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Title: A rancher runs a closed herd of breeding cattle. He normally keeps and breeds the top 3% of his bull Post by: magnussd on May 31, 2015 1. A rancher runs a closed herd of breeding cattle. He normally keeps and breeds the top 3% of his bull calves based on individual performance for yearling weight (YW). His sires average three years of age when their offspring are born. He is studying two female replacement strategies:
(Hint: Use the selection intensity chart in your book or slides) • Saving the top 20% of his heifers based on YW (Lf = 6.2 years) • Saving the top 60% based on YW (Lf = 3.2years) a. If h2YW = 0.5, and σPYW = 60 lb, calculate the expected rate of genetic change in yearling weight for each strategy. (2 pts) b. What elements of the key equation is the rancher experimenting with? (1pt) c. What element appears to be more important? (1pt) Title: A rancher runs a closed herd of breeding cattle. He normally keeps and breeds the top 3% of his bull Post by: Kellman on May 31, 2015 I seem to have found your question in this booklet. See if it helps :nerd:
Title: A rancher runs a closed herd of breeding cattle. He normally keeps and breeds the top 3% of his bull Post by: magnussd on May 31, 2015 what page?
Title: A rancher runs a closed herd of breeding cattle. He normally keeps and breeds the top 3% of his bull Post by: bio_man on May 31, 2015 33
Title: A rancher runs a closed herd of breeding cattle. He normally keeps and breeds the top 3% of his bull Post by: magnussd on May 31, 2015 I have checked over and over again. I need it put here now cause I've reached my download limit.
Title: A rancher runs a closed herd of breeding cattle. He normally keeps and breeds the top 3% of his bull Post by: biolove on May 31, 2015 if you downloaded the file once chances are its still on your computer in the download folder
Title: A rancher runs a closed herd of breeding cattle. He normally keeps and breeds the top 3% of his bull Post by: magnussd on Jun 1, 2015 alright found the table but that doesn't help me with the math
Not helpful. In fact the table that you show isn't even close to what is needed. Very frustrated to need help on a formula but now one seems to be able to help. Look I need help otherwise I wouldn't be here. Title: Re: A rancher runs a closed herd of breeding cattle. He normally keeps and breeds the top 3% of his Post by: bio_man on Jun 29, 2015 Not helpful. In fact the table that you show isn't even close to what is needed. Very frustrated to need help on a formula but now one seems to be able to help. Look I need help otherwise I wouldn't be here. Could you update us on what you did / answered? Title: Re: A rancher runs a closed herd of breeding cattle. He normally keeps and breeds the top 3% of his ... Post by: cortcort9 on Jun 16, 2020 Thank you :)
Title: Re: A rancher runs a closed herd of breeding cattle. He normally keeps and breeds the top 3% of his ... Post by: Helpless2733 on Mar 22, 2021 thank you
Title: Re: A rancher runs a closed herd of breeding cattle. He normally keeps and breeds the top 3% of his ... Post by: biolove on Oct 12, 2022 Try this for an answer
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