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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. When are dairy cattle dehorned?






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






3. Duct through penis that carries sperm and urine






4. Largest dairy cow - largest udder - highly vascular - eat 40-50% dry matter (eat alot) - most total butterfat






5. What helps regulate spermatogenesis?






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






7. Failure to have both testis (gonads) descend






8. 1-2 days






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






10. 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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11. Luteolysis happens because of the ____________ hormone






12. ~60 days before calving






13. 10-37 (21) days






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






15. Implies the amount of estrogen production






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






17. Sperm is produced here






18. (from Jersey Islands in Great Britain) Smallest cow - least milk - highest butterfat %






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






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






21. 16-20 hours






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

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






24. 2 month growth cycle. stored in the epididymis of the bull






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






26. 4-6 days






27. Animal which has been castrated after puberty






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






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






30. Days which have increasing daylight hours

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






32. 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.






33. 147 days






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






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






36. 1-2 days






37. 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






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






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






40. 2 month growth cycle. stored in the epididymis of the bull






41. Why Dairy calves are fed powdered milk.






42. 45-60 days after breeding; re-breed as required






43. 19-23 (21) days






44. 1. need to be restricted in amt of grain - 2. no more than 70% of ration can be concentrates. 3. *Acidic acid has to be produced in order for milk synthesis to occur (30% forages)






45. 26 hours after estrus begins






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






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






48. 14-19 (17) days






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






50. Urinary calculi.







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


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