hwchp10 - Name Homework 6 Chapter 10 ANSC 3500 Animal...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Name___________________________ Homework 6, Chapter 10 ANSC 3500 – Animal Breeding Due Tuesday, March 4, 2014 1. Given the phenotypic standard deviation (SDP) and heritability for the following traits, what is the standard deviation for breeding value (SDBV)? If breeding value were estimated from an individual’s own performance for one trait, what would be the accuracy of selection? Species Trait SDP Heritability SDBV Accuracy Beef Mature weight 80 lb .60 ______ ________ Dairy Milk Fat % 0.5% .50 ______ ________ Horse One mile trot 3.5 sec .45 ______ ________ Chicken No. eggs in 1 year 15 eggs .15 ______ ________ Swine No. pigs weaned 2.5 pigs` .12 ______ ________ Sheep Weaning weight 5 lb .30 ______ ________ 2. What is the expected rate of genetic gain for weaning weight in a beef cattle herd with the following characteristics and selection policies? Assume the phenotypic standard deviation for weaning weight is 40 lb and heritability is .30. Recall that for phenotypic selection, accuracy is the square root of heritability. Animals will be selected based on their own weaning weight with adjustments for age of dam and contemporary group.
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern