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






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






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






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






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






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






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






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






9. Sperm is produced here






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






11. Can survive ~7 days in cow. vast majority <48 hours






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






13. 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






14. (FSH) helps to regulate puberty - needed every day - stimulates the sertoli cells to produce nutrients for the sperm






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






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






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






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






19. Sperm is produced here






20. Luteolysis happens because of the ____________ hormone






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






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






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






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






25. Allows extension of penis without fibro-elastic penis






26. 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)






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






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






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






30. What helps regulate spermatogenesis?






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






32. Scar tissue plugs up chambers of udder






33. 4-6 days






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






35. Produce testosterone. located between the seminiferous tubules






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






37. Scar tissue plugs up chambers of udder






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






39. Implies the amount of estrogen production






40. Can survive ~7 days in cow. vast majority <48 hours






41. Animal which has been castrated after puberty






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






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






44. Sperm production






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






46. Reproduction. more offspring leads to more feed costs - but is offset by reproduction numbers






47. 26 hours after estrus begins






48. 283 days






49. Urinary calculi.






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