Bull Breeding Soundness Exams Flashcards
What is the goal of BSE
Estimate the potential fertility and breeding capacity
What are important things to check for in basic PE for BSE
- Lameness
- Visual
What do you evaluate for sperm under microscope
- Motility
- Morphology
Where do primary defects occur
Intratesticular phase of spermatogenesis
What defects are seen with primary defects
Defects of head, acrosome, midpiece, proximal droplets and coiled tails
Where do the secondary defects arise from
Storage and transport through epididymis
What defects are associated with secondary defects
Distal droplet, bent tail, detached head, distal midpiece reflex
Where do tertiary defects arise
After ejaculation
What can cause tertiary defects
osmotic or cold shock, urine contamination, aggressive handling can induce detached heads
Normal or abnormal
normal
Normal or abnormal
tapered and pyriform heads
what wrong
Double mid-piece, abaxial attachment
What wrong
proximal droplet
What wrong
stump tail defect
What wrong
distal droplet
what wrong
Distal midpiece reflex
What wrong
knobbed acrosome
What wrong
Bent tail
What wrong
coiled tails
What wrong
Detached head
What are the minimum requirements for bull to pass BSE
- Scrotal circumference minimum of 34cm by 2yrs
- Progressive motility minimum 30%
- Morphology: >70% normal
- No observed defects in reproductive anatomy
What are BSE requirements for sheep
- Progressive motility: 30%
- Morphology: 70% normal
- Scrotal circumference: 34cm by 18 months
- B. Ovis negative
What are the BSE requirements for goats
- Progressive motility 30%
- Morphology: 80% normal
- Dairy breeds scrotal circumference >28cm