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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. ~60 days before calving
libido test (BSE)
hypothalamus and pituitary gland
dry-off time in dairy cattle
visual evaluation (BSE)
2. Failure to have both testis (gonads) descend
cryptorchid
growth lost from castration methods (knife & band)
vulva
cow gestation
3. (FSH) helps to regulate puberty - needed every day - stimulates the sertoli cells to produce nutrients for the sperm
dartos muscle
Follical Stimulating in males
Hormones from both the fetus and the mom.
colostrum
4. Can survive ~7 days in cow. vast majority <48 hours
organs used in spermatogenesis
accessory sex glands
Sperm survival specs
Brown Swiss Cow
5. Depository for semen during insemination. where urine leaves the body
scrotal circumference (BSE)
vagina
Brown Swiss Cow
monestrous
6. Scar tissue plugs up chambers of udder
dairy cattle pregnancy check
mare estrus cycle
mastitis
hypothalamus and pituitary gland
7. Contains and regulates the temp of the testes for sperm production
retractor muscles
Grading choice
scrotum
accessory sex glands
8. 1. visual evaluation - 2. scrotal circumference - 3. penis and prepuce observation - 4. rectal palpation - 5. libido test - 6. semen evaluation
Grading choice
kidney stones also called ________ ___________ can develop in the sigmoid flexure
things to check for in a breeding soundness exam (BSE)
dartos muscle
9. (switzerland) 2nd in size and milk production - most muscle -
Brown Swiss Cow
feeding a high producing dairy cow
Sperm growth rate
spermatogenesis
10. 283 days
epididymis: definition - 3 parts - 4 functions
Jersey Cow
cow gestation
sow estrus cycle
11. FEED
#1 cost in production
penis proper
Follical Stimulating in females
van deferens
12. (from Jersey Islands in Great Britain) Smallest cow - least milk - highest butterfat %
sow gestation
burdizzo
Jersey Cow
cervix
13. Allows extension of penis without fibro-elastic penis
prostaglandin
sigmoid flexure
accessory sex glands
normal presentation of the fetus
14. To remove/separate testicles from animal's body before animal reaches puberty
Brown Swiss Cow
castration
reasons for castration
dairy cattle pregnancy check
15. Larger the cow - more milk is produced; smaller the cow - less milk is produced
stag
Size of cow in relation to the amount of milk produced
cow estrus
Blood
16. 45-60 days after breeding; re-breed as required
feeding a high producing dairy cow
burdizzo
dairy cattle pregnancy check
sow ovulation
17. Microscopic - make sure not sterile - very few bulls are actually tested
Culls bulls earlier (2 reasons)
semen evaluation (BSE)
reason for seasonal breeding periods
hypothalamus and pituitary gland
18. Cycle that lasts weeks (ovulation->hormone cycles->ovulation)
normal presentation of the fetus
Sperm growth rate
estrous
growth lost from castration methods (knife & band)
19. Animals which have many estrous periods during certain periods per year (ex: mare - ewe)
prostate gland
functions of progestrone
mare estrus
seasonally polyestrous
20. Luteolysis happens because of the ____________ hormone
prostaglandin
uterus
growth lost from castration methods (knife & band)
cremaster muscle
21. (LH) stimulates the Leydig cells to produce testosterone
sperm cell
Dairy calves are removed from cow at birth to...
Lutinizing Hormone in males
Blood
22. Milk is 15% ________ and 85% __________.
dry matter and water
leydid or interstitial cells
humans: stress level vs sperm
Follical Stimulating in males
23. 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)
6-8 weeks
uterus
mare ovulation
24. 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.
Testicles will produce testosterone but not sperm. Bull will attempt to mate - but will be sterile
cervix
hypothalamus and pituitary gland
why does the cow need fat deposits during pregnancy?
25. When are dairy cattle dehorned?
~1 month
mare ovulation
Parturition
Dairy Cattle Lactation (standard)
26. Cleans and lubricates the urethra. secretion is thick - viscous - and very slippery.
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27. Reproduction. more offspring leads to more feed costs - but is offset by reproduction numbers
Where livelihood is in agriculture
Blood
Culls bulls earlier (2 reasons)
functions of progestrone
28. Earlier you castrate a male - the easier it is on the animal. the longer you wait - death rates increase
mare's estrous cycle
Grading choice
age and castration
normal presentation of the fetus
29. Animals which have many estrous periods during certain periods per year (ex: mare - ewe)
pelvis
seasonally polyestrous
feeding a high producing dairy cow
Culls bulls earlier (2 reasons)
30. When are dairy cattle dehorned?
Parturition
dairy cattle pregnancy check
age and castration
~1 month
31. Gonadotropic (GnRH) is (FSH and LH). Follical Stimulating (FSH) and Lutinizing Hormone (LH).
sow ovulation
Mares
purpose of Breeding Soundness Exam (BSE) for males
hormones
32. 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
age and castration
prostate gland
effects of BST
cowper's gland
33. 147 days
ewe gestation
cow gestation
normal presentation of the fetus
prostate gland
34. (male) pushes the testes upward toward the body for warmth or protection
dartos muscle
Mares
dairy cattle pregnancy check
reason for seasonal breeding periods
35. To remove/separate testicles from animal's body before animal reaches puberty
castration
butterfat
Sperm survival specs
purpose of Breeding Soundness Exam (BSE) for males
36. Superior genes are _______ to multiply
Dairy Cattle Lactation (standard)
monestrous
Hard
penis sizes vs delivering methods
37. Prevent the cow from getting an infection from the calve
penis proper
Dairy calves are removed from cow at birth to...
1. more cost effective - 2. powdered milk is in excess production
penis and prepuce observation (BSE)
38. Completes uterine growth initiated by estrogen and prepares the uterus for nourishment of developing embryo if pregnancy occurs - supports pregnancy by maintaining quiescent state of reproductive tract and suppresses mating behavior - prevents ovulat
functions of progestrone
sertoli cells
sow gestation
penis and prepuce observation (BSE)
39. Why Dairy calves are fed powdered milk.
cow gestation
1. more cost effective - 2. powdered milk is in excess production
cow estrus
Dairy Cattle Gestation
40. 19-23 (21) days
sow estrus cycle
Jersey Cow
eminal vesicles
scrotal circumference (BSE)
41. Castration tool which clamps down on the vans deferens. causes the sperm to not reach the penis to be ejaculated
cremaster muscle
ewe ovulation
testis (gonads)
burdizzo
42. 265-285 days
cervix
Dairy Cattle Gestation
van deferens
libido test (BSE)
43. 2 month growth cycle. stored in the epididymis of the bull
retractor muscles
colostrum
Sperm growth rate
colostrum
44. 30 hours after estrus begins
humans: stress level vs sperm
organs used in spermatogenesis
testosterone
cow ovulation
45. Indicator of sperm production. the bigger the scrotal circumference the bigger volume of sperm because more seminal vesicles available to produce the sperm
scrotal circumference (BSE)
Follical Stimulating in females
1. more cost effective - 2. powdered milk is in excess production
why does the cow need fat deposits during pregnancy?
46. Scar tissue plugs up chambers of udder
femininity of a heifer
functions of progestrone
functions of progestrone
mastitis
47. Duct which connects epididymis to urethra of the penis. transports sperm at ejaculation. cut to sterilize male.
vagina
penis and prepuce observation (BSE)
van deferens
Dairy Cattle Lactation (standard)
48. (FSH) helps to regulate puberty - needed every day - stimulates the sertoli cells to produce nutrients for the sperm
Follical Stimulating in males
1. more cost effective - 2. powdered milk is in excess production
behavioral signs of estrus
ewe estrus
49. Produce testosterone. located between the seminiferous tubules
epididymis: definition - 3 parts - 4 functions
leydid or interstitial cells
Dairy Cattle Lactation (standard)
4 major reasons for culling dairy cows
50. Animals which have many estrous periods per year (ex: cow - sow)
ewe gestation
polyestrous
sperm cell
butterfat