genetic testing to prevent disease transmission.

Finally, although infertility, illnesses, and genetic abnormalities provide significant problems in dairy cow breeding, they are not insurmountable. Dairy producers may achieve long-term success and sustainability in their breeding programs by using strategic planning, modern genetic techniques, and a focus on health management.

Embracing the Future: The Impact of Genomic Selection and Precision Farming on Dairy Cattle Breeding 

As we look forward, sophisticated technology and cutting-edge approaches will transform the future of dairy cow breeding. One of the most promising developments is genomic selection. This method uses DNA markers to detect and select animals with better genetic features at an early stage. Breeders may use extensive genomic data to generate more precise forecasts about an animal’s potential for milk production, health, and general performance, expediting genetic improvement and enhancing breeding program efficiency.

Another transformational development is the rise of precision farming. This technology-driven method employs a variety of instruments and procedures, including sensors, automated feeders, and health monitoring devices. Precision farming allows farmers to precisely monitor and manage individual animals, customizing feed, healthcare, and breeding procedures to each cow’s unique requirements. This degree of customized care improves animal well-being while increasing milk output and quality.

Integrating these technologies into dairy cow breeding programs may result in considerable increases in production. Genomic selection ensures that only animals with the most significant genetic merit are produced, lowering the risk of hereditary disorders and enhancing overall herd quality. On the other hand, precision farming improves the daily management of the herd by ensuring that each cow gets the best possible care and nourishment. These advances promise to propel the dairy sector to unparalleled efficiency, sustainability, and profitability.

The Bottom Line

Finally, raising dairy cattle requires a thorough awareness of specific breed characteristics, genetic concepts, and strategic selection techniques to ensure the herd’s long-term production and health. Maximizing milk production involves the use of critical breeding approaches along with appropriate health and nutrition management. A focus on the critical calving period guarantees cattle health and production. Furthermore, thorough record-keeping and data analysis are essential components of a successful breeding program, emphasizing the need for continual review and modification.

A proactive strategy aided by genomic selection and precision agricultural technology is critical for addressing common difficulties, such as infertility, illnesses, and genetic abnormalities. This not only reduces hazards but also improves breeding results. As profit margins in the dairy sector remain small, improving efficiency via attentive management practices and successful marketing tactics is critical.

Integrating these approaches and insights into your dairy farming business may boost production and profitability. A dedication to breeding quality and a willingness to adapt and develop lay the path for a resilient and vibrant dairy industry. Implement the advice and tactics provided to guarantee the success and sustainability of your dairy cow breeding efforts.

Key Takeaways:

  • Recognizing distinctive attributes of different dairy cattle breeds is fundamental to optimize milk production and herd health.
  • Implementing genetic principles and understanding heredity can significantly enhance breeding success.
  • Strategic selection of cattle ensures long-term productivity, focusing on both performance and health.
  • Balancing genetic control with practical breeding methods is essential for sustainable dairy farming.
  • Optimizing nutrition and health management is critical to maximize milk yield and ensure cow welfare.
  • The calving phase is a critical period that requires meticulous care to maintain optimal health and productivity of dairy cows.
  • Comprehensive record-keeping and data analysis are pillars of successful breeding programs.
  • Addressing common challenges such as infertility, diseases, and genetic disorders is vital for maintaining herd viability.
  • Embracing genomic selection and precision farming technologies can revolutionize dairy cattle breeding, improving both efficiency and outcomes.
  • Overall, a multi-faceted approach integrating traditional practices with modern advancements is key to successful dairy cattle breeding.

Summary:

Dairy farming relies on precise breeding procedures to increase milk output, herd health, and productivity. Understanding dairy cow breeds is crucial for establishing a successful enterprise, as genetic factors influence milk output, illness resistance, and general health. Modern genetic selection methods, such as genomic testing, selective breeding, and artificial insemination (AI), help dairy producers build a robust and prolific herd. Strategic selection is essential for maintaining long-term herd productivity and health, considering factors like milk production history, health records, physical qualities, and breeding methods. Essential breeding methods include natural breeding, AI, and embryo transfer. Nutrition and health management are crucial for maximum milk production, including high-quality forages, cereals, and nutrient-dense supplements. Preventive health care, including vaccinations, deworming, regular check-ups, and collaboration with veterinarians, is also essential. Cow comfort is also vital, as it lowers stress and injury required for high milk production levels.

Learn more:

The End of the Daughter Proven Sire Era

For almost sixty years dairy cattle breeders have relied on daughter proven sires to drive the industry forward. There was a time when over 70% of the genetic advancement depended on knowing which sires left the best daughters and using them extensively. However that era is fast coming to a close. The Bullvine sees changes in the not too distant future for both breeders and breeding companies, all of whom have built their business and breeding models around the daughter proven sire.

A Quick Look at History

Before the 1950’s unproven sires were the norm. Yes some of them may have had some limited daughter information but it was most often in a single herd and was actually just phenotypic observations (i.e. 12,500 lbs milk, 3.8%F, 5 VG & 10 GP daughters). A.I. was primarily a tool to get cows in calf without having to feed and handle a mature bull. Truth is that genetic progress, at that time, was only slightly above zero.  From the 1970’s onwards considerable progress was made, based on the use of proven sires. During that time breeders and breeding companies were more selective in which young sires were sampled, more herds were milk recorded and type classified, genetic evaluations used B.L.U.P. technologies (i.e. +1100 lbs milk, +0.25%F, PTAT +2.24) and high ranking total merit proven sires got extensive use.

New Technologies Will Turn the Tide

Now let’s deal with how new technologies will change the timing and accuracy of genetic decision making. Simply put ‘time waits for no one’ and ‘the future is in the hands of those that search out the new, decide and apply the best of the new”. That applies to all areas of dairy farming but just now let’s stick to the genetic component. Let’s focus on why daughter proven sires will become a thing of the past

Accurate and More Accurate

To date genomic genetic evaluation has resulted in a doubling of the accuracy of indexes for young animals. It will not stop there. With refined knowledge in the genome we can expect production indexes on young animals to go from 65-70% REL. to as high as 85-90%. in the next five years. As well with more on-farm data being captured and collected in Genetic Evaluation Centers we can expect the REL for productive life, type, health and fertility traits to approach 70-80%. Part of the increase in REL, from their current 50-65%, will come from more accurate field data and part from in-depth study of the genome. The end result will be that if total merit is known with 85% REL for young animals, then daughter proven bulls and older brood cows will not be used as the parents of the next generation. In short the pace of the trend of using younger and younger animals as the parents of the next generation will speed up even more.

Sexing Technology

Dairy cattle breeders are hearing that genomics is the biggest advancement in genetic improvement since the introduction of the proven sire.  Recent information on what’s ahead in sexing technology is on the brink of speeding up the rate of genetic gain. (Read more: Sexed Semen from Cool Technology to Smart Business Decision and SEXED SEMEN – At Your Service!) That does not even factor in epigenomics and nutrigenomics will hold out significant promise. (Read more: Forget Genomics – Epigenomics & Nutrigenomics are the Future) Proactive breeders will need to stay tuned to what’s ahead and be ready to adapt the breeding plans. (Read more: What’s the Plan?)

We know that young bulls do not produce large volumes of sperm per ejaculation as mature bulls do, so we’ll need to collect from extra young bulls but there will come a day when all young bull semen will be sexed. Having more young bulls being used will help to counteract inbreeding.

The changes could well go much further than that.  How much sexed semen will be needed in another fifteen years?  It could be that embryo and embryo transfer technology will advance to the stage that, once identified, the very top genetic ten to twelve month old heifers will have many oocytes collected and fertilized in vitro and then implanted into 99% of the females on a farm.

Of course exactly what will happen has yet to play out but we need to be prepared for major advances in the technologies relative to both genetics and reproduction. Regardless the use of daughter proven sires will be a thing of the past.

Maximum of 50,000 Doses Only

In the past superior proven bulls have remained active and in use well past ten years of age. They have produced, on average, 130,000 – 140,000 doses per year. In some cases they have sold more than one million doses of semen in their lifetime. Although profitable for their owners this extensive use has contributed to inbreeding and narrowing of the genetic base. The question that has always been asked ‘what do we do about too much Blackstar, Valiant or more recently Oman and Planet?’. We will not need to have that concern in the future as genetic progress will be so quick that the maximum a sire will get used in his lifetime is 50,000 doses. That does however change the value that any one sire will have. The industry savings on feed and maintenance costs beyond collecting 50,000, likely sexed, doses is significant considering the thousands of bulls that have been annually sampled around the world in the past.

It could be that 50,000 is far too high a number of doses. Take the case of Kulp-Dale Golden PP Red.  (Read more: $10,000 a dose Polled Semen and The 24 Polled Bulls Every Breeder Should Be Using To Accelerate the Genetic Gain in Their Herd) Five doses and $50,000 may be the numbers that will be attached to his contribution to changing the Holstein breed from horned to polled. Another factor to think about is that high genomically evaluated young sires are often used exclusively by breeding companies before general release and, when released, are priced at $200 to $1000 per dose. However after a few months their semen price is dropped to the $40 – $60 range. By the time they have been on the market for a year they are often down to less than $20. Why? Because their time of demand has passed. If the sire is no longer a list topper for at least one important trait he is history.

Alternatives Exist

A couple of months ago The Bullvine wrote about using all natural sires in a herd. (Read more: Natural Breeding – Could It Work For You?) These sires can quite easily have high genomic indexes. Think about it. A breeder focused on producing milk saving on labor to heat detect and inseminate his cows and heifers. Perhaps 10% of a herd’s labor cost could be saved. With robotic technology advancing quickly it could well be that the safety factor for workers by having yearling and two year old bulls around the farm may be minimized as there will be fewer workers to be exposed to the bulls. Definitely the need for daughter proven A.I. sires would be zero.

Are We Ready?

The pace of change is fast and will become faster. In a few years it could be that the only need for daughter proven sire information will be to check the accuracy of genomic indexes or to develop the formulae for indexing for new traits that breeders wish to include in their breeding programs. It could well be that breeders are more ready for the future than are some breeding co-ops and companies that have built their business model on having the vast majority of their revenue coming from daughter proven bulls. Having said that, progressive breeding companies are taking steps to control their costs and to specialize their product lines, including owning high ranking females. Daughter proven bulls will not be the focal point for those companies.

The Bullvine Bottom Line

Having moved to daughter proven sires for accuracy and selection intensity reasons, we can now expect to see a move away from those sires for the reasons of speed of turning of generations and of having very accurate knowledge at the gene level. Anyone doubting these changes needs only to look at male selection in the plant, fish, poultry and pig industries. The downside for bull breeders is that their bulls will have less value. The upside for all other breeders is that they can continue to make rapid progress in breeding profitable healthy cows. Daughter proven sires were a major force in getting us to where we are but they will now be replaced by more advanced technology.

 

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Natural Breeding – Could It Work For You?

The Bullvine has received the following question from readers – “Why does The Bullvine always talk about using AI and never refer to or talk about using natural sires?” After doing some research on natural use bulls, we decided to share our findings in story format.  We often list statistics and science, but we would like to present something closer to real life in order that other, like minded, producers can evaluate a possible scenario and consider it for their own operations.

Here’s The Scenario

“A couple runs, as they call it, a milk production factory of 400 (2x) milking cows. They have found that, for best results, they should have their four key (human) employees putting their focus on cow care. That means focusing on the close-up and fresh pens, feed mixing, caring for calves that are less than a month old and attending to cows that are sick. The remainder of their staff are mostly part-time and involved in milking, pushing up feed, moving animals, bedding, cleaning up and manure handling. The husband manages the operation and the wife manages the records when they are not skiing or spending time with their family of five very active high school and college students. A few years back they were having trouble catching cows in heat and the fallout from that was that they had too many late lactation cows, had too much non-producing time spent in dry pens and there were heifers calving over conditioned at 27.5 months of age. This meant not enough profit or ROI.  Their milking cow pregnancy rate was 9%, 4.1 pounds of fat plus protein were being shipped per cow per day and the cull rate was 40%. They needed to keep every heifer calf born on the farm for herd replacements. They knew drastic action was needed. So they went to focusing their attention on the most problematic areas and on using natural bulls for breeding both the heifers and the cows.

(CHECK THIS) The husband clearly understood that the system of using herd bulls instead of A.I., is not for every dairy farm, especially not for herds that do not have facilities that are bull strong, bull safe and where only one person is involved when groups are being moved or worked with in their pens.

How to Hire a Working Bull

For several years in the representative scenario, prior to the change to natural bulls, they had used 50% young sire semen. The main selection criteria had been NM$ (>$500) with the added requirement of +1.0 for both UDC and FLC. They wanted a blend price for semen of less than $20. The cattle were registered in the national herdbook so the DHI records could be used in sire proving. Numerous different staff were trained in A.I. but the results were just not there, even though they routinely used an off-sync program. Heat detection and breeding was a drag and it sapped energy from everyone.

The change to natural bulls occurred after the introduction of genomic indexes to the dairy industry. They found there were many high quality genomically tested bulls, that did not make it into A.I., that were available at a reasonable price. They have required that the young bulls, generally purchased at 9-12 months of age, are above average for size and have good feet and legs but cow families have not been considered when purchasing. They are now milking daughters of their first genomically tested bulls and find that they are, on average, quite superior to what their young sire daughters were in the past.

Their current requirements for their bulls are: NM$ >$650; FLC >+1.5; UDC >+1.5; and SCS < 2.90. But from here on they will also be requiring a positive number for DPR and >3.0 for PL.  Additionally under consideration are ways to avoid inbreeding, increasing protein percent, using only polled bulls and, if they could get it, some way of knowing the growth rate and body condition score. Definitely sons of sharp chinned, deep ribbed show cows are avoided. The reason for a higher protein percent is because the milk is shipped to a local specialty cheese factory which pays an incentive for protein content.

Cow Performance under Natural Breeding Scenario

The time formerly spent checking for and breeding cows and heifers in heat is now focused on close-up, calving and just fresh pens. These groups are housed close to the milking parlour and can be easily seen from the staff room and the office. All staff are encouraged to watch and make sure cows in these pens are getting up and eating. Temperatures are taken and recorded, twice a day, for the first three days after calving and before moving into the voluntary waiting pens. There are no bulls in these pens so staff can safely check a cow at any time.

Improvements obtained were in the magnitude of

  • average production 5.3 pounds of fat + protein per cow per day,
  • cow pregnancy rate from 22-24%,
  • cow cull rate 25% and
  • heifers calving at 22-23 months of age

Cows are grouped by staged of lactation or pregnancy. First calf heifers are housed separate from mature cows in close-up, voluntary waiting and breeding stages. Maximum group size, when cows are 150 – 300 days in milk, is 80 cows. Parlour size accommodates twenty and they like cows back to their pen within one hour.  Breeding pens are kept to 40 cows so that only one bull is needed per pen. Herd management software data is used and the movement of cows and bulls in and out of pens is recorded. All cows seen to be in standing heat are recorded but less than 50% of the actual heats are observed by staff. A milk weight is taken every Wednesday morning. Fresh cows are continually added to the fresh pens and stay there 3- 10 days. Otherwise any movement between pens takes place on Thursday after the morning milking. One staff member monitors on Thursdays for any bullying or fighting. The plan is to purchase ultrasound equipment and have two people trained to use it for pregnancy checking.

The Beef Enterprise Revenue Stream

An expanded version of the scenario sees the wife’s family owning and operating a small slaughter and retail beef business, specializing in marketing and selling lean beef that guarantees to its customers that all animals can be traced and for which there are no drug residues.

The dairy farm supplies animals to that beef processing business. As a result all calves are raised on the farm. Males calves are castrated and marketed when 1400 pounds. Heifers with poor feet and legs or not in calf by 14 months are finished for beef. Only about 60% of the heifers are raised for dairy purposes, as it costs more to raise them than they being when sold as a springing heifer or fresh first lactation cow. Young (<50 months) cows that have problem udders or feet and legs or that are not in calf are also marketed through that business. Settlement for their animals is on a weight and rail grade basis. All other animals are sold through an auction mart.

Where the beef side of the farm was once only a by-product, it now forms a significant revenue stream. It has meant that they want Holstein bulls that produce progeny that carry more condition and, therefore, go to slaughter at a relatively young age.

Other Specifics

Most details about the operation are unchanged when the farm converted to using natural bulls.  Bulls upon arrival are kept in isolation at a neighbor’s small barn that they rent. Bulls must be negative for TB, Brucellosis, Anaplasmosis and Johnes. Bulls not in use are housed in individual pens. As mentioned previously any pens with a bull in it must have two people present for movement or entry into the pen. Bulls slipping and injuring themselves during mounting has not been a problem. If and when herd expansion occurs, they are planning to use manure pack barns for the breeding pens. The bulls travel with their pen to, through and back from the milking parlour.

The farm in this scenario definitely benefits financially from less labour spent heat checking and breeding, from a younger age at first calving, from fewer days in the dry pens, and from more production per day. It must be stressed that, without genomics and 65% accuracy for the major indexes, they would not have been able to achieve the high percentage of high quality animals. All changes combined have helped them double their annual net returns from the milk sales side of their business.  This scenario strongly recommends not attempting natural breeding with bulls that only have a parent average index or much worse still have no known parental information.

Although this is a composite scenario, farmers moving to natural sires can expect to find that bull buying and maintenance expenses were balanced by  previous expenses for semen, labor for heat checking and breeding, vet checks and drugs. The higher production per day and the fewer non-productive days for both heifers and cows (without an increase in labor costs) are the profit makers.”

The Bullvine Bottom Line

The Bullvine thanks our readers who have drawn our attention to this area of dairy operation management. Using natural bulls instead of A.I. is not for every dairy farm. Definitely it does not assist with sire proving by A.I. companies. However, it can allow for labor to be focused away from reproduction and more on that critical 2-3 weeks before calving and 3-4 weeks after calving.  The Bottom Line? If designed and operated properly natural sire use can return a greater net profit and that’s a scenario we can all relate to!

 

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