ANSC 1401 final sam jackson
effect on selection process - ANS-more offspring is greater opportunity for genetic
improvement
heterosis - ANS-an increase in the performance of hybrids over the average
performance of the parents
animal breeding industry structure - ANS-seedstock -----> commercial----> animal
products ---> commercial----> seedstock
genetic application rules - ANS-1. crossbred animals tend to preform better than their
non-related purebreds; and non related purebreds tend to preform better than inbred
purebreds
2. animals tend to resemble their parents and close relatives
generation interval - ANS-the average age of the parents when offspring are born or the
time required to replace a generation
genetic tools - ANS-technologies which can increase the contribution of genetics from a
superior animal beyond their normal lifetime capacity
inbreeding - ANS-the mating of relatives which results in increasing the number of
homozygous gene combinations
cross breeding - ANS-the mating of different breeds results in increasing the number of
heterozygous gene combinations (heterosis)
factors influencing reproduction - ANS-A. physiology of the animal
B. genetic potential
C. nutrition
D. season of the year
E. other environmental factors
species differences - ANS-management, environment, and goals, vary by species
testis - ANS-primary sex organ of the male
effect on selection process - ANS-more offspring is greater opportunity for genetic
improvement
heterosis - ANS-an increase in the performance of hybrids over the average
performance of the parents
animal breeding industry structure - ANS-seedstock -----> commercial----> animal
products ---> commercial----> seedstock
genetic application rules - ANS-1. crossbred animals tend to preform better than their
non-related purebreds; and non related purebreds tend to preform better than inbred
purebreds
2. animals tend to resemble their parents and close relatives
generation interval - ANS-the average age of the parents when offspring are born or the
time required to replace a generation
genetic tools - ANS-technologies which can increase the contribution of genetics from a
superior animal beyond their normal lifetime capacity
inbreeding - ANS-the mating of relatives which results in increasing the number of
homozygous gene combinations
cross breeding - ANS-the mating of different breeds results in increasing the number of
heterozygous gene combinations (heterosis)
factors influencing reproduction - ANS-A. physiology of the animal
B. genetic potential
C. nutrition
D. season of the year
E. other environmental factors
species differences - ANS-management, environment, and goals, vary by species
testis - ANS-primary sex organ of the male
