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






2. 19-23 (21) days






3. Larger the cow - more milk is produced; smaller the cow - less milk is produced






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






5. 2 month growth cycle. stored in the epididymis of the bull






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






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






8. 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.






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






10. Luteolysis happens because of the ____________ hormone






11. Birthing process (termination of gestation)






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






13. Failure to have one testis (gonad) to descend






14. (male) pushes the testes upward toward the body for warmth or protection






15. Sperm is produced here






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






17. Actual heat cycle (period)






18. 1-2 days






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






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






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






22. Parturition is controlled by...






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






24. 10-37 (21) days






25. Head - neck - mid-piece - tail. genetic material - has an enzyme covering that allows it to penetrate the egg






26. When are dairy cattle dehorned?






27. Animal which has been castrated after puberty






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






29. 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.






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






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






32. 24 hours before end of estrus cycle






33. 1. seminiferous tubules - 2. sertoli cells - 3. leydid or interstitial cells






34. 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)






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






36. Why Dairy calves are fed powdered milk.






37. Produce testosterone. located between the seminiferous tubules






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






39. (male) pushes the testes upward toward the body for warmth or protection






40. 147 days






41. Scar tissue plugs up chambers of udder






42. 10-37 (21) days






43. Sperm is produced here






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






45. Produce testosterone. located between the seminiferous tubules






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






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






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






49. 114 days






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







Sorry!:) No result found.

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