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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. 114 days






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






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






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






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






6. Scar tissue plugs up chambers of udder






7. What helps regulate spermatogenesis?






8. 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)






9. 10-37 (21) days






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






11. 14-19 (17) days






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






13. 1-2 days






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






15. Allows extension of penis without fibro-elastic penis






16. 336 days






17. Birthing process (termination of gestation)






18. What helps regulate spermatogenesis?






19. Indicator of sperm production. the bigger the scrotal circumference the bigger volume of sperm because more seminal vesicles available to produce the sperm






20. Urinary calculi.






21. 30 hours after estrus begins






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






23. Birthing process (termination of gestation)






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






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






26. Milk ~305 days - dry 60 days prior to calving






27. Days which have increasing daylight hours

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28. 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.






29. 26 hours after estrus begins






30. Implies the amount of estrogen production






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






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






33. Animals which have many estrous periods per year (ex: cow - sow)






34. 19-23 (21) days






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

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






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






38. 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.






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






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






41. 26 hours after estrus begins






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






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






44. Days which have decreasing daylight hours

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45. Sperm production






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






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






48. 45-60 days after breeding; re-breed as required






49. 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






50. 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.