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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. Check feet and legs - look for masculine traits in build such as crest and muscling
penis sizes vs delivering methods
ewe estrus cycle
visual evaluation (BSE)
colostrum
2. Can produce 200 calves naturally (~100 bulls) - top 1-2% will grade like him. everything left to chance if no AI performed
Parturition
sow ovulation
mastitis
Avg. bull specs
3. (from Jersey Islands in Great Britain) Smallest cow - least milk - highest butterfat %
mare estrus cycle
colostrum
Jersey Cow
Holstein Cow
4. 283 days
reason for seasonal breeding periods
cow gestation
Lutinizing Hormone in females
sow gestation
5. Sperm is produced here
seminiferous tubules
hypothalamus and pituitary gland
dairy cattle pregnancy check
mare ovulation
6. (FSH) causes egg to mature in females
vagina
Dairy Cattle Gestation
effects of estrogen
Follical Stimulating in females
7. 45-60 days after breeding; re-breed as required
behavioral signs of estrus
growth lost from castration methods (knife & band)
ewe ovulation
dairy cattle pregnancy check
8. What helps regulate spermatogenesis?
Bull's fibro-elastic penis
testosterone
visual evaluation (BSE)
epididymis: definition - 3 parts - 4 functions
9. 1. seminiferous tubules - 2. sertoli cells - 3. leydid or interstitial cells
organs used in spermatogenesis
Lutinizing Hormone in males
dairy cattle pregnancy check
mare estrus cycle
10. Hold the penis in the bulls body when not in use. releases penis before ejaculation or urination.
organs used in spermatogenesis
Mares
prostaglandin
retractor muscles
11. Important 'landmark' during palpation
semen evaluation (BSE)
cervix
retractor muscles
ewe ovulation
12. Urinary calculi.
effects of estrogen
leydid or interstitial cells
Bull's fibro-elastic penis
kidney stones also called ________ ___________ can develop in the sigmoid flexure
13. (LH) stimulates the Leydig cells to produce testosterone
seminiferous tubules
Lutinizing Hormone in males
monorchid
scrotum
14. Actual heat cycle (period)
Brown Swiss Cow
uterus
estrus
dry-off time in dairy cattle
15. 26 hours after estrus begins
hypothalamus and pituitary gland
why does the cow need fat deposits during pregnancy?
ewe ovulation
growth lost from castration methods (knife & band)
16. Indicator of sperm production. the bigger the scrotal circumference the bigger volume of sperm because more seminal vesicles available to produce the sperm
mastitis
effects of BST
cow estrus
scrotal circumference (BSE)
17. 4-6 days
mare estrus
scrotum
Lutinizing Hormone in males
estrous
18. Head - neck - mid-piece - tail. genetic material - has an enzyme covering that allows it to penetrate the egg
reasons for castration
reason for seasonal breeding periods
hormones
sperm cell
19. Days which have increasing daylight hours
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20. (switzerland) 2nd in size and milk production - most muscle -
Brown Swiss Cow
ewe estrus
Testicles will produce testosterone but not sperm. Bull will attempt to mate - but will be sterile
eminal vesicles
21. Contains and regulates the temp of the testes for sperm production
ewe gestation
Parturition
scrotum
rectal palpation (BSE)
22. Pulls sperm and egg together - gets body ready for pregnany - stimulates growth cells - develops mammary glands - starts to deposit fat.
4 major reasons for culling dairy cows
Holstein Cow
penis sizes vs delivering methods
effects of estrogen
23. Look for infection - split - and rupture of the penis
penis and prepuce observation (BSE)
Hard
age and castration
feeding a high producing dairy cow
24. 30-38 hours after estrus cycle begins
sow ovulation
dartos muscle
leydid or interstitial cells
kidney stones also called ________ ___________ can develop in the sigmoid flexure
25. 30 hours after estrus begins
Testicles will produce testosterone but not sperm. Bull will attempt to mate - but will be sterile
dartos muscle
Where livelihood is in agriculture
cow ovulation
26. Head - neck - mid-piece - tail. genetic material - has an enzyme covering that allows it to penetrate the egg
libido test (BSE)
sperm cell
mare estrus cycle
reasons for castration
27. 4-6 days
ewe ovulation
Size of cow in relation to the amount of milk produced
mare estrus
seasonally polyestrous
28. Start of the reproductive tract for the female. located outside of the body
vulva
Dairy Cattle milking schedule
scrotal circumference (BSE)
humans: stress level vs sperm
29. What makes the milk flow through the mammary glands?
hypothalamus and pituitary gland
Blood
mare ovulation
dartos muscle
30. Supply nutrients for the sperm following ejaculation and deposition into the female reproductive tract
penis proper
testis (gonads)
Dairy Cattle Lactation (standard)
eminal vesicles
31. Located directly in front of the cervix. fertilized egg implants here. connected to two uterine horns. implantation occurs on the same side as ovulation occurred.
#1 cost in production
cow ovulation
uterus
testosterone
32. (male) pushes the testes outward toward the legs for a cool-down off of the body
cremaster muscle
eminal vesicles
Bull's fibro-elastic penis
castration
33. 30-38 hours after estrus cycle begins
prostate gland
sow ovulation
6-8 weeks
dartos muscle
34. So when offspring are born - there is more food to be found for energy stores and fat deposits IN THE SPRING
Lutinizing Hormone in females
reason for seasonal breeding periods
growth lost from castration methods (knife & band)
libido test (BSE)
35. Can produce 200 calves naturally (~100 bulls) - top 1-2% will grade like him. everything left to chance if no AI performed
Dairy Cattle Lactation (standard)
sow estrus cycle
accessory sex glands
Avg. bull specs
36. Serves as a bone cradle for the reproductive system. used greatly in palpation as a 'landmark'.
humans: stress level vs sperm
pelvis
penis and prepuce observation (BSE)
dry-off time in dairy cattle
37. To remove/separate testicles from animal's body before animal reaches puberty
Dairy Cattle milking schedule
castration
cowper's gland
Hard
38. What helps regulate spermatogenesis?
kidney stones also called ________ ___________ can develop in the sigmoid flexure
testosterone
ewe gestation
kidney stones also called ________ ___________ can develop in the sigmoid flexure
39. Not being bred back into herd. horses are seasonal breeders vs. cows as anytime breeders
cervix
sow estrus
dry-off time in dairy cattle
Mares
40. Duct through penis that carries sperm and urine
urethra
burdizzo
Culls bulls earlier (2 reasons)
penis proper
41. 336 days
hormones
mare gestation
Hard
dry-off time in dairy cattle
42. ~60 days before calving
butterfat
dry-off time in dairy cattle
Dairy Cattle milking schedule
mare estrus
43. Not under a timeline - cow can not be sold as steak
Parturition
pelvis
Grading choice
~1 month
44. 2 month growth cycle. stored in the epididymis of the bull
semen evaluation (BSE)
Sperm growth rate
Follical Stimulating in males
scrotum
45. Superior genes are _______ to multiply
pelvis
6-8 weeks
cow ovulation
Hard
46. Located directly in front of the cervix. fertilized egg implants here. connected to two uterine horns. implantation occurs on the same side as ovulation occurred.
uterus
#1 cost in production
leydid or interstitial cells
mare estrus
47. Boars and stallions-> deliver semen directly into the cervix. bulls and rams-> deliver semen into the vagina.
sow estrus
penis sizes vs delivering methods
dartos muscle
Hard
48. Sperm production
~1 month
spermatogenesis
retractor muscles
reason for seasonal breeding periods
49. Check feet and legs - look for masculine traits in build such as crest and muscling
purpose of Breeding Soundness Exam (BSE) for males
butterfat
visual evaluation (BSE)
functions of progestrone
50. Produce testosterone. located between the seminiferous tubules
humans: stress level vs sperm
hypothalamus and pituitary gland
leydid or interstitial cells
Follical Stimulating in males