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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. Can survive ~7 days in cow. vast majority <48 hours






2. Can survive ~7 days in cow. vast majority <48 hours






3. Failure to have both testis (gonads) descend






4. Provide nourishment for the developing sperm






5. 19-23 (21) days






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






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






8. Allows extension of penis without fibro-elastic penis






9. Birthing process (termination of gestation)






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






11. Examine accessory glands - also to know how big the pelvic opening is->heritable->relates to how much dystocia that bull's daughter has






12. Luteolysis happens because of the ____________ hormone






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






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






15. ~60 days before calving






16. Implies the amount of estrogen production






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






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

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






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






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






22. Actual heat cycle (period)






23. 16-20 hours






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






25. Actual heat cycle (period)






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






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






28. 1-3 days






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






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






31. 30-38 hours after estrus cycle begins






32. 114 days






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






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.






35. ~60 days before calving






36. Can produce 200 calves naturally (~100 bulls) - top 1-2% will grade like him. everything left to chance if no AI performed






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






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






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






40. Days which have increasing daylight hours

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41. 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.






42. Produce testosterone. located between the seminiferous tubules






43. To remove/separate testicles from animal's body before animal reaches puberty






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

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45. Days which have decreasing daylight hours

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46. Produce testosterone. located between the seminiferous tubules






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






48. 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






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






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







Sorry!:) No result found.

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