Bull reproductive anatomy & BSE

Question 1

Fertile bulls

Answer 1

Bull that can impregant by natural sevice at least 60-90% of 50 normal, cycling, diease frre females within 3 and 9 weeks

Question 2

sub fertile bulls

Answer 2

can a achieves pregnancies by natural service, but not at the rate achoved by fertile bulls when oppurtunity exists. Bulls that cannot achieve pregnancies by natural service but can produce viable semen for artificial breeding, are also sub-fertile

Question 3

infertile

Answer 3

cannot achieve pregnancies

Question 4

A full BSE includes recording the identification, history (inluding vac) plus 5 keys components - what are the 5 key components

Answer 4

Physical - A general physical exam, including conformation and Upper repro tract
Scrotal - examination of testes and measurements of scrotal size
Semen - collection and assessment of a semen sample
Servicing (not usually done) - a serving assessment to evaluate libido and mating
morphology: laboratory examination of sperm morphology

Question 5

What components make up a physical exam on a bull

Answer 5

BCS
Gait
Eyes
Conformation e.g legs, joints, head, length of prepuce
penis - normal visualised, normal palpation, or abnormal

Question 6

What are the 4 possible results that can be achieved from a BSE exam

Answer 6

Tick - all attributes for this compenenst were consistent with ACV standards
Q- Not all attributes for this component were met - abnormalities may not necessarily preclude the bulls use
X - some attributes were not met - the bulls has a significant risk of reduced fertility in the short term at least. Because some conditions may be temporary, the client should seek advice from the cattle vet
NT - not tested

Question 7

Minimum scrotal circumference threshold requirements depend on

Answer 7

Breed
Body weight (better guide than age)
Age