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Animal Breeding exam 1

Terms in this set (52)

What is the best animal?
structure, growth, performance, repro, temperament, health status, phenotype, adaptability
trait
an observable or measurable characteristic of an individual
observable
Appearance (coat color, horn, frame size)
measurable
performance (WW, YW, SC, milk, YG, QG)

SC: puberty, fertility of daughters
phenotype
observe category or measure of performance for a trait of an individual
(50 in, 40 cm, black, poll, 565 lbs.)
genotype
genetic makeup of an individual
P = ?
P= G + e

(phenotype = genotype + environment)
Biological type
similar genotypes for traits of interest

-subtropically adapted
-meat types
-wool types
System
-genotype
-physical environment-climate, soils
-fix resources & management: size, labor, supplementation
-economics
interactions
effect of one component depends on another component
G x E
difference in performance between two or more genotype changes from environment to environment

-must have at least two genotypes & two environments
breeds
race of animals within a species

-common origin
-similar characteristics
breeding objectives
-carcass characteristics
-replacement females
-milk quality
-wool production
population
group of intermating individuals
selection
which animals become parents
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