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Broiler breeder hen performance and egg hatchability during rainy season in Brazilian semi-arid region REA
Furtado,Dermeval A.; Tota,Laura D. C. A.; Nascimento,José W. B.; Guimarães,Mércia C. da C.; Lopes Neto,José P..
Henhouse thermal comfort and bird age influence broiler breeder hen productivity; this way, the present research aimed to assess thermal comfort indexes and broiler breeder hen performance during winter in North East semi-arid region from Brazil, using a Cobb Avian 48 broiler strain at the age of 38 and 50 weeks. We measured the following bioclimatic indexes: air temperature and relative humidity, black globe temperature and humidity, CO2 concentration and sound pressure levels at henhouse facility. Data analysis design was complete randomized in a 3 x 3 factorial scheme with three treatments (months) and three replications (week number of collection by month). A number of 25 climatic data were observed. Bioclimatic indexes at the most warm hours...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ambience; Thermal comfort; Egg-laying; Noise.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000300001
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