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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. Produce testosterone. located between the seminiferous tubules






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






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






4. 1-2 days






5. 14-19 (17) days






6. Actual heat cycle (period)






7. Failure to have both testis (gonads) descend






8. Male on one pin and female on other side






9. S-shaped inside body - relaxes to be exposed for breeding. Disadvantges: muscles weaken with age - cannot always hold it in - exposed to harsh outside conditions or stepped on.

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10. Duct through penis that carries sperm and urine






11. Allows extension of penis without fibro-elastic penis






12. 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






13. What helps regulate spermatogenesis?






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






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






16. Animal which has been castrated after puberty






17. Animal which has been castrated after puberty






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






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






20. Urinary calculi.






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






22. 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.






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






24. Provide nourishment for the developing sperm






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






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






27. 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.






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






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






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






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






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






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






34. 114 days






35. Superior genes are _______ to multiply






36. Birthing process (termination of gestation)






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






38. 16-20 hours






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






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






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






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

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43. 265-285 days






44. 45-60 days after breeding; re-breed as required






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






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






47. Urinary calculi.






48. (LH) causes female's egg to break (her period)






49. 1-3 days






50. Scar tissue plugs up chambers of udder