× Didn't find what you were looking for? Ask a question
  
  
Top Posters
Since Sunday
j
7
s
7
6
e
6
6
b
6
f
6
s
6
6
j
5
n
5
p
5
New Topic  
magnussd magnussd
wrote...
Posts: 6
Rep: 0 0
7 years ago
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)
Read 1108 times
15 Replies

Related Topics

Replies
wrote...
7 years ago
I seem to have found your question in this booklet. See if it helps Nerd Face
Attached file
You must login or register to gain access to this attachment.
magnussd Author
wrote...
7 years ago
what page?
wrote...
Educator
7 years ago
33
magnussd Author
wrote...
7 years ago
I have checked over and over again. I need it put here now cause I've reached my download limit.
wrote...
Donated
Trusted Member
7 years ago
if you downloaded the file once chances are its still on your computer in the download folder
magnussd Author
wrote...
7 years ago Edited: 7 years ago, magnussd
alright found the table but that doesn't help me with the math

Post Merge: 7 years ago

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.
wrote...
Educator
7 years ago
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?
wrote...
2 years ago
Thank you Slight Smile
wrote...
A year ago
thank you
wrote...
3 months ago
Thank you
Post Merge: 3 months ago

very nice
Anonymous
wrote...
3 months ago
Try this for an answer
Attached file(s)
Thumbnail(s):
You must login or register to gain access to these attachments.
wrote...
3 months ago
Thank you
wrote...
2 months ago
Thanks!
  New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  177 People Browsing
 459 Signed Up Today
Related Images
  
 650
  
 749
  
 416
Your Opinion
Where do you get your textbooks?
Votes: 212