SEMEN TEST BULL BREEDING SOUNDNESS EXAMINATION B.B.S.E.

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Presentation transcript:

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 2 yrs (2:1 L:W) – Bos Indicus - Minimum 30 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 % 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

THANK YOU

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