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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. Help to signal hormone levels which we need both in the brain right next to each other.
Where livelihood is in agriculture
why does the cow need fat deposits during pregnancy?
Lutinizing Hormone in females
hypothalamus and pituitary gland
2. Male on one pin and female on other side
hormones
libido test (BSE)
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
mare estrus
3. 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
vagina
Grading choice
vagina
4. Castration tool which clamps down on the vans deferens. causes the sperm to not reach the penis to be ejaculated
visual evaluation (BSE)
burdizzo
behavioral signs of estrus
ewe ovulation
5. 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)
estrus
Lutinizing Hormone in females
age and castration
6. 2 month growth cycle. stored in the epididymis of the bull
Sperm growth rate
ewe estrus
Lutinizing Hormone in females
growth lost from castration methods (knife & band)
7. Look for infection - split - and rupture of the penis
seasonally polyestrous
Dairy calves are removed from cow at birth to...
penis and prepuce observation (BSE)
sow estrus
8. Milk is 15% ________ and 85% __________.
Avg. bull specs
dry matter and water
cremaster muscle
4 major reasons for culling dairy cows
9. Castration tool which clamps down on the vans deferens. causes the sperm to not reach the penis to be ejaculated
Culls bulls earlier (2 reasons)
testis (gonads)
what has to happen for males for copulation to occur
burdizzo
10. 30-38 hours after estrus cycle begins
things to check for in a breeding soundness exam (BSE)
sow ovulation
urethra
polyestrous
11. 24 hours before end of estrus cycle
#1 cost in production
what has to happen for males for copulation to occur
mare ovulation
normal presentation of the fetus
12. (FSH) causes egg to mature in females
polyestrous
Follical Stimulating in females
elastrator
why does the cow need fat deposits during pregnancy?
13. Why does estrus happen before ovulation?
feeding a high producing dairy cow
Bull's fibro-elastic penis
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
Brown Swiss Cow
14. When are steers and heifers weaned from bottle feeding?
accessory sex glands
seasonally polyestrous
6-8 weeks
eminal vesicles
15. Milk ~305 days - dry 60 days prior to calving
mastitis
Dairy Cattle milking schedule
mare's estrous cycle
things to check for in a breeding soundness exam (BSE)
16. Produce testosterone. located between the seminiferous tubules
rectal palpation (BSE)
Blood
leydid or interstitial cells
effects of BST
17. Head - neck - mid-piece - tail. genetic material - has an enzyme covering that allows it to penetrate the egg
sperm cell
Follical Stimulating in females
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
leydid or interstitial cells
18. (switzerland) 2nd in size and milk production - most muscle -
libido test (BSE)
hormones
Brown Swiss Cow
Bull's fibro-elastic penis
19. Pulls sperm and egg together - gets body ready for pregnany - stimulates growth cells - develops mammary glands - starts to deposit fat.
prostate gland
normal presentation of the fetus
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
effects of estrogen
20. Largest dairy cow - largest udder - highly vascular - eat 40-50% dry matter (eat alot) - most total butterfat
sow ovulation
colostrum
Dairy calves are removed from cow at birth to...
Holstein Cow
21. Small tubes located at the upper ends of the uterine horns. connects uterine horn to infundibulum. passageway of the egg.
normal presentation of the fetus
Jersey Cow
oviducts
Reasons for gestation length being affected
22. 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
testis (gonads)
spermatogenesis
hypothalamus and pituitary gland
23. Prevent the cow from getting an infection from the calve
Dairy calves are removed from cow at birth to...
Dairy Cattle Lactation (standard)
cervix
Sperm growth rate
24. Check feet and legs - look for masculine traits in build such as crest and muscling
hormones
mare estrus cycle
seasonally polyestrous
visual evaluation (BSE)
25. Animals which have only one estrous cycle (ex: dog - fox)
femininity of a heifer
organs used in spermatogenesis
monestrous
cryptorchid
26. Largest dairy cow - largest udder - highly vascular - eat 40-50% dry matter (eat alot) - most total butterfat
eminal vesicles
6-8 weeks
Holstein Cow
functions of progestrone
27. 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)
prostate gland
leydid or interstitial cells
cremaster muscle
#1 cost in production
28. Serves as a bone cradle for the reproductive system. used greatly in palpation as a 'landmark'.
reasons for castration
oviducts
prostate gland
pelvis
29. Castration tool that uses a band around the testicles which cuts off circulation and eventually the testicles fall off
elastrator
pelvis
estrus
1. more cost effective - 2. powdered milk is in excess production
30. Sperm production
spermatogenesis
why does the cow need fat deposits during pregnancy?
visual evaluation (BSE)
Blood
31. 1. brain function - 2. blood flow - 3. willing female
what has to happen for males for copulation to occur
why does the cow need fat deposits during pregnancy?
scrotal circumference (BSE)
mare estrus cycle
32. (male) pushes the testes upward toward the body for warmth or protection
why does the cow need fat deposits during pregnancy?
dartos muscle
penis proper
feeding a high producing dairy cow
33. Urinary calculi.
kidney stones also called ________ ___________ can develop in the sigmoid flexure
cowper's gland
Follical Stimulating in males
sow estrus
34. 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.
reason for seasonal breeding periods
normal presentation of the fetus
prostaglandin
uterus
35. Superior genes are _______ to multiply
Avg. bull specs
mare estrus
Hard
libido test (BSE)
36. Not under a timeline - cow can not be sold as steak
growth lost from castration methods (knife & band)
penis and prepuce observation (BSE)
testis (gonads)
Grading choice
37. Duct which connects epididymis to urethra of the penis. transports sperm at ejaculation. cut to sterilize male.
Bull's fibro-elastic penis
van deferens
cowper's gland
mastitis
38. What makes the milk flow through the mammary glands?
Follical Stimulating in females
Jersey Cow
scrotal circumference (BSE)
Blood
39. Cleans and lubricates the urethra. secretion is thick - viscous - and very slippery.
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40. What helps regulate spermatogenesis?
testosterone
colostrum
Blood
Follical Stimulating in females
41. Important 'landmark' during palpation
cervix
vulva
why does the cow need fat deposits during pregnancy?
organs used in spermatogenesis
42. 45-60 days after breeding; re-breed as required
retractor muscles
dairy cattle pregnancy check
dry matter and water
accessory sex glands
43. Allows extension of penis without fibro-elastic penis
cow estrus cycle
sow estrus cycle
sigmoid flexure
sow estrus
44. 283 days
cow gestation
age and castration
femininity of a heifer
what has to happen for males for copulation to occur
45. Luteolysis happens because of the ____________ hormone
cryptorchid
cremaster muscle
prostate gland
prostaglandin
46. Sperm production
spermatogenesis
reasons for castration
prostate gland
sow gestation
47. 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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48. (male) pushes the testes upward toward the body for warmth or protection
Lutinizing Hormone in females
Bull's fibro-elastic penis
Sperm survival specs
dartos muscle
49. (male) Primary sex organ - produces sperm (male gamete) and male sex hormones - 2 total
Sperm growth rate
Where livelihood is in agriculture
Reasons for gestation length being affected
testis (gonads)
50. Standing to be mounted (last one able to notice); mounting other animals; social behavior-restless - gregarious - activity - vocalizing; frequent urination; mucous discharge
behavioral signs of estrus
cowper's gland
mastitis
butterfat