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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. Not being bred back into herd. horses are seasonal breeders vs. cows as anytime breeders
Culls bulls earlier (2 reasons)
van deferens
mare estrus cycle
Mares
2. Start of the reproductive tract for the female. located outside of the body
vulva
cowper's gland
Sperm growth rate
Follical Stimulating in males
3. Provide nourishment for the developing sperm
ewe ovulation
Grading choice
sertoli cells
Follical Stimulating in females
4. Actual heat cycle (period)
retractor muscles
sow estrus
libido test (BSE)
estrus
5. Parturition is controlled by...
cervix
cremaster muscle
dairy cattle pregnancy check
Hormones from both the fetus and the mom.
6. Head - neck - mid-piece - tail. genetic material - has an enzyme covering that allows it to penetrate the egg
penis proper
penis proper
scrotum
sperm cell
7. (from Jersey Islands in Great Britain) Smallest cow - least milk - highest butterfat %
libido test (BSE)
mare ovulation
seasonally polyestrous
Jersey Cow
8. Actual heat cycle (period)
seasonally polyestrous
ewe estrus
what has to happen for males for copulation to occur
estrus
9. 283 days
cow gestation
age and castration
Avg. bull specs
cow estrus cycle
10. 1. bring in new genes - 2. replace males with leg problems (difficulty breeding) Note: culling has a much greater emphasis in the dairy industry vs the beef industry.
burdizzo
Culls bulls earlier (2 reasons)
testis (gonads)
Parturition
11. FEED
cowper's gland
#1 cost in production
Dairy calves are removed from cow at birth to...
estrus
12. Knife-loose ~1wk of growth. band-loose ~2wks of growth.
libido test (BSE)
growth lost from castration methods (knife & band)
monorchid
normal presentation of the fetus
13. What about the sperm for a bull which has been castrated but still has testicles?
monestrous
Grading choice
Testicles will produce testosterone but not sperm. Bull will attempt to mate - but will be sterile
sperm cell
14. Hold the penis in the bulls body when not in use. releases penis before ejaculation or urination.
retractor muscles
Avg. bull specs
testis (gonads)
mare ovulation
15. Failure to have both testis (gonads) descend
Brown Swiss Cow
feeding a high producing dairy cow
cryptorchid
cowper's gland
16. Indicator of sperm production. the bigger the scrotal circumference the bigger volume of sperm because more seminal vesicles available to produce the sperm
hormones
Culls bulls earlier (2 reasons)
scrotal circumference (BSE)
sertoli cells
17. Head - neck - mid-piece - tail. genetic material - has an enzyme covering that allows it to penetrate the egg
Dairy Cattle milking schedule
epididymis: definition - 3 parts - 4 functions
sperm cell
estrus
18. 1. brain function - 2. blood flow - 3. willing female
scrotal circumference (BSE)
cryptorchid
what has to happen for males for copulation to occur
hormones
19. Castration tool that uses a band around the testicles which cuts off circulation and eventually the testicles fall off
Reasons for gestation length being affected
Where livelihood is in agriculture
elastrator
Holstein Cow
20. 1-2 days
effects of estrogen
ewe estrus
Sperm survival specs
testosterone
21. Supply nutrients for the sperm following ejaculation and deposition into the female reproductive tract
ewe gestation
eminal vesicles
prostate gland
elastrator
22. Animals which have many estrous periods per year (ex: cow - sow)
polyestrous
Where livelihood is in agriculture
Sperm survival specs
cow gestation
23. Serves as a bone cradle for the reproductive system. used greatly in palpation as a 'landmark'.
pelvis
mastitis
penis sizes vs delivering methods
sertoli cells
24. Castration tool which clamps down on the vans deferens. causes the sperm to not reach the penis to be ejaculated
prostate gland
burdizzo
Hard
mare estrus
25. Boars and stallions-> deliver semen directly into the cervix. bulls and rams-> deliver semen into the vagina.
scrotal circumference (BSE)
cryptorchid
monorchid
penis sizes vs delivering methods
26. 30 hours after estrus begins
cow ovulation
testosterone
things to check for in a breeding soundness exam (BSE)
sperm cell
27. Animals which have only one estrous cycle (ex: dog - fox)
Jersey Cow
semen evaluation (BSE)
Dairy Cattle milking schedule
monestrous
28. Animals which have only one estrous cycle (ex: dog - fox)
Bull's fibro-elastic penis
reasons for castration
ewe gestation
monestrous
29. Milk ~305 days - dry 60 days prior to calving
rectal palpation (BSE)
humans: stress level vs sperm
Dairy Cattle milking schedule
reasons for castration
30. (switzerland) 2nd in size and milk production - most muscle -
elastrator
Brown Swiss Cow
1. more cost effective - 2. powdered milk is in excess production
hormones
31. Superior genes are _______ to multiply
cremaster muscle
prostaglandin
purpose of Breeding Soundness Exam (BSE) for males
Hard
32. Scar tissue plugs up chambers of udder
urethra
mare estrus cycle
mastitis
cow estrus cycle
33. Start of the reproductive tract for the female. located outside of the body
feeding a high producing dairy cow
mare estrus cycle
vulva
semen evaluation (BSE)
34. Cleans and lubricates the urethra. secretion is thick - viscous - and very slippery.
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35. Contains and regulates the temp of the testes for sperm production
cowper's gland
sow estrus
scrotum
femininity of a heifer
36. Microscopic - make sure not sterile - very few bulls are actually tested
semen evaluation (BSE)
butterfat
purpose of Breeding Soundness Exam (BSE) for males
Brown Swiss Cow
37. ~305 days (altough often longer due to breeding difficulties)
functions of progestrone
Dairy Cattle Lactation (standard)
polyestrous
Sperm survival specs
38. Animals which have many estrous periods during certain periods per year (ex: mare - ewe)
Mares
seasonally polyestrous
cow ovulation
mare estrus cycle
39. Animals which have many estrous periods during certain periods per year (ex: mare - ewe)
epididymis: definition - 3 parts - 4 functions
Lutinizing Hormone in males
prostaglandin
seasonally polyestrous
40. 30-38 hours after estrus cycle begins
sow ovulation
visual evaluation (BSE)
scrotal circumference (BSE)
Sperm growth rate
41. Castration tool that uses a band around the testicles which cuts off circulation and eventually the testicles fall off
Testicles will produce testosterone but not sperm. Bull will attempt to mate - but will be sterile
colostrum
elastrator
functions of progestrone
42. 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
humans: stress level vs sperm
Brown Swiss Cow
Where livelihood is in agriculture
functions of progestrone
43. 147 days
epididymis: definition - 3 parts - 4 functions
#1 cost in production
ewe gestation
behavioral signs of estrus
44. 16-20 hours
cow estrus
effects of BST
femininity of a heifer
libido test (BSE)
45. 1. to eliminate breeding the females at an early age - 2. makes animals less lean and provides a better cut for the market
testis (gonads)
colostrum
stag
reasons for castration
46. 147 days
ewe gestation
retractor muscles
humans: stress level vs sperm
dry matter and water
47. 336 days
Dairy Cattle Gestation
seasonally polyestrous
mare gestation
Follical Stimulating in males
48. Examine accessory glands - also to know how big the pelvic opening is->heritable->relates to how much dystocia that bull's daughter has
Parturition
Hard
rectal palpation (BSE)
kidney stones also called ________ ___________ can develop in the sigmoid flexure
49. Male on one pin and female on other side
#1 cost in production
libido test (BSE)
Lutinizing Hormone in females
vulva
50. (LH) stimulates the Leydig cells to produce testosterone
things to check for in a breeding soundness exam (BSE)
Lutinizing Hormone in males
what has to happen for males for copulation to occur
sow estrus cycle