1. Biotechnology in Animal Science
Animal Science II
Biotechnology in Animal Science

2. Objective
Describe the use of biotechnology to improve animal health, productivity and reproduction

3. What is Biotechnology?
The altering of the genetic makeup of plants and animals

4. Improving Animal Health
Improved Diagnostic testing
Monoclonal antibodies
Pregnancy testing
Brucellosis
Treatment for disease
Caused by viruses and bacteria
Genetically engineered vaccines
Not live disease causing agents

5. Improving Productivity
Transgenic
Animals that have been genetically engineered
DNA has been shared between organisms
Gene transfer
Can be used to produce medicines for humans

6. Improving Productivity
Somatotrophins
Hormones produced by the pituitary gland
Circulates in the blood
Directs growth and fat deposits
Regulates milk production in females

7. Somatotrophins Examples: bST Bovine somatotrophin Increases weight
Leaner meat

8. Somatotrophins pST Porcine somatotrophin Increases feed efficiency
Reduces fat

9. 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)

10. Improving Reproduction
Cloning
Makes animals have identical genetics
Embryo splitting
Nuclear transfer
Most rapidly increases uniformity in a particular species of animal

11. Assignment
Complete the questions on page 235 in the Modern Livestock and Poultry Production textbook after reading the chapter on “Biotechnology in Livestock Production”