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






2. 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.






3. Scar tissue plugs up chambers of udder






4. ~305 days (altough often longer due to breeding difficulties)






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






6. Urinary calculi.






7. Way to know everything is alright with the breeding male






8. Check feet and legs - look for masculine traits in build such as crest and muscling






9. Allows extension of penis without fibro-elastic penis






10. 336 days






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






12. Urinary calculi.






13. Parturition is controlled by...






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






15. 265-285 days






16. Pulls sperm and egg together - gets body ready for pregnany - stimulates growth cells - develops mammary glands - starts to deposit fat.






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






18. 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






19. 10-37 (21) days






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






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






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






23. Actual heat cycle (period)






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






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






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






27. Failure to have both testis (gonads) descend






28. 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.






29. Provide nourishment for the developing sperm






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






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






32. Superior genes are _______ to multiply






33. 26 hours after estrus begins






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






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






36. Birthing process (termination of gestation)






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






38. Produce testosterone. located between the seminiferous tubules






39. Important 'landmark' during palpation






40. 283 days






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






42. Why Dairy calves are fed powdered milk.






43. 147 days






44. Start of the reproductive tract for the female. located outside of the body






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






46. 30 hours after estrus begins






47. 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.






48. 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.






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






50. What helps regulate spermatogenesis?