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






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






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






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






5. Provide nourishment for the developing sperm






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






7. Birthing process (termination of gestation)






8. 114 days






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






10. Why Dairy calves are fed powdered milk.






11. Produce testosterone. located between the seminiferous tubules






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






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






14. 14-19 (17) days






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






16. 19-23 (21) days






17. Why Dairy calves are fed powdered milk.






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






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






20. 16-20 hours






21. When she is pregnant in her last trimester because she needs the energy to carry around and deliver the calf. and when the calf is born because the cow needs the fat to be deposit it into her milk for the calf's energy stores.






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






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






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






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






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






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






28. Hold the penis in the bulls body when not in use. releases penis before ejaculation or urination.






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






30. 2 month growth cycle. stored in the epididymis of the bull






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






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






33. 10-37 (21) days






34. Luteolysis happens because of the ____________ hormone






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






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






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






38. 45-60 days after breeding; re-breed as required






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






40. Animal which has been castrated after puberty






41. (FSH) causes egg to mature in females






42. 1-2 days






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






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






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






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






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






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






49. Superior genes are _______ to multiply






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