Exam (elaborations)
ANSC 4395 FINAL EXAM QUESTONS WITH COMPLETE ANSWERS
- Course
- Institution
ANSC 4395 FINAL EXAM QUESTONS WITH COMPLETE ANSWERS
[Show more]
Content preview
ANSC 4395 FINAL EXAM QUESTONS WITHCOMPLETE ANSWERS
Selection - -The practice of allowing certain individuals more opportunity to
reproduce than others.
Only means of making genetic improvement in a closed population.
Improvement made by increasing the frequency of desired genes.
Results of selection are predictable in magnitude and direction.
-Response to selection - -Progress resulting from selection is called
response.
Genetic change that occurs as a result of selection.
Ex. If environmental conditions have remained constant, the phenotypic
change should mirror the genetic change.
-selection differential - -the difference between the mean performance of
the selected individuals and the average of the entire herd.
-Generation Interval - -The length of time it takes to replace the members of
on generation in a herd.
Symbolized by: L
-Breeding Value - -An individual's phenotype is the result of its genetic
merit and the effect of the environment.
-Estimated Breeding Value (EBV) - -Actual breeding value of an individual is
never known.
Can be estimated from an individual's performance and the performance of
its relatives.
Addition of information from relatives will always increase confidence in an
estimate of breeding value.
-Individual's own performance - -Single most important price of into for
estimating breeding value.
Accuracy can be increased by measuring progeny or sibs.
Measuring relatives cannot take the place of measuring the individual itself
until numerous records on relatives have been obtained.
-Multiple records on an individual - -Some traits measured several times
during and animal's lifetime.
Ex. egg production, milk production, litter size, litter weight.
IF a trait is measured several times, each value should be used in an
estimate of breeding value.
-Sib information - -Almost any animal will have siblings.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Nursephil2023. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $8.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
82388 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now