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1. Animal Breeding scientific field that uses the principles of genetics to aid in the
improvement of livestock
2. Robert Bakewell Father of animal breeding
3. Shorthorns one of the first organized breeds of livestock - 1580
4. Breed that was highly re- Shorthorns
lated to one or two bulls
that were highly adver-
tised:
5. Sought individuals that Robert Bakewell
would strengthen his
heard. Leased out males
to neighbors to identi-
fy animals that produced
superior offspring. Mated
the best to the best with
little regard to ancestry.
6. Gregor Mendel studied genetics of the garden pea
7. established basic genetic Gregor Mendel
principals that are still ac-
cepted today
8. Population Genetics Branch of genetics which deals with the factors that affect the genetic
structure of populations.
Study of allele frequency distribution and change.
9. Statistic estimate of a peramider
10.
, ANSC 4395, Animal breeding and Genetics, Exam 1
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Dr. Sewell and Sir Ronald pioneers of population genetics
Fisher Did the "paper work"
11. Dr. Jay Lush "Father of Modern Animal Breeding"
Applied population genetics to animals
12. Heterosis hybrid vigor
13. Established principles of Dr. Jay Lush
selection, the use of
inbreeding to conserve
genes of some individ-
uals, and crossbreeding
systems to take advan-
tage of hybrid vigor.
14. The primary goal for ani- identify animals with desirable genes and increase the frequency of
mal breeders: those genes
15. Two fundamental ques- 1. What is the best animal
tions 2. How do you breed an animal so offspring will be the best or better
than the parents
16. systems approach objective means of determining the best animal.
Requires detailed knowledge of traits of importance and how perfor-
mance in these traits interact with such factors as the environment,
management policies, costs, and revenues.
Varies within species and breed and also depends on a breeder's
place within that industry.
17. System a group of interdependent component parts
18. Components of a system genotypes, physical environment, fixed resources, management,
and economics