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






2. Male on one pin and female on other side






3. Sperm production






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






5. 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)






6. Castration tool which clamps down on the vans deferens. causes the sperm to not reach the penis to be ejaculated






7. 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.






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






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






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






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






12. Days which have increasing daylight hours

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






14. Provide nourishment for the developing sperm






15. Urinary calculi.






16. 14-19 (17) days






17. Why Dairy calves are fed powdered milk.






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






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






20. When are dairy cattle dehorned?






21. Duct through penis that carries sperm and urine






22. 14-19 (17) days






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






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






25. 45-60 days after breeding; re-breed as required






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






27. 2 month growth cycle. stored in the epididymis of the bull






28. 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.






29. Male on one pin and female on other side






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






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






32. Produce testosterone. located between the seminiferous tubules






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






34. Parturition is controlled by...






35. Luteolysis happens because of the ____________ hormone






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






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






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






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






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






41. 265-285 days






42. Organ of copulation - provides passageway for semen and urine - muscular organ characterized especially by its spongy - erectile tissue that fills with blood






43. (FSH) causes egg to mature in females






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






45. 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.






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






47. 30 hours after estrus begins






48. (FSH) causes egg to mature in females






49. Why does estrus happen before ovulation?






50. 2 month growth cycle. stored in the epididymis of the bull