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Animal Science II

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Animal Science II

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    1. 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 209 in the Modern Livestock and Poultry Production textbook after reading the chapter on “Biotechnology in Livestock Production”

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