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






2. Implies the amount of estrogen production






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






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






5. Head - neck - mid-piece - tail. genetic material - has an enzyme covering that allows it to penetrate the egg






6. Superior genes are _______ to multiply






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






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






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






10. 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.






11. Luteolysis happens because of the ____________ hormone






12. 45-60 days after breeding; re-breed as required






13. What about the sperm for a bull which has been castrated but still has testicles?






14. 1-3 days






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






16. Gonadotropic (GnRH) is (FSH and LH). Follical Stimulating (FSH) and Lutinizing Hormone (LH).






17. 1-2 days






18. Provide nourishment for the developing sperm






19. 4-6 days






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






21. Male on one pin and female on other side






22. Sperm production






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






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






25. 30-38 hours after estrus cycle begins






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






27. 30 hours after estrus begins






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






29. 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.






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

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31. Actual heat cycle (period)






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






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






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






35. 24 hours before end of estrus cycle






36. Cleans and lubricates the urethra ahead of the sperm. (if not - the urine in the urethra has a high salt content and would cause sperm to rupture and die)






37. (FSH) causes egg to mature in females






38. 283 days






39. ~305 days (altough often longer due to breeding difficulties)






40. Male on one pin and female on other side






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






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






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






44. Way to know everything is alright with the breeding male






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






46. 265-285 days






47. Urinary calculi.






48. Milk made by mother which includes antibodies for the calf. MUST be given to the calf within the first 24 hrs of life. also provides calf with energy stores. effectiveness lasts from 4-8 months of age.






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






50. When are dairy cattle dehorned?