Ansc 4395 exam 1 with complete solutions
2024/2025
Animal Breeding - ANSWER✔️ ✔-The
️ science of using the principles of genetics
to make improvement in a livestock species
Robert Bakewell - ANSWER✔️ ✔-"Father
️ of animal breeding"
Leased out males
Mate the 'best of the best'
shorthorn cattle - ANSWER✔️
✔-First
️ organized breed of livestock 1580
Gregor Mendel - ANSWER✔️ ✔-Father
️ of genetics
Established basic genetic principles
population genetics - ANSWER✔️ ✔-Branch
️ of genetics which deals with the
factors that affect the genetic structure of population
Dr. Jay lush - ANSWER✔️ ✔-"Father
️ of Modern Animal Breeding"
Established principle of selection, use of inbreeding, crossbreeding to make
hybrid vigor
Primary goal of animal breeders - ANSWER✔️ ✔-identify
️ animals with desirable
genes and increase the frequency of those genes
What is the best animal? - ANSWER✔️ ✔-Lab-show
️ winner or best retriever
Cattle- cutability/ %muscle or quality grade
Dairy-most milk or best udder, feet, and legs
EVERYONE HAS THEIR OWN OPINION
, system approach - ANSWER✔️
✔-Determining
️ the best animal
System - ANSWER✔️
✔-Group
️ of interdependent component part
animal - ANSWER✔️
✔-Characteristics
️ genotype, may be more than one
physical environment - ANSWER✔️ ✔-Elements
️ of environment over which
humans exert little or no control
fixed resources - ANSWER✔️ ✔-Size
️ of the farm
Ability to grow supplementary feeds
Available labor
Management - ANSWER✔️ ✔-Policies
️ implemented by the farmer — feeding,
healthcare, length of time an animal is on the farm
Economics - ANSWER✔️ ✔-Costs
️ of farm inputs like feed, labor, and supplies
and the prices of farm outputs.
Traits - ANSWER✔️
✔-Observable
️ or measurable characteristic of an animal
Phenotype - ANSWER✔️ ✔-Observed
️ category or measured level of performance
for a trait in an individual
environmental effects - ANSWER✔️
✔-Effects
️ that external factors have on
animal performance
Biological Type - ANSWER✔️ ✔-a
️classification for animals with similar
genotypes for traits of interest
interaction - ANSWER✔️ ✔-a️relationship in which the effect of one factor
depends on another factor
Genotype by Environment (G x E) Interaction - ANSWER ✔️✔-A️ dependent
relationship between genotypes and environments in which the difference in
performance between two (or more) genotypes changes from environment to
environment
2024/2025
Animal Breeding - ANSWER✔️ ✔-The
️ science of using the principles of genetics
to make improvement in a livestock species
Robert Bakewell - ANSWER✔️ ✔-"Father
️ of animal breeding"
Leased out males
Mate the 'best of the best'
shorthorn cattle - ANSWER✔️
✔-First
️ organized breed of livestock 1580
Gregor Mendel - ANSWER✔️ ✔-Father
️ of genetics
Established basic genetic principles
population genetics - ANSWER✔️ ✔-Branch
️ of genetics which deals with the
factors that affect the genetic structure of population
Dr. Jay lush - ANSWER✔️ ✔-"Father
️ of Modern Animal Breeding"
Established principle of selection, use of inbreeding, crossbreeding to make
hybrid vigor
Primary goal of animal breeders - ANSWER✔️ ✔-identify
️ animals with desirable
genes and increase the frequency of those genes
What is the best animal? - ANSWER✔️ ✔-Lab-show
️ winner or best retriever
Cattle- cutability/ %muscle or quality grade
Dairy-most milk or best udder, feet, and legs
EVERYONE HAS THEIR OWN OPINION
, system approach - ANSWER✔️
✔-Determining
️ the best animal
System - ANSWER✔️
✔-Group
️ of interdependent component part
animal - ANSWER✔️
✔-Characteristics
️ genotype, may be more than one
physical environment - ANSWER✔️ ✔-Elements
️ of environment over which
humans exert little or no control
fixed resources - ANSWER✔️ ✔-Size
️ of the farm
Ability to grow supplementary feeds
Available labor
Management - ANSWER✔️ ✔-Policies
️ implemented by the farmer — feeding,
healthcare, length of time an animal is on the farm
Economics - ANSWER✔️ ✔-Costs
️ of farm inputs like feed, labor, and supplies
and the prices of farm outputs.
Traits - ANSWER✔️
✔-Observable
️ or measurable characteristic of an animal
Phenotype - ANSWER✔️ ✔-Observed
️ category or measured level of performance
for a trait in an individual
environmental effects - ANSWER✔️
✔-Effects
️ that external factors have on
animal performance
Biological Type - ANSWER✔️ ✔-a
️classification for animals with similar
genotypes for traits of interest
interaction - ANSWER✔️ ✔-a️relationship in which the effect of one factor
depends on another factor
Genotype by Environment (G x E) Interaction - ANSWER ✔️✔-A️ dependent
relationship between genotypes and environments in which the difference in
performance between two (or more) genotypes changes from environment to
environment
