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Dairy Cattle And Reproduction

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. Milk ~305 days - dry 60 days prior to calving






2. 45-60 days after breeding; re-breed as required






3. When are dairy cattle dehorned?






4. (male) Primary sex organ - produces sperm (male gamete) and male sex hormones - 2 total






5. 30-38 hours after estrus cycle begins






6. The more stressed out the male is - the less sperm he is going to produce






7. 1. reproduction - 2. mastitis/udder problems - 3. low milk production - 4. soundness/poor feet and legs (living on concrete)






8. (male) pushes the testes upward toward the body for warmth or protection






9. Produce testosterone. located between the seminiferous tubules






10. Front feet and head first. (except for hogs and dogs)






11. 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.






12. 283 days






13. Indicator of sperm production. the bigger the scrotal circumference the bigger volume of sperm because more seminal vesicles available to produce the sperm






14. The more stressed out the male is - the less sperm he is going to produce






15. Serves as a bone cradle for the reproductive system. used greatly in palpation as a 'landmark'.






16. Organ of copulation - provides passageway for semen and urine - muscular organ characterized especially by its spongy - erectile tissue that fills with blood






17. Front feet and head first. (except for hogs and dogs)






18. 24 hours before end of estrus cycle






19. Supply nutrients for the sperm following ejaculation and deposition into the female reproductive tract






20. Supply nutrients for the sperm following ejaculation and deposition into the female reproductive tract






21. 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






22. Male on one pin and female on other side






23. Duct which connects epididymis to urethra of the penis. transports sperm at ejaculation. cut to sterilize male.






24. Pulls sperm and egg together - gets body ready for pregnany - stimulates growth cells - develops mammary glands - starts to deposit fat.






25. (LH) causes female's egg to break (her period)






26. Depository for semen during insemination. where urine leaves the body






27. Microscopic - make sure not sterile - very few bulls are actually tested






28. Urinary calculi.






29. Implies the amount of estrogen production






30. 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






31. Important 'landmark' during palpation






32. % of fat in milk. makes cheeses and ice cream. regulates cost of milk






33. 1. brain function - 2. blood flow - 3. willing female






34. (male) pushes the testes outward toward the legs for a cool-down off of the body






35. Failure to have both testis (gonads) descend






36. Not being bred back into herd. horses are seasonal breeders vs. cows as anytime breeders






37. Knife-loose ~1wk of growth. band-loose ~2wks of growth.






38. 4-6 days






39. Boars and stallions-> deliver semen directly into the cervix. bulls and rams-> deliver semen into the vagina.






40. Cycle that lasts weeks (ovulation->hormone cycles->ovulation)






41. 30 hours after estrus begins






42. Luteolysis happens because of the ____________ hormone






43. Way to know everything is alright with the breeding male






44. 1-2 days






45. Boars and stallions-> deliver semen directly into the cervix. bulls and rams-> deliver semen into the vagina.






46. Allows extension of penis without fibro-elastic penis






47. Animals which have only one estrous cycle (ex: dog - fox)






48. Birthing process (termination of gestation)






49. 147 days






50. Hold the penis in the bulls body when not in use. releases penis before ejaculation or urination.