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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. Produce testosterone. located between the seminiferous tubules
leydid or interstitial cells
visual evaluation (BSE)
butterfat
seasonally polyestrous
2. Constitute 50-90% of the volume of the ejaculate. (3 glands total: seminal vesicles - prostate gland - cowper's gland)
accessory sex glands
monorchid
humans: stress level vs sperm
Hormones from both the fetus and the mom.
3. Small tubes located at the upper ends of the uterine horns. connects uterine horn to infundibulum. passageway of the egg.
mare estrus cycle
accessory sex glands
oviducts
spermatogenesis
4. 1-2 days
mare ovulation
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
ewe estrus
Follical Stimulating in males
5. 14-19 (17) days
cervix
Jersey Cow
ewe estrus cycle
burdizzo
6. Actual heat cycle (period)
estrus
visual evaluation (BSE)
accessory sex glands
libido test (BSE)
7. Failure to have both testis (gonads) descend
visual evaluation (BSE)
seasonally polyestrous
Culls bulls earlier (2 reasons)
cryptorchid
8. Male on one pin and female on other side
Dairy Cattle Gestation
Bull's fibro-elastic penis
libido test (BSE)
effects of estrogen
9. S-shaped inside body - relaxes to be exposed for breeding. Disadvantges: muscles weaken with age - cannot always hold it in - exposed to harsh outside conditions or stepped on.
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10. Duct through penis that carries sperm and urine
ewe's estrous cycle
urethra
mare ovulation
testis (gonads)
11. Allows extension of penis without fibro-elastic penis
retractor muscles
sigmoid flexure
cow gestation
Testicles will produce testosterone but not sperm. Bull will attempt to mate - but will be sterile
12. 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
effects of BST
functions of progestrone
Dairy Cattle Lactation (standard)
Avg. bull specs
13. What helps regulate spermatogenesis?
testosterone
libido test (BSE)
Dairy Cattle Gestation
sertoli cells
14. To remove/separate testicles from animal's body before animal reaches puberty
feeding a high producing dairy cow
castration
Avg. bull specs
testis (gonads)
15. (switzerland) 2nd in size and milk production - most muscle -
ewe estrus cycle
hormones
rectal palpation (BSE)
Brown Swiss Cow
16. Animal which has been castrated after puberty
stag
Dairy Cattle milking schedule
6-8 weeks
Avg. bull specs
17. Animal which has been castrated after puberty
what has to happen for males for copulation to occur
burdizzo
stag
prostaglandin
18. Microscopic - make sure not sterile - very few bulls are actually tested
semen evaluation (BSE)
reasons for castration
hormones
polyestrous
19. Duct which connects epididymis to urethra of the penis. transports sperm at ejaculation. cut to sterilize male.
sperm cell
Brown Swiss Cow
spermatogenesis
van deferens
20. Urinary calculi.
castration
sow ovulation
dartos muscle
kidney stones also called ________ ___________ can develop in the sigmoid flexure
21. 1. reproduction - 2. mastitis/udder problems - 3. low milk production - 4. soundness/poor feet and legs (living on concrete)
stag
4 major reasons for culling dairy cows
Bull's fibro-elastic penis
epididymis: definition - 3 parts - 4 functions
22. Milk made by mother which includes antibodies for the calf. MUST be given to the calf within the first 24 hrs of life. also provides calf with energy stores. effectiveness lasts from 4-8 months of age.
why does the cow need fat deposits during pregnancy?
colostrum
semen evaluation (BSE)
kidney stones also called ________ ___________ can develop in the sigmoid flexure
23. What makes the milk flow through the mammary glands?
visual evaluation (BSE)
femininity of a heifer
Blood
epididymis: definition - 3 parts - 4 functions
24. Provide nourishment for the developing sperm
accessory sex glands
cow estrus cycle
rectal palpation (BSE)
sertoli cells
25. Animals which have only one estrous cycle (ex: dog - fox)
sigmoid flexure
6-8 weeks
monestrous
scrotal circumference (BSE)
26. When are steers and heifers weaned from bottle feeding?
Where livelihood is in agriculture
sigmoid flexure
monestrous
6-8 weeks
27. 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.
dry matter and water
cow ovulation
cow estrus cycle
why does the cow need fat deposits during pregnancy?
28. Animals which have many estrous periods during certain periods per year (ex: mare - ewe)
feeding a high producing dairy cow
kidney stones also called ________ ___________ can develop in the sigmoid flexure
Reasons for gestation length being affected
seasonally polyestrous
29. Organ of copulation - provides passageway for semen and urine - muscular organ characterized especially by its spongy - erectile tissue that fills with blood
cow estrus cycle
penis proper
ewe ovulation
normal presentation of the fetus
30. % of fat in milk. makes cheeses and ice cream. regulates cost of milk
purpose of Breeding Soundness Exam (BSE) for males
behavioral signs of estrus
ewe gestation
butterfat
31. To remove/separate testicles from animal's body before animal reaches puberty
scrotal circumference (BSE)
Bull's fibro-elastic penis
castration
femininity of a heifer
32. 1. brain function - 2. blood flow - 3. willing female
what has to happen for males for copulation to occur
estrus
4 major reasons for culling dairy cows
mastitis
33. 1. visual evaluation - 2. scrotal circumference - 3. penis and prepuce observation - 4. rectal palpation - 5. libido test - 6. semen evaluation
things to check for in a breeding soundness exam (BSE)
ewe ovulation
functions of progestrone
dry-off time in dairy cattle
34. 114 days
Culls bulls earlier (2 reasons)
what has to happen for males for copulation to occur
elastrator
sow gestation
35. Superior genes are _______ to multiply
ewe estrus
Sperm survival specs
burdizzo
Hard
36. Birthing process (termination of gestation)
van deferens
normal presentation of the fetus
Parturition
Blood
37. Help to signal hormone levels which we need both in the brain right next to each other.
van deferens
hypothalamus and pituitary gland
dairy cattle pregnancy check
Jersey Cow
38. 16-20 hours
estrus
sertoli cells
cow estrus
humans: stress level vs sperm
39. Duct which connects epididymis to urethra of the penis. transports sperm at ejaculation. cut to sterilize male.
ewe estrus
retractor muscles
Reasons for gestation length being affected
van deferens
40. So when offspring are born - there is more food to be found for energy stores and fat deposits IN THE SPRING
prostate gland
sow gestation
ewe ovulation
reason for seasonal breeding periods
41. Can produce 200 calves naturally (~100 bulls) - top 1-2% will grade like him. everything left to chance if no AI performed
penis proper
Avg. bull specs
epididymis: definition - 3 parts - 4 functions
Jersey Cow
42. Cleans and lubricates the urethra. secretion is thick - viscous - and very slippery.
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43. 265-285 days
Bull's fibro-elastic penis
Dairy Cattle Gestation
growth lost from castration methods (knife & band)
Jersey Cow
44. 45-60 days after breeding; re-breed as required
dry matter and water
Dairy Cattle milking schedule
prostate gland
dairy cattle pregnancy check
45. Milk ~305 days - dry 60 days prior to calving
Dairy Cattle milking schedule
elastrator
Jersey Cow
seminiferous tubules
46. Animals which have many estrous periods during certain periods per year (ex: mare - ewe)
penis and prepuce observation (BSE)
penis sizes vs delivering methods
seasonally polyestrous
urethra
47. Urinary calculi.
oviducts
kidney stones also called ________ ___________ can develop in the sigmoid flexure
ewe estrus
penis and prepuce observation (BSE)
48. (LH) causes female's egg to break (her period)
Lutinizing Hormone in females
organs used in spermatogenesis
burdizzo
Grading choice
49. 1-3 days
Grading choice
mare's estrous cycle
penis proper
sow estrus
50. Scar tissue plugs up chambers of udder
mastitis
cow gestation
monestrous
femininity of a heifer