319 What is the BEST animal

319 What is the BEST animal - 2. Physical environment...

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What is the BEST animal? Depends upon: 1. What traits are of primary importance, 2. what phenotypes are most desirable for those traits, 3. what genotype produces the best phenotype in the selected environment. SYSTEM = Management Scheme = Farm All livestock producers have differing systems (management). Rarely will the exact same animal excel in more than a few, select management schemes. Even within a single breed, specific breed-types do better in specific management programs. Most systems have at least four components: 1. Animals represent the genotype.
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Unformatted text preview: 2. Physical environment environmental factors beyond human control climate, heat, rainfall, etc. 3. Fixed resources and management size of operation, feeding program, health care, etc. 4. Economics costs vs. returns. ** 2, 3, 4 are all environmental effects on phenotype. It should be clear that the components within a system interact with each other to influence the phenotype/performance of the individual animals. Therefore, another element is added to the formula for phenotype: P = G + E + GxE Genotype by Environment Interactions:...
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This note was uploaded on 01/16/2012 for the course ANSCI 319 taught by Professor Donhenneke during the Fall '11 term at Tarleton.

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319 What is the BEST animal - 2. Physical environment...

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