A rancher runs a closed herd of breedin cattlehe keeps and

Reference no: EM13625529

A rancher runs a closed herd of breedin cattle.He keeps and breeds the top 3%of bull calves based on individual performance for yearling weight. His sires avg 3 years of age when their offspring are born. He is studying two female replacement strategies:

1. Saving the top 20% of heifers based on YW (Lf=6.2 years)

2. Saving the top 60% based on YW (Lf=3.2years)

If h sq YW=.05, and variability pyw=60 lb, calculate the expected rate of genetic change in yearling weight for each strategy. What elements of the key equation is the rancher experimenting with? What element appears to be more important?

Reference no: EM13625529

Questions Cloud

The block has a constant acceleration and is pulled by : in 0.669 s a 8.00-kg block is pulled through a distance of 3.75 m on a frictionless horizontal surface starting from

In study hall 3 of the 16 girls have red hair and 2 of the : in study hall 3 of the 16 girls have red hair and 2 of the 15 boys have red hair. what is the probability of selecting

What will be the most probable crystal structure for this : the silver medal awarded to the second place winner in 2002 salt lake city winter olympics had a composition of 92.5 at

In terms of i0 at the peak of the central maximum what is : monochromaticlight of wavelength lambda 620nm from a distant sources passes through a slit 0.450 mm wide. the

A rancher runs a closed herd of breedin cattlehe keeps and : a rancher runs a closed herd of breedin cattle.he keeps and breeds the top 3of bull calves based on individual

Determine the value of the tubes angular velocity w if : a simple sling can be built by placing a projectile in a tube and then spinning it. consider a simple model in which

One article reports that in a sample of 355 calves less : one article reports that in a sample of 355 calves less than 4 days old 106 had lesions on their bronchial lymph nodes

A brinell hardness measurement using a 10-mm diameter : a brinell hardness measurement using a 10-mm diameter indenter and 300 kg load produced an indentation 1.5 mm in

What gain in gravitational potential energy does the launch : one of your summer lunar space camp activities is to launch a 1130-kg rocket from the surface of the moon. you are a

User Account

All Pages