3 documents found, page 1 of 1
Calcium levels and calcium:available phosphorus ratios in diets for white egg l...
Pastore, Silvana Marques; Gomes, Paulo Cezar; Rostagno, Horacio Santiago; Albino, Luiz Fernando Teixeira; Calderano, Arele ArlindoThe experiment was conducted to determine the nutritional requirement of calcium and the best calcium:available phosphorus ratio for commercial layers at the post-laying peak. A total of 324 Hy-Line W-36 laying hens were utilized in the period from 42 to 58 weeks of age, distributed in a completely randomized design in a 3 × 3 factorial arrangement, composed of three levels of calcium (39, 42 and 45 g/kg) and t...
Digestible tryptophan:digestible lysine ratio in diets for laying hens from 24 ...
Calderano, Arele Arlindo; Gomes, Paulo Cezar; Donzele, Juarez Lopes; Barreto, Sergio Luiz de Toledo; Vellasco, Cássia RampiniThe objective of this study was to determine the ideal digestible tryptophan:digestible lysine ratio in diets for laying hens from 24 to 40 weeks of age. Two hundred and forty Hy-Line W-36 laying hens at 24 weeks of age were distributed in a completely randomized design, with five treatments, eight replicates and six birds per experimental unit. The digestible tryptophan levels in the experimental diets were 1....
Níveis de cálcio e relação cálcio/fósforo em rações para poedeiras leves de 24 ...
Vellasco, Cássia RampiniFundação de Amparo a Pesquisa do Estado de Minas Gerais; This experiment was conducted in the Poultry Department of Animal Science, Federal University of Viçosa, aiming to determine the nutritional requirement for calcium and better calcium / phosphorus ratio in the diet of laying hens from 24 to 40 weeks of age. 324 birds were used Hy-Line W-36, distributed in a completely randomized design in a 3x3 factorial ...