Nutritional requirement of digestible threonine for brown-egg laying hens from 50 to 66 weeks of age Report as inadecuate




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Márcia Antonia Bartolomeu Agustini ; Sabrina Endo Takahashi ; Alice Eiko Murakami ; Cleverson de Souza ; Sandra Elisa Schneiders ; Clauber Polese ;Semina: Ciências Agrárias 2015, 36 6

Author: Ricardo Vianna Nunes

Source: http://www.redalyc.org/articulo.oa?id=445744152031


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Semina: Ciências Agrárias ISSN: 1676-546X semina.agrarias@uel.br Universidade Estadual de Londrina Brasil Vianna Nunes, Ricardo; Bartolomeu Agustini, Márcia Antonia; Endo Takahashi, Sabrina; Eiko Murakami, Alice; de Souza, Cleverson; Schneiders, Sandra Elisa; Polese, Clauber Nutritional requirement of digestible threonine for brown-egg laying hens from 50 to 66 weeks of age Semina: Ciências Agrárias, vol.
36, núm.
6, noviembre-diciembre, 2015, pp.
3877-3885 Universidade Estadual de Londrina Londrina, Brasil Available in: http:--www.redalyc.org-articulo.oa?id=445744152031 How to cite Complete issue More information about this article Journals homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative DOI: 10.5433-1679-0359.2015v36n6p3877 Nutritional requirement of digestible threonine for brown-egg laying hens from 50 to 66 weeks of age Exigência nutricional de treonina digestível para poedeiras semipesadas de 50 a 66 semanas de idade Ricardo Vianna Nunes1; Márcia Antonia Bartolomeu Agustini2; Sabrina Endo Takahashi3; Alice Eiko Murakami4; Cleverson de Souza5*; Sandra Elisa Schneiders6; Clauber Polese6 Abstract The dietary requirement of threonine was determined for brown laying hens in the period 50-66 weeks of age, based on performance parameters and quality of eggs.
For this we used 150 laying Shaver Brown hens distributed in a completely randomized design with ve treatments (0.460; 0.490; 0.520; 0.550 and 0.580%) of digestible threonine, six replications and ve birds each.
The digestible threonine levels did not affect (p 0.05) feed intake, egg production, egg weight, egg mass or feed conversion kg kg-1, but presented a quadratic effect (p 0.05) on feed conversion dozen kg –1, where the lower conversion was obtained with a supply of 0.521% threonine in the diet.
There was no effect of dietary di...





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