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- Katanbaf, M.N.; Hardiman, J.W.
- Poultry science 2010 v.89 no.4 pp. 822-824
- animal well-being, etc ; broiler breeders; animal breeding; animal health; carcass yield; selection criteria; artificial selection; genetic improvement; feed conversion; phenotype; pedigree; animal age; abnormal development; animal physiology; mortality; data collection; consumer demand; animal behavior; product development; Show all 19 Subjects
- ... Primary breeders are well aware that selecting for better health and well-being along with economic traits such as faster growth rate, higher levels of meat yield, and improved efficiency of feed utilization are critical to balanced long-term genetic progress of their pure lines as well as to increased production efficiency of broiler products for the broiler industry. Cobb collects and selects on ...
- Tactacan, G.B.; Guenter, W.; Lewis, N.J.; Rodriguez-Lecompte, J.C.; House, J.D.
- Poultry science 2009 v.88 no.4 pp. 698-707
- animal well-being, etc ; animal behavior; environmental enrichment; laying hens; physical activity; battery cages; animal health; egg weight; bone density; specific gravity; feed intake; egg production; immune response; feathers; battery husbandry; mortality; Show all 16 Subjects
- ... Concerns regarding the welfare of laying hens raised in battery cages have led to the development of enriched cages that allow hens to perform natural behaviors including nesting, roosting, and scratching. This study was conducted to compare indices of production and welfare in birds housed in 2 different caging systems. Shaver White hens were housed from 21 to 61 wk in either conventional battery ...