Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
|
Young virgin bulls are purchased as replacements to reduce what diseases?
|
Vibrosis & Trichomoniasis
|
|
|
What should bulls test negative for when purchased?
|
Brucellosis & Tuberculosis
|
|
|
What vaccinations should be given?
|
IBR PI BVD BRSV -5 way lepto
|
|
|
What trait has highest heritability?
|
Carcass
|
|
|
Lowest heritability?
|
Reproduction
|
|
|
3 parts of breeding soundness exam?
|
Physical
Scrotal Circumference Semen Eval |
|
|
Criteria to pass breeding soundness exam?
|
No physical abnormalities
Scrotal circumference acceptable 70% morphology 30% motility |
|
|
Bull to Females ratio?
|
One female/ month of age bull
|
|
|
Scrotal Circumference Requirment
|
34 cm maternal
32 cm terminal By 12 months |
|
|
Semen Evaluation
|
2-10 ml per ejaculate
color contamination 70% morphology 30% motility |
|
|
Primary Abnormalities
|
production problems
|
|
|
Secondary abnormalities
|
Storage problems
|
|
|
# of bulls per pasture?
|
3 for 60-90 females
|
|
|
Nutrition mgmt
|
BCS 6
Should weigh 75% of mature weight by 2 Increase exercise Gradual feed switch |
|
|
Milk EPD
|
Calves out of bulls daughters will weigh 25lbs more @ weaning
|
