Transcript Animal Science II

Animal Science II
Biotechnology in Animal Science
Objective
Describe the
use of biotechnology to improve
animal health, productivity and reproduction
What is Biotechnology?
The altering
animals
of the genetic makeup of plants and
Improving Animal Health
Improved Diagnostic testing
Monoclonal
antibodies
 Pregnancy
testing
 Brucellosis
Treatment for
Caused
disease
by viruses and bacteria
Genetically engineered vaccines
Not
live disease causing agents
Improving Productivity
Transgenic
Animals
that have been genetically engineered
DNA has been shared between organisms
 Gene
Can
transfer
be used to produce medicines for humans
Improving Productivity
Somatotrophins
Hormones
produced by the pituitary gland
Circulates in the blood
Directs growth and fat deposits
Regulates milk production in females
Somatotrophins
Examples:
bST
Bovine
somatotrophin
Increases weight
Leaner meat
Somatotrophins
pST
Porcine
somatotrophin
Increases feed efficiency
Reduces fat
Improving Reproduction
Embryo Transfer
Performing
a superovulation of a female
Fertilizing the eggs
Removing the fertilized embryos
Placing live embryos in other animals (of the same
species)
Improving Reproduction
Cloning
Makes
animals have identical genetics
 Embryo
splitting
 Nuclear transfer
Most
rapidly increases uniformity in a
particular species of animal
Assignment
Complete
the questions on page 235 in the
Modern Livestock and Poultry Production
textbook after reading the chapter on
“Biotechnology in Livestock Production”