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Test your basic knowledge |
Dairy Cattle And Reproduction
Start Test
Study First
Subjects
:
industries
,
dairy
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Days which have decreasing daylight hours
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2. 147 days
seasonally polyestrous
Mares
colostrum
ewe gestation
3. What helps regulate spermatogenesis?
Sperm survival specs
prostaglandin
Lutinizing Hormone in females
testosterone
4. Way to know everything is alright with the breeding male
behavioral signs of estrus
purpose of Breeding Soundness Exam (BSE) for males
sertoli cells
butterfat
5. Not under a timeline - cow can not be sold as steak
prostate gland
Grading choice
ewe estrus cycle
Follical Stimulating in females
6. % of fat in milk. makes cheeses and ice cream. regulates cost of milk
vulva
Mares
butterfat
testis (gonads)
7. Milk ~305 days - dry 60 days prior to calving
Mares
Follical Stimulating in females
Dairy Cattle milking schedule
cow ovulation
8. 1. reproduction - 2. mastitis/udder problems - 3. low milk production - 4. soundness/poor feet and legs (living on concrete)
what has to happen for males for copulation to occur
uterus
vulva
4 major reasons for culling dairy cows
9. Can produce 200 calves naturally (~100 bulls) - top 1-2% will grade like him. everything left to chance if no AI performed
sertoli cells
Avg. bull specs
Size of cow in relation to the amount of milk produced
urethra
10. 10-37 (21) days
ewe gestation
purpose of Breeding Soundness Exam (BSE) for males
Testicles will produce testosterone but not sperm. Bull will attempt to mate - but will be sterile
mare estrus cycle
11. 26 hours after estrus begins
cryptorchid
cow gestation
ewe ovulation
#1 cost in production
12. Cleans and lubricates the urethra. secretion is thick - viscous - and very slippery.
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13. 265-285 days
Dairy calves are removed from cow at birth to...
Dairy Cattle Gestation
dry-off time in dairy cattle
Bull's fibro-elastic penis
14. Sperm production
4 major reasons for culling dairy cows
Where livelihood is in agriculture
spermatogenesis
colostrum
15. Important 'landmark' during palpation
semen evaluation (BSE)
cervix
Sperm survival specs
butterfat
16. (LH) causes female's egg to break (her period)
Lutinizing Hormone in females
penis and prepuce observation (BSE)
6-8 weeks
sow gestation
17. What helps regulate spermatogenesis?
testosterone
visual evaluation (BSE)
leydid or interstitial cells
reason for seasonal breeding periods
18. 24 hours before end of estrus cycle
accessory sex glands
elastrator
mare ovulation
stag
19. (LH) causes female's egg to break (her period)
vulva
epididymis: definition - 3 parts - 4 functions
leydid or interstitial cells
Lutinizing Hormone in females
20. 1. to eliminate breeding the females at an early age - 2. makes animals less lean and provides a better cut for the market
reasons for castration
urethra
dry-off time in dairy cattle
rectal palpation (BSE)
21. Contains and regulates the temp of the testes for sperm production
organs used in spermatogenesis
scrotum
~1 month
epididymis: definition - 3 parts - 4 functions
22. 147 days
castration
ewe gestation
1. more cost effective - 2. powdered milk is in excess production
cow estrus
23. 336 days
humans: stress level vs sperm
6-8 weeks
sow estrus cycle
mare gestation
24. FEED
femininity of a heifer
Follical Stimulating in males
6-8 weeks
#1 cost in production
25. Standing to be mounted (last one able to notice); mounting other animals; social behavior-restless - gregarious - activity - vocalizing; frequent urination; mucous discharge
sow gestation
growth lost from castration methods (knife & band)
retractor muscles
behavioral signs of estrus
26. Look for infection - split - and rupture of the penis
libido test (BSE)
functions of progestrone
penis and prepuce observation (BSE)
burdizzo
27. Check feet and legs - look for masculine traits in build such as crest and muscling
Brown Swiss Cow
prostaglandin
colostrum
visual evaluation (BSE)
28. 4-6 days
elastrator
burdizzo
mare estrus
penis and prepuce observation (BSE)
29. 4-6 days
hypothalamus and pituitary gland
mare estrus
1. more cost effective - 2. powdered milk is in excess production
organs used in spermatogenesis
30. (male) pushes the testes upward toward the body for warmth or protection
Testicles will produce testosterone but not sperm. Bull will attempt to mate - but will be sterile
uterus
dartos muscle
Lutinizing Hormone in females
31. Scar tissue plugs up chambers of udder
colostrum
semen evaluation (BSE)
prostaglandin
mastitis
32. Failure to have one testis (gonad) to descend
Brown Swiss Cow
prostaglandin
sertoli cells
monorchid
33. Not under a timeline - cow can not be sold as steak
uterus
ewe gestation
van deferens
Grading choice
34. 30 hours after estrus begins
elastrator
cow ovulation
cremaster muscle
Sperm survival specs
35. Birthing process (termination of gestation)
Parturition
Testicles will produce testosterone but not sperm. Bull will attempt to mate - but will be sterile
Holstein Cow
rectal palpation (BSE)
36. Largest dairy cow - largest udder - highly vascular - eat 40-50% dry matter (eat alot) - most total butterfat
Holstein Cow
femininity of a heifer
sigmoid flexure
Where livelihood is in agriculture
37. Important 'landmark' during palpation
cervix
dry-off time in dairy cattle
cow ovulation
Lutinizing Hormone in males
38. 19-23 (21) days
6-8 weeks
sow estrus cycle
Size of cow in relation to the amount of milk produced
seasonally polyestrous
39. 45-60 days after breeding; re-breed as required
Jersey Cow
dairy cattle pregnancy check
rectal palpation (BSE)
things to check for in a breeding soundness exam (BSE)
40. Failure to have both testis (gonads) descend
cryptorchid
#1 cost in production
testis (gonads)
Size of cow in relation to the amount of milk produced
41. 1. brain function - 2. blood flow - 3. willing female
Follical Stimulating in males
what has to happen for males for copulation to occur
leydid or interstitial cells
organs used in spermatogenesis
42. Head - neck - mid-piece - tail. genetic material - has an enzyme covering that allows it to penetrate the egg
sperm cell
sertoli cells
you want as much sperm as possible to come in contact with the egg before ovulation. the main idea is to have the sperm already in the oviduct when the egg passes through
prostaglandin
43. When are dairy cattle dehorned?
butterfat
things to check for in a breeding soundness exam (BSE)
vagina
~1 month
44. 19-23 (21) days
Holstein Cow
you want as much sperm as possible to come in contact with the egg before ovulation. the main idea is to have the sperm already in the oviduct when the egg passes through
cervix
sow estrus cycle
45. 19-23 (21) days
functions of progestrone
Follical Stimulating in females
normal presentation of the fetus
cow estrus cycle
46. Small tubes located at the upper ends of the uterine horns. connects uterine horn to infundibulum. passageway of the egg.
scrotum
penis and prepuce observation (BSE)
oviducts
cow estrus cycle
47. Start of the reproductive tract for the female. located outside of the body
feeding a high producing dairy cow
sow estrus cycle
vulva
feeding a high producing dairy cow
48. 1. brain function - 2. blood flow - 3. willing female
penis and prepuce observation (BSE)
what has to happen for males for copulation to occur
dartos muscle
visual evaluation (BSE)
49. 14-19 (17) days
Dairy Cattle Gestation
Dairy calves are removed from cow at birth to...
ewe estrus cycle
effects of BST
50. 1. need to be restricted in amt of grain - 2. no more than 70% of ration can be concentrates. 3. *Acidic acid has to be produced in order for milk synthesis to occur (30% forages)
burdizzo
cow estrus
cryptorchid
feeding a high producing dairy cow