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Test your basic knowledge |
Dairy Cattle And Reproduction
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Subjects
:
industries
,
dairy
Instructions:
Answer 50 questions in 15 minutes.
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study here
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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. Examine accessory glands - also to know how big the pelvic opening is->heritable->relates to how much dystocia that bull's daughter has
rectal palpation (BSE)
visual evaluation (BSE)
ewe's estrous cycle
Lutinizing Hormone in females
2. So when offspring are born - there is more food to be found for energy stores and fat deposits IN THE SPRING
reason for seasonal breeding periods
sow estrus cycle
ewe gestation
scrotal circumference (BSE)
3. 1. sperm is not implanted in egg until hours after breeding. 2. fetal growth has not yet finished.
Reasons for gestation length being affected
burdizzo
hormones
rectal palpation (BSE)
4. Superior genes are _______ to multiply
organs used in spermatogenesis
Hard
ewe estrus cycle
Follical Stimulating in females
5. Gonadotropic (GnRH) is (FSH and LH). Follical Stimulating (FSH) and Lutinizing Hormone (LH).
monestrous
penis and prepuce observation (BSE)
elastrator
hormones
6. Animals which have only one estrous cycle (ex: dog - fox)
#1 cost in production
castration
monestrous
scrotum
7. When are dairy cattle dehorned?
~1 month
vulva
leydid or interstitial cells
sow gestation
8. (from Jersey Islands in Great Britain) Smallest cow - least milk - highest butterfat %
dry-off time in dairy cattle
mastitis
vagina
Jersey Cow
9. (FSH) helps to regulate puberty - needed every day - stimulates the sertoli cells to produce nutrients for the sperm
mare estrus
Follical Stimulating in males
uterus
humans: stress level vs sperm
10. 1-2 days
ewe estrus cycle
hypothalamus and pituitary gland
seasonally polyestrous
ewe estrus
11. 30 hours after estrus begins
castration
Holstein Cow
Where livelihood is in agriculture
cow ovulation
12. Male on one pin and female on other side
libido test (BSE)
growth lost from castration methods (knife & band)
seasonally polyestrous
1. more cost effective - 2. powdered milk is in excess production
13. (male) pushes the testes upward toward the body for warmth or protection
cow estrus cycle
mare ovulation
dartos muscle
libido test (BSE)
14. Check feet and legs - look for masculine traits in build such as crest and muscling
sow estrus
why does the cow need fat deposits during pregnancy?
rectal palpation (BSE)
visual evaluation (BSE)
15. (LH) causes female's egg to break (her period)
Size of cow in relation to the amount of milk produced
Lutinizing Hormone in females
ewe gestation
monorchid
16. (male) definition: duct located outside of the testes. 3 parts: head - body - tail. 4 Functions:concentrate sperm - store sperm - transport sperm - site of sperm maturation. entire process takes ~40-60 days
prostate gland
epididymis: definition - 3 parts - 4 functions
effects of BST
monestrous
17. Not being bred back into herd. horses are seasonal breeders vs. cows as anytime breeders
sow gestation
age and castration
Mares
mastitis
18. Duct through penis that carries sperm and urine
Dairy calves are removed from cow at birth to...
urethra
Dairy Cattle Lactation (standard)
ewe ovulation
19. Help to signal hormone levels which we need both in the brain right next to each other.
butterfat
hypothalamus and pituitary gland
mare estrus
elastrator
20. Implies the amount of estrogen production
elastrator
castration
femininity of a heifer
Lutinizing Hormone in males
21. When are steers and heifers weaned from bottle feeding?
growth lost from castration methods (knife & band)
feeding a high producing dairy cow
oviducts
6-8 weeks
22. Urinary calculi.
kidney stones also called ________ ___________ can develop in the sigmoid flexure
sigmoid flexure
mare estrus
mastitis
23. What helps regulate spermatogenesis?
visual evaluation (BSE)
why does the cow need fat deposits during pregnancy?
growth lost from castration methods (knife & band)
testosterone
24. Can produce 200 calves naturally (~100 bulls) - top 1-2% will grade like him. everything left to chance if no AI performed
Where livelihood is in agriculture
spermatogenesis
Hormones from both the fetus and the mom.
Avg. bull specs
25. Gonadotropic (GnRH) is (FSH and LH). Follical Stimulating (FSH) and Lutinizing Hormone (LH).
Holstein Cow
vulva
hormones
cryptorchid
26. Milk ~305 days - dry 60 days prior to calving
dartos muscle
Dairy Cattle milking schedule
testosterone
humans: stress level vs sperm
27. To remove/separate testicles from animal's body before animal reaches puberty
oviducts
castration
van deferens
butterfat
28. BST given to dairy cattle makes the mammary gland more persistent - helps produce more milk. good as Long-term because it does not cause cow to bulk up - provides more milk/cow Which means less cows needed - less cows need to be given feed - lower co
effects of BST
Holstein Cow
penis sizes vs delivering methods
effects of estrogen
29. Castration tool which clamps down on the vans deferens. causes the sperm to not reach the penis to be ejaculated
burdizzo
Testicles will produce testosterone but not sperm. Bull will attempt to mate - but will be sterile
behavioral signs of estrus
prostaglandin
30. 30-38 hours after estrus cycle begins
sow ovulation
Grading choice
libido test (BSE)
elastrator
31. (LH) stimulates the Leydig cells to produce testosterone
Lutinizing Hormone in males
~1 month
Mares
dry-off time in dairy cattle
32. When she is pregnant in her last trimester because she needs the energy to carry around and deliver the calf. and when the calf is born because the cow needs the fat to be deposit it into her milk for the calf's energy stores.
sow ovulation
scrotal circumference (BSE)
cow gestation
why does the cow need fat deposits during pregnancy?
33. Parturition is controlled by...
feeding a high producing dairy cow
~1 month
Hormones from both the fetus and the mom.
semen evaluation (BSE)
34. 24 hours before end of estrus cycle
Mares
rectal palpation (BSE)
mare ovulation
Where livelihood is in agriculture
35. Way to know everything is alright with the breeding male
purpose of Breeding Soundness Exam (BSE) for males
Follical Stimulating in females
van deferens
castration
36. Larger the cow - more milk is produced; smaller the cow - less milk is produced
cow ovulation
Where livelihood is in agriculture
Size of cow in relation to the amount of milk produced
Mares
37. Boars and stallions-> deliver semen directly into the cervix. bulls and rams-> deliver semen into the vagina.
penis sizes vs delivering methods
dartos muscle
effects of BST
age and castration
38. Look for infection - split - and rupture of the penis
ewe gestation
urethra
penis and prepuce observation (BSE)
mare gestation
39. Animals which have only one estrous cycle (ex: dog - fox)
Dairy Cattle Gestation
elastrator
age and castration
monestrous
40. Hold the penis in the bulls body when not in use. releases penis before ejaculation or urination.
Where livelihood is in agriculture
retractor muscles
Holstein Cow
uterus
41. 16-20 hours
van deferens
cow estrus
Dairy Cattle Lactation (standard)
prostaglandin
42. When she is pregnant in her last trimester because she needs the energy to carry around and deliver the calf. and when the calf is born because the cow needs the fat to be deposit it into her milk for the calf's energy stores.
testosterone
kidney stones also called ________ ___________ can develop in the sigmoid flexure
why does the cow need fat deposits during pregnancy?
retractor muscles
43. 30 hours after estrus begins
prostate gland
cow ovulation
feeding a high producing dairy cow
penis and prepuce observation (BSE)
44. (male) Primary sex organ - produces sperm (male gamete) and male sex hormones - 2 total
testis (gonads)
Parturition
leydid or interstitial cells
mare estrus
45. ~60 days before calving
sigmoid flexure
dry-off time in dairy cattle
behavioral signs of estrus
Reasons for gestation length being affected
46. Serves as a bone cradle for the reproductive system. used greatly in palpation as a 'landmark'.
sertoli cells
age and castration
Blood
pelvis
47. Sperm is produced here
mare estrus
seminiferous tubules
Jersey Cow
normal presentation of the fetus
48. Castration tool which clamps down on the vans deferens. causes the sperm to not reach the penis to be ejaculated
mare's estrous cycle
burdizzo
Where livelihood is in agriculture
ewe gestation
49. ~60 days before calving
Avg. bull specs
dry-off time in dairy cattle
age and castration
#1 cost in production
50. Cleans and lubricates the urethra ahead of the sperm. (if not - the urine in the urethra has a high salt content and would cause sperm to rupture and die)
uterus
seminiferous tubules
dry matter and water
prostate gland
Sorry!:) No result found.
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