10. You are the manager of a cow-calf operation in central Washington with 200 c
ID: 3513649 • Letter: 1
Question
10. You are the manager of a cow-calf operation in central Washington with 200 cows, and you want to trate your calving season within two months(April - May). Using the following chart, indicate your main management procedures: (1 pt, 0.2 pts each) a) What month are you going to artificially inseminate your cows? b) For the remaining open cows, you will use a clean-up bull What month would you retire the bul c) d) to achieve your goal of April -May calving season? How many bulls would you need to cover these remaining open cows (you have 200 cows in your herd, consider 60% got pregnant from AI)? Indicate the gestation length in beef cattle. What month(s) should you plan to wean your calves? Artificial e) Insemination d) Gestationlength: C) # of bulls: e) Weaning Calving (April - May) a) b)Explanation / Answer
Considering the average gestation period of cattle to be 283 days,
a) The artificial insemination can be done probably a month prior to normal breeding which is approximately 313 days prior to calving season. Hence, the proper time would be June- July of the previous year. However, it should be done in the Estrus (reproductively available) period of the female cattle.
b) Approximately 280 days prior to calving season would be correct for the mating which is in the months of July-August of the previous year.
c) 60% of 200= 120. Hence, the remaining 80 cows should be bred. A clean up bull, say, can breed with 40 females on an average. Hence, 2 clean up bulls are required.
d) The gestation length in beef cattle is approximately 283 days.
e) Calves are ideally weaned when they are 7 to 8 months old. Hence, the right time would be November - December.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.