منابع مشابه
Minimizing losses in poultry breeding and production: how breeding companies contribute to poultry welfare
The modern poultry industry has a remarkable record in reducing mortality, applying a combination of effective disease control, adequate nutrition, good husbandry and genetic selection. Primary breeders, specialized in the adaptation of layers, broilers and turkeys to changing demands of a global food market, have made three major contributions in the past: (1) eradication of vertically transmi...
متن کاملPoultry genetics and breeding in developing countries
Distribution, management anD ProDuctivity of Poultry genotyPes in most developing countries, there are two parallel poultry industries: one using high-performing commercial layer or broiler genotypes; and the other based on lower-performing, dual-purpose indigenous breeds. the proportions in these two categories vary widely among countries, but in lower-income countries, indigenous stock compri...
متن کاملThe role of carotenoids in breeding poultry
Carotenoids are essential ingredients in animal feed. They are not only important as pigments but serve as health promoting antioxidants and as a precursor of vitamin A. Because of their importance in visual perception of animal products, such as eggs, and their central role in health and well being of the animal, carotenoid content needs to be carefully monitored. Carotenoids are present in th...
متن کاملPoultry Breeding: Progress and Prospects for Genetic
Estimates of genetic gains and present performance of layers and broilers were reviewed Current and developing technologies pertinent to the breeding of layers and broilers were discussed with some of their assumptions and limitations. Under present methods, contemporary theory and selection technologies are critiqued Under developing technologies, selection for adaptation to production environ...
متن کاملGenetic Technology Applied to Poultry Production 1 Genetic markers and their application in poultry breeding
S POULTRY SCIENCE ASSOCIATION August 8–11, 2002 Newark, Delaware * Author Presenting Paper Ancillary Scientists Symposium Genetic Technology Applied to Poultry Production 1 Genetic markers and their application in poultry breeding. M. G. Emara*1, H. Kim1, C. J. Schmidt1, K. S. Decker1, and H. S. Lillehoj2, 1University of Delaware, 2USDA-ARS, PBESL. The current chicken genetic map contains at le...
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ژورنال
عنوان ژورنال: Poultry Science
سال: 1952
ISSN: 0032-5791
DOI: 10.3382/ps.0310804