Test your basic knowledge |

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






3. 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.






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






5. Not under a timeline - cow can not be sold as steak






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






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






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






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






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






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






12. 16-20 hours






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






14. Days which have decreasing daylight hours

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15. Animal which has been castrated after puberty






16. 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.






17. 147 days






18. 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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19. Not under a timeline - cow can not be sold as steak






20. 336 days






21. Animal which has been castrated after puberty






22. (FSH) causes egg to mature in females






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






24. 1-2 days






25. 114 days






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






27. 4-6 days






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






29. FEED






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






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






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






33. Allows extension of penis without fibro-elastic penis






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






35. Sperm production






36. What helps regulate spermatogenesis?






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






38. 26 hours after estrus begins






39. Days which have increasing daylight hours

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40. Superior genes are _______ to multiply






41. Sperm production






42. Important 'landmark' during palpation






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






44. Indicator of sperm production. the bigger the scrotal circumference the bigger volume of sperm because more seminal vesicles available to produce the sperm






45. ~60 days before calving






46. Parturition is controlled by...






47. Why does estrus happen before ovulation?






48. Sperm is produced here






49. 265-285 days






50. Scar tissue plugs up chambers of udder