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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. Scar tissue plugs up chambers of udder






2. 1. brain function - 2. blood flow - 3. willing female






3. 30 hours after estrus begins






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






5. (FSH) causes egg to mature in females






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






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






8. 30 hours after estrus begins






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






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

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






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






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






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






15. Days which have decreasing daylight hours

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






17. Sperm is produced here






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






19. Can produce 200 calves naturally (~100 bulls) - top 1-2% will grade like him. everything left to chance if no AI performed






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






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






22. 2 month growth cycle. stored in the epididymis of the bull






23. 2 month growth cycle. stored in the epididymis of the bull






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






25. Boars and stallions-> deliver semen directly into the cervix. bulls and rams-> deliver semen into the vagina.






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






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






28. Important 'landmark' during palpation






29. FEED






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






31. 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.






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






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






34. Produce testosterone. located between the seminiferous tubules






35. 16-20 hours






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






37. (male) definition: duct located outside of the testes. 3 parts: head - body - tail. 4 Functions:concentrate sperm - store sperm - transport sperm - site of sperm maturation. entire process takes ~40-60 days






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






39. ~60 days before calving






40. 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)






41. 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






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






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






44. 336 days






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






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






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






48. Boars and stallions-> deliver semen directly into the cervix. bulls and rams-> deliver semen into the vagina.






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






50. 30-38 hours after estrus cycle begins