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






2. Small tubes located at the upper ends of the uterine horns. connects uterine horn to infundibulum. passageway of the egg.






3. Animals which have many estrous periods during certain periods per year (ex: mare - ewe)






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






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






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






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






8. 19-23 (21) days






9. Standing to be mounted (last one able to notice); mounting other animals; social behavior-restless - gregarious - activity - vocalizing; frequent urination; mucous discharge






10. 30 hours after estrus begins






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






12. Days which have increasing daylight hours

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






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






15. Urinary calculi.






16. (LH) stimulates the Leydig cells to produce testosterone






17. 1-3 days






18. Produce testosterone. located between the seminiferous tubules






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






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






21. (FSH) causes egg to mature in females






22. 1. seminiferous tubules - 2. sertoli cells - 3. leydid or interstitial cells






23. Prevent the cow from getting an infection from the calve






24. Why does estrus happen before ovulation?






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






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






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






28. 19-23 (21) days






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






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






31. Duct through penis that carries sperm and urine






32. 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






33. Not under a timeline - cow can not be sold as steak






34. 45-60 days after breeding; re-breed as required






35. 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.






36. 265-285 days






37. Superior genes are _______ to multiply






38. Sperm production






39. (FSH) causes egg to mature in females






40. Contains and regulates the temp of the testes for sperm production






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






42. Actual heat cycle (period)






43. Provide nourishment for the developing sperm






44. 336 days






45. Earlier you castrate a male - the easier it is on the animal. the longer you wait - death rates increase






46. When are steers and heifers weaned from bottle feeding?






47. 4-6 days






48. Contains and regulates the temp of the testes for sperm production






49. 1. sperm is not implanted in egg until hours after breeding. 2. fetal growth has not yet finished.






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