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 کاملProductivity and Technical Efficiency of Poultry Egg Production in Nigeria
The study examined the Productivity and Technical Efficiency of Poultry egg production in Nigeria using the stochastic frontier production function analysis. Primary data were collected using a set of structured questionnaire from two hundred poultry egg farmers who were selected using multi stage sampling techniques, from five Local Government Areas (LGA) of Osun state, Nigeria. Results showed...
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Due to its central position in the production chain, in-ovo development is influenced by pre-incubation factors that affect the quality of embryonated eggs and incubation conditions themselves, and both may influence egg hatchability and chick quality, as well as bird survival, growth performance, and phenotype in the field. The evolution of the incubation process over the years is characterize...
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...
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...
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ژورنال
عنوان ژورنال: Journal of Heredity
سال: 1910
ISSN: 0022-1503,1465-7333
DOI: 10.1093/jhered/1.2.149