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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. 4-6 days






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






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






5. 265-285 days






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






7. 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.






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






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






10. 2 month growth cycle. stored in the epididymis of the bull






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






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






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






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






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






16. 1. visual evaluation - 2. scrotal circumference - 3. penis and prepuce observation - 4. rectal palpation - 5. libido test - 6. semen evaluation






17. Allows extension of penis without fibro-elastic penis






18. Urinary calculi.






19. FEED






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






21. Days which have increasing daylight hours

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22. 30-38 hours after estrus cycle begins






23. Failure to have both testis (gonads) descend






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






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






26. 1-2 days






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






28. 1. visual evaluation - 2. scrotal circumference - 3. penis and prepuce observation - 4. rectal palpation - 5. libido test - 6. semen evaluation






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






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






31. 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






32. Constitute 50-90% of the volume of the ejaculate. (3 glands total: seminal vesicles - prostate gland - cowper's gland)






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






34. ~60 days before calving






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






36. (switzerland) 2nd in size and milk production - most muscle -






37. Provide nourishment for the developing sperm






38. Allows extension of penis without fibro-elastic penis






39. 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






40. Failure to have both testis (gonads) descend






41. Help to signal hormone levels which we need both in the brain right next to each other.






42. Sperm is produced here






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






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






45. Important 'landmark' during palpation






46. (FSH) helps to regulate puberty - needed every day - stimulates the sertoli cells to produce nutrients for the sperm






47. 265-285 days






48. 30 hours after estrus begins






49. Animal which has been castrated after puberty






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