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Intermittent lighting programs for layers with different photophases in the beg...
Yuri,Flavio Manabu; Souza,Cleverson de; Schneider,Aline Felix; Gewehr,Clóvis EliseuABSTRACT: It was possible to evaluate the effect of continuous and intermittent lighting programs with different photophases on the performance and eggs quality of laying hens, applied to the beginning of the laying phase. The authors used 420 Hy-line Brown laying hens with 21 weeks of age, bred on bedding and submitted for six periods of 28 days between the solstice of summer and winter. The three lighting pro...
Nutritional levels of digestible methionine + cystine to brown-egg laying hens ...
Polese,Clauber; Nunes,Ricardo Vianna; Vilela,Christiane Garcia; Agustini,Márcia Antonia Bartolomeu; Takahashi,Sabrina Endo; Vilela,Valter OshiroThe objective of this study was to determine the requirement of digestible methionine + cystine of brown-eggs laying hens from 50 to 66 weeks age at the end of the first production cycle. The design was completely randomized, with 150 Brown Shaver hens, which were distributed in five treatments with six replications of five birds each. Birds received a basal diet with 2857 kcal/kg metabolizable energy and 15.97...
Efeitos da adição de montmorilonita sódica na dieta sobre o perfil bioquímico d...
Batina,Patricia Neves; Lopes,Sonia Terezinha dos Anjos; Santurio,Janio Moraes; Souza,Cleverson de; Martins,Danieli BroloEste estudo teve como objetivo avaliar os valores bioquímicos e atividade enzimática hepática e renal em frangos de corte submetidos à intoxicação experimental com aflatoxina B1 com e sem a adição de montmorilonita sódica na dieta. Foram utilizados 528 frangos de corte, da linhagem Cobb, subtimetidos a seis tratamentos entre 1° ao 42° dia de vida: (T1) Controle: dieta normal; (T2) dieta com 5 ppm de aflatoxina;...