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Thursday, April 16, 2020 | History

2 edition of Breeding soundness of bulls found in the catalog.

Breeding soundness of bulls

J. D. Mankin

Breeding soundness of bulls

  • 318 Want to read
  • 2 Currently reading

Published by Oregon State University Extension Service in Corvallis, Or .
Written in English

    Subjects:
  • Bulls -- Breeding.,
  • Bulls -- Genetics.

  • Edition Notes

    StatementJ.D. Mankin, Lionel Ickes.
    SeriesEC / Oregon State University Extension Service -- 1067., Extension circular (Oregon State University. Extension Service) -- 1067.
    ContributionsIckes, Lionel., Oregon State University. Extension Service.
    The Physical Object
    Pagination[2] p. ;
    ID Numbers
    Open LibraryOL16099936M

    The importance of a breeding soundness exam in herd bulls can prevent costly revenue losses, according to a Texas A&M AgriLife Extension Service economist.


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Breeding soundness of bulls by J. D. Mankin Download PDF EPUB FB2

About the Manual. Click here to view the Table of Contents. The 3rd Edition of the Bull Breeding Soundness Manual, written by Dr. Albert D. Barth, is now available through the WCABP with previous editions, members of the bovine practitioners associations from each region of Canada reviewed the manual prior to publication.

Breeding soundness exams are a vital way to ensure bulls will be fertile and physically sound. A breeding soundness exam should be performed yearly by a veterinarian before turnout advises Jennifer Koziol, veterinarian and assistant professor at Purdue University. Bull Breeding Soundness The Breeding Soundness Evaluation (BSE) is a relatively quick and economic procedure for screening bulls prior to sale or use.

Its objective is to establish a baseline, above which bulls could be regarded as satisf actory potential breeders. As it is intended forFile Size: KB.

Bulls presented for breeding soundness evaluation were assessed using all three techniques. The findings of each technique were compared. There was agreement in classification of fertile bulls using all three techniques, suggesting that the combined use of these techniques enhances routine breeding soundness by: Breeding soundness examination of bulls [Randall S Ott] on *FREE* shipping on qualifying : Randall S Ott.

Breeding soundness exams include examination of the bulls’ physical structure, reproductive organs and semen. “The physical examination is important because bulls with proper structure are more likely to hold up during the rigors of breeding season, compared with bulls with structural problems,” says Lisa Pederson, NDSU Extension beef.

For this reason the evaluation of breeding soundness of bulls prior to use is recognised as an integral part of sound herd management in many countries. A cost-benefit analysis of breeding soundness evaluation suggested a direct, short-term financial benefit to be gained by Cited by: Published by: VetLearn Foundation ISBN: Evaluation of Bulls for Breeding Soundness is an invaluable resource for all cattle veterinarians involved in reproductive management of dairy, beef, and particularly bull-breeding herds.

Introduction. Bull breeding soundness evaluations (BSEs) are an important economic component of beef herd management (1,2,3,4,5,6).Breeding soundness depends on adequate semen quality, physical soundness, and serving capacity ().The prevalence of bulls considered unfit for use in breeding programs has been investigated in several studies involving large numbers of bulls (8,9,10).Cited by:   While it is true that very few bulls are in fact completely sterile, the incidence of subfertility can be 20–40% in groups of bulls.

3 Thus the goal of a BBSE is to identify subfertile bulls so that they may be removed from the breeding population. Therefore major emphasis must be placed on physical attributes that affect a bull’s ability.

The evolution of the bull breeding soundness examination (BBSE) that is currently in use is a testimony to the foresight and persistence of a group of veterinarians and animal scientists who identified a problem, specifically subfertility in bulls, and worked to continually improve the metrics that could be used to validate the fertility or subfertility of a : Richard M.

Hopper. Breeding soundness of stud bulls. The English language book Society and Balliere Tindal l, Holstein Friesian crossbred breeding bulls with highest libido provided significantly (p. Breeding bulls were determined to be breeding sound prior to the breeding season as described by Irons et al.

Facilities on the farms did not allow heifers to have access to feed while in. Examination of Bulls for Breeding Soundness An Illustrated Guide. 06 June Type Book The aim of this guide is to provide an illustrated framework to assist practitioners when carrying out breeding soundness examinations.

The guide is set out in sections corresponding to the British Cattle Veterinary Association Bull Pre-Breeding Examination. It is imperative for any bull to have passed a breeding soundness evaluation that checks his physical soundness, scrotal circumference measurement, and semen quality within thirty days of purchase.

Once you determine breed and age, select bulls by using four tools: phenotype, pedigree, expected progeny differences (EPDs), and individual. these are good indicators, but some bulls of high weight and with a large scrotal circumference will still have poor quality semen.

Other bulls may produce semen that is of poor quality even after they reach maturity. A change in the scoring system used for breeding soundness examinations has. Examination of Bulls for Breeding Soundness Overview The stock bull has been often neglected as a potential contributor to beef and dairy herd infertility.

To maximise herd fertility efficiency it is critical that infertile and sub-fertile bulls are identified. Pre-breeding examination. Breeding soundness examination of the male llama and alpaca has become more formalized and better received by clients in recent years because of continuing education programs informing them of the importance and as more literature has documented reproductive pathology and infertility issues.

The breeding soundness examination should be performed in a stepwise fashion, making sure to include. A full BBSE before breeding season ensures you go into breeding season with the best chance of having all of your cows bred for next calving season.

Call us today at () to discuss bull breeding soundness and to book your bulls in!/5(29). Quality evaluation of semen is one of the most important steps to detect the breeding soundness of bulls which determines bulls‟ health, physical and reproductive soundness.

A bull requires the following criteria to be fertile: physical soundness, good libido, and good quality semen [2]. Sub-fertility in bull‟s delays pregnancy, prolongs.

Bull breeding soundness evaluation (BBSE) is a routine procedure in many countries but has only recently been undertaken in the United Kingdom (UK). The collection of semen by electro-ejaculation allows BBSE to be carried out in the field in a quick and safe manner.

As more bulls are now being examined in the UK there is the need for a standard BBSE certificate to be developed. Complete EPDs on each bull. All bulls are current on vaccination, have been tested for BVD-Pi and are NH, AM and CA free.

Bulls are certified virgin or will be certified Trichomoniasis free and have passed a breeding soundness evaluation. Perform breeding soundness evaluation; Bull Management Procedures. Other steps you should take to prepare bulls for breeding include: Do not overfeed bulls.

You want bulls to gain weight without gaining fat. Run two or more bulls together or with a few pregnant cows; Calving Schedule. An annual breeding soundness exam (BSE) should be conducted on all breeding-age bulls about six to eight weeks before the start of breeding.

Do not use bulls that fail a BSE. Avoid bulls with small scrotal circumferences and extremely pendulous sheaths. Have bulls tested at least once for their fertility associated antigen (FAA) profile. Another Michigan research study has estimated a high level of infection in beef bulls with 25 percent of bulls that were examined for breeding soundness testing positive for BLV.

breeding soundness exam used to identify potentially satisfactory breeders. Bulls in greater body condition have a larger scrotal circumference than thinner bulls (Table 6). Fat in the scrotum can negatively affect semen quality.

Semen quality is reduced for bulls in a File Size: 5MB. The veterinary certificate of bull breeding soundness and explanatory notes and minimum standards are shown.

The first component of the certificate is a declaration by the veterinarian that the bull complies with the minimum standards set for examinations for the selected purpose, these being for use as a natural service sire, as a donor of.

Breeding soundness examinations are an important tool to provide information that will help evaluate the fertility of bulls before the breeding season begins.

Show comments About the author. Tip #5: Do a Breeding Soundness Exam. A breeding soundness exam should be done days before breeding season starts. Your local vet should be able to administer this test.

They will check for things like the soundness of his legs and even his fertility. Evaluating bulls with a breeding soundness exam is often one of the most neglected. Bovine Reproduction is a comprehensive, current reference providing information on all aspects of reproduction in the bull and cow.

Offering fundamental knowledge on evaluating and restoring fertility in the bovine patient, the book also places information in the context of herd health where appropriate for a truly global view of bovine theriogenology. Bull Breeding Soundness Veterinary CPD Course On many farms the stock bull is often presumed to be fertile.

However, experience shows that a significant number of bulls are sub/infertile which is costing your clients time and money. Aspects of. Bull Breeding Soundness Examination A fertile bull should be able to serve 50 disease free, cycling cows and get 95% of them in calf in 9 weeks. Sterile bulls (which are completely incapable of getting cows in calf) are very rare, but between 20% and 30% of bulls may be sub-fertile.

Bull breeding soundness evaluation in Southern Africa 24 bulls of questionable breeding potential(2). Bulls which are unsatisfactory could be completely infertile with total loss of the potential calf crop in the single-sire situation. Examples of conditions which cause infertility and which are easily.

information in the sale book. Volume Bull Discount 5 bulls 5% - 6 bulls 6% - Up to 10 bulls at 10% First Breeding Season Guarantee: We offer a full breeding season guarantee for any injury that would keep the bull from being a breeder for the first breeding season. If a problem occurs, we will give you a suitable.

An illustrated lecture on examination of bulls for breeding soundness. Illustrated course book provided. Benefits & Objectives Learn the skills required to carry out practical bull breeding soundness examinations and launch this service into your practice. 28th Apr - 28th Apr Because reproductive performance is an important economic trait in the cow herd, the reproductive capabilities of breeding bulls assume great importance.

The best assurance that a bull is likely to be fertile is a successful breeding soundness evaluation (see Breeding Soundness Examination of the Male). A rule of thumb for bulls is that they.

The reproductive tracts of bulls should be thoroughly examined at breeding soundness examinations prior to every breeding season, visually every week out on pasture during breeding season and.

Breeding soundness exams can help prevent financial losses for ranchers, according to AgriLife Today. Late fall and early winter is the best time to do breeding soundness exams on bulls if you have a spring calving season, according to Dr.

Bob Judd, host of Texas Vet News on the Texas Farm Bureau (TFB)Radio Network. He says exams should be performed each year on every bull in the herd. bulls and identify a bull that will meet your breeding objectives.

examine the bulls ‘on offer’ Review bulls in the paddock, at the auction or sale. Check the bulls that you have selected for structural your final decision based on the sum of all.

An important part of any breeding soundness exam is an evaluation of sperm morphology. In the most fundamental case, the size and shape of the head, midpiece and tail are examined.

Additional information can be gained by evaluating integrity of the acrosome and sperm membranes. Sperm from different species vary in size and shape. The present study analyzed the relationship between testicular biometry and initial semen quality in Karan Fries (KF) crossbred bulls. Data on semen production traits of KF bulls (n=32) spread over a period of 3 years were analyzed to find out the ejaculate rejection rate (ERR).

The scrotal circumference (SC), testicular length (TL) and testicular width (TW) were measured once in a month and 16 Cited by: 4.The Society for Theriogenology is an organization of veterinarians dedicated to animal reproduction, whose mission is to promote standards of excellence in reproductive medicine, to provide outreach and education to veterinarians, and to foster continual improvements in theriogenology.One of the most cost efficient methods of a successful breeding program is the breeding soundness exam conducted on bulls.

Bulls are responsible for breeding 20 to 50 cows each.