reading assignment 2

reading assignment 2 - further processing with less...

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Dr. Emmert Intro to Poultry Science 04 September 2006 Reading Section II 1. Change in a population mean for a quantitive trait can be brought about by selecting the best individuals to breed the next generation. 2. The success of breeding programs depends on the variation within the quantitive traits, the selection pressure, and the accuracy of selection. 3. Selection intensity is the percent of the population selected to breed the next generation. The more intense the selection, the smaller the percentage will be that is allowed to reproduce and vise versa. 1. Broilers are in an age-for-weight market while turkeys are in n weight-for-age market. Since broilers must fall within a narrow weight range, they are marketed at an earlier point than turkeys. Turkey carcasses must be reconstructed with
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Unformatted text preview: further processing, with less pressure on fast carcass development compared to broiler carcasses. 1. Concerns for poultry breeding programs in the future include: decrease in genetic variation, ascites, sudden death syndrome, reduced immune systems, tibial dyschondroplasia, reduced reproduction performance, and metabolic disturbances. Furthermore, meat quality, texture, and flavor could become problematic along with bird livability. Hysterical behavior and reproductive success will also be important area of concerns in the future. 2. Possible benefits of molecular technology in the future include: improving growth and feed conversion, marker assisted selection, reducing diseases and disorders, acceptance of consumer issues, and the finding of new genes....
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