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SEMEN TEST BULL BREEDING SOUNDNESS EXAMINATION B.B.S.E.
50 NORMAL, CYCLING, DISEASE FREE COWS 60% (In 3 weeks) and 90% (In 9 weeks) PREGNANT AT 42 DAYS FERTILE
COW BULL MULTIFACTORIAL
COW CYCLING Nutrition Days since calving Age of puberty DISEASE FREE Pestivirus Vibriosis Trichmoniasis Leptrospirosis ??????????? HEALTHY UTERINE TRACT Infection Scaring Cystic Ovary Freemartin
BULL SOUND SERVING ABILITY Mount Penile Erection and extension Intromission (seeking) Thrust DISEASE FREE Pestivirus Vibriosis Trichomoniasis ?????????? SPERMATOZOA Numbers Motility Morphology
COMPONENTS BULL BREEDING SOUNDNESS EXAMINATION 1. PHYSICAL EXAM 2. EXAMINATION OF REPRODUCTIVE TRACT 3. SCROTAL CIRCUMFERANCE 4. SEMEN COLLECTION AND EXAMINATION 5. SERVING ABILITY / CAPACITY
GENERAL HEALTH WALKING ABILITY NORMAL FEET NORMAL LEG STRUCTURE PHYSICAL EXAM
PENIS & PREPUCE SCROTUM & TESTICLES SEMINAL VESICLES REPRODUCTIVE TRACT
PENIS AND PREPUCE
SCROTUM & TESTICLES
TESTICULAR VOLUME OR WEIGHT DAILY SPERM PRODUCTION (Cells / gm) BIGGER NOT NECESSARILY BETTER BUT THERE IS A MINIMUM – Bos Taurus - Minimum 34 cm @ 2 yrs (2:1 L:W) – Bos Indicus - Minimum 30 cm @ 2 yrs (2.4:1 L:W) SCROTAL CIRCUMFERENCE
ARTIFICIAL VIRGINA (AV) SEMEN COLLECTION ELECTRO-EJACULATION (EJ) MASSAGE
GROSS MOTILITY (x100) - Score 1 to 5 (Concentration, % Motile & Velocity) PROGRESSIVE MOTILITY (x200)0 – 30% Fail 30 – 60% Multi-Sire > 60% Pass MORPHOLOGY (x1000)0 - 50% Fail 50 - 70% Qualified Pass (QF) > 70% Pass SEMEN EXAMINATION
SEMEN SCORE & MORPHOLOGY
SERVING ABILITY SERVING CAPACITY
1.KNOCKS OUT WORST BULLS 2.DOES NOT RANK BULLS 3.HIGH PROBABILITY OF BEING FERTILE - NOW 4.NOT A GUARANTEE, BUT A GOOD INDICATION OF POTENTIAL END RESULT
Do You Know Where Your Bull Is? Do You Know Your Bull’s Physical and Fertility Conditions? Do You Know the Importance of Breeding Soundness Evaluation?
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B115 Male Reproductive Anatomy & Physiology. Lesson Outline Male Reproductive Terms Male Reproduction Process Glands Semen Evaluation Abnormalities.
The Male Reproductive System. Structure and function Composed of both internal and external organs. Internal organs - store, nourish, and transport the.
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Breeding Methods By Walt Iciek Topic# Two Main Types of Breeding Artificial Insemination –Collected semen deposited directly in to females reproductive.
Dr. Matt Hersom Dept. of Animal Sciences. Bull Management General Thoughts on Management Nutritional Stages Feeding Examples.
The Male Reproductive System. Learning Goals Outline the male reproductive system and explain each part and its’ function. Explain the fertilization process.
Reproductive system. Human reproductive system –Produces, stores, nourishes and transports functional gametes Fertilization –Fusion of sperm and immature.
Unit C Basic principles of agriculture/horticulture science:
ANATOMY VOCABULARY What is it? What does it do? Is it a boy or a girl?
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P REPRODUCTIVE SYSTEM Objectives:
By: Valerie D. Blair and Dr. Frank Flanders Georgia Agricultural Education Curriculum Office April 2003 * Special thanks to Dr. Russ Page of Reproductive.
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Scrotal forms (bulls) Relaxed scrotums, testicles are relatively far from the body Scrotums with short neck, testicles are close to the body Oval formsRound.
27-1 The Male Reproductive System. Objectives: By the end of this session, students will be able to: Differentiate between primary and secondary sex organs.
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