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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. ~305 days (altough often longer due to breeding difficulties)






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






3. 1. to eliminate breeding the females at an early age - 2. makes animals less lean and provides a better cut for the market






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






5. Birthing process (termination of gestation)






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






7. Failure to have one testis (gonad) to descend






8. 30 hours after estrus begins






9. 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






10. Larger the cow - more milk is produced; smaller the cow - less milk is produced






11. Sperm is produced here






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






13. 4-6 days






14. Urinary calculi.






15. 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






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






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






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






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






20. Reproduction. more offspring leads to more feed costs - but is offset by reproduction numbers






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






22. 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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23. Scar tissue plugs up chambers of udder






24. Milk is 15% ________ and 85% __________.






25. Cleans and lubricates the urethra. secretion is thick - viscous - and very slippery.

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26. 45-60 days after breeding; re-breed as required






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






28. Luteolysis happens because of the ____________ hormone






29. 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






30. So when offspring are born - there is more food to be found for energy stores and fat deposits IN THE SPRING






31. 45-60 days after breeding; re-breed as required






32. Birthing process (termination of gestation)






33. 4-6 days






34. Look for infection - split - and rupture of the penis






35. What helps regulate spermatogenesis?






36. 14-19 (17) days






37. 10-37 (21) days






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






39. (male) definition: duct located outside of the testes. 3 parts: head - body - tail. 4 Functions:concentrate sperm - store sperm - transport sperm - site of sperm maturation. entire process takes ~40-60 days






40. 24 hours before end of estrus cycle






41. Castration tool which clamps down on the vans deferens. causes the sperm to not reach the penis to be ejaculated






42. 24 hours before end of estrus cycle






43. Check feet and legs - look for masculine traits in build such as crest and muscling






44. What makes the milk flow through the mammary glands?






45. Animals which have many estrous periods per year (ex: cow - sow)






46. Start of the reproductive tract for the female. located outside of the body






47. Provide nourishment for the developing sperm






48. 26 hours after estrus begins






49. Castration tool that uses a band around the testicles which cuts off circulation and eventually the testicles fall off






50. 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.