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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. Way to know everything is alright with the breeding male






2. 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.






3. Why does estrus happen before ovulation?






4. Urinary calculi.






5. Sperm production






6. 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.






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






8. 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.






9. (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






10. 265-285 days






11. 283 days






12. Implies the amount of estrogen production






13. What about the sperm for a bull which has been castrated but still has testicles?






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






15. Why does estrus happen before ovulation?






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






17. Days which have decreasing daylight hours

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






19. 1-3 days






20. 45-60 days after breeding; re-breed as required






21. What about the sperm for a bull which has been castrated but still has testicles?






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






23. 16-20 hours






24. Important 'landmark' during palpation






25. (FSH) causes egg to mature in females






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






27. Luteolysis happens because of the ____________ hormone






28. Allows extension of penis without fibro-elastic penis






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






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






31. Sperm production






32. 45-60 days after breeding; re-breed as required






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






34. When are dairy cattle dehorned?






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






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






37. Allows extension of penis without fibro-elastic penis






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






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






40. Urinary calculi.






41. 19-23 (21) days






42. Days which have increasing daylight hours

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






44. (from Jersey Islands in Great Britain) Smallest cow - least milk - highest butterfat %






45. Cycle that lasts weeks (ovulation->hormone cycles->ovulation)






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






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






48. 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






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






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