Stutts - ANSC 4395 Breeding & Genetics
- Test One Questions And Answers With
Verified Solutions Latest Updated 2024
Animal Breeding - ANSWER✔✔scientific field that uses principles of genetics to
aid in the improvement of livestock
Robert Bakewell - ANSWER✔✔"Father of Animal Breeding"
Creating the first progeny test of sorts - leased males to neighbors to find superior
animals and mated best to best without regarding ancestry.
Shorthorns - ANSWER✔✔One of the first organized breeds of livestock - 1580
Began keeping records in 1750
Highly related to one or two bulls
Gregor Mendel - ANSWER✔✔19th Century - studied genetics of garden peas
established basic principles that are still accepted today
Published in obscure journal and wasn't widely known until 20th century
Population Genetics - ANSWER✔✔branch of genetics which deals with the
factors that affect the genetic structure of populations
study of allele frequency distribution and change
Dr. Sewell Wright & Sir Ronald Fisher
Dr. Jay Lush - ANSWER✔✔"Father of Modern Animal Breeding"
extended work of Wright & Fisher to design programs for farm animals
, Established principles of selection, the use of inbreeding to conserve genetics, and
crossbreeding for hybrid vigor
The Future of Genetics - ANSWER✔✔genetically engineered compounds
gene therapy
gene splicing
DNA transfer
Primary goal of animal breeders - ANSWER✔✔identify animals with desirable
genes and increase the frequency of those genes
The best animal - ANSWER✔✔based on opinion of those who are using the
animals
- lab = show winner or best retriever
- cattle = cutability/ %muscle/ quality grade
Systems Approach - ANSWER✔✔More objective means of determining the best
animal, detailed knowledge of traits of importance and how performance with
those traits interact with the environment, etc.
System - ANSWER✔✔a group of interdependent component parts
ex: combustion engine, corporation, family
Animal - Systems Approach - ANSWER✔✔characteristic genotype(s), may be
more than one
ex. small size, low feed intake, low production,
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