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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. Important 'landmark' during palpation






2. 19-23 (21) days






3. 114 days






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






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






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






7. 14-19 (17) days






8. 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.






9. 1-3 days






10. Produce testosterone. located between the seminiferous tubules






11. Birthing process (termination of gestation)






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






13. Provide nourishment for the developing sperm






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






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






16. 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.






17. (FSH) causes egg to mature in females






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

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19. What helps regulate spermatogenesis?






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






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






22. Luteolysis happens because of the ____________ hormone






23. 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.






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






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






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






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






28. 283 days






29. Sperm is produced here






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






31. (FSH) helps to regulate puberty - needed every day - stimulates the sertoli cells to produce nutrients for the sperm






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






33. Superior genes are _______ to multiply






34. BST given to dairy cattle makes the mammary gland more persistent - helps produce more milk. good as Long-term because it does not cause cow to bulk up - provides more milk/cow Which means less cows needed - less cows need to be given feed - lower co






35. Days which have increasing daylight hours

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36. (FSH) helps to regulate puberty - needed every day - stimulates the sertoli cells to produce nutrients for the sperm






37. 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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38. 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.






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






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






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






42. Animal which has been castrated after puberty






43. Important 'landmark' during palpation






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






45. Actual heat cycle (period)






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






47. Days which have decreasing daylight hours

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






49. Superior genes are _______ to multiply






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