Granulometria de grãos em rações para frangos Label Rouge
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Data
2009-12-22
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Universidade Federal de Goiás
Resumo
To determine the nutritional value of corn, millet and sorghum in different sizes for broiler chickens, Label Rouge, animal performance and development of the digestive organs, experiments were performed in the areas of Poultry, Federal University of Goiás (UFG) and the Federal University of Tocantins (UFT). We evaluated the values of apparent metabolizable energy (AME) and apparent metabolizable energy corrected for nitrogen balance (AME) in the dry and natural, the coefficients metabolism of nutrients, animal performance up to 28 days and the biometrics of the digestive organs of broiler type rustic Red Label line with diets based on corn, millet and sorghum in different sizes
For the determination of AME and AME of grains, we used the method of excreta collection of chickens 14 days old were distributed in a completely randomized in two experimental trials, using 60% reference diet and 40% of food test. The AME values of dry matter of coarsely ground corn, finely ground corn, millet grain, finely ground millet, sorghum grain, sorghum grain sorghum thick and finely ground, were 3530, 3445, 3617, 3586, 3295, 3156 and 3024 kcal / kg, respectively and the values of the AME 3273, 3200, 3352, 3372, 3137, 3147 and 2.967kcal/kg natural matter, respectively. The coefficient of metabolism of nutrients improved with increased particle size, except for sorghum integer that showed the worst. The metabolizable energy was higher for sorghum grain and did not change for maize and millet for broilers Label Rouge. For the performance parameters, we used 300 animals during the early stage of development (1 to 28 days) in a completely randomized design and for morphometric measurements so sacrificed at 28 days, one animal per repetition, totaling 30 animals. Except for finely ground corn that showed the worst performance results, all other treatments were satisfactory, with millet grain made the best economic feasibility of its use. The rations provided in different sizes, showed that particle size influenced the consumption, the balance of dry matter and nitrogen and the coefficient of metabolism of nutrients and energy from seven to ten days of maize and sorghum and improved the AME values of millet. 17 to 24 days
old animals fed grain sorghum had greater retention of dry matter and nitrogen. It is recommended that the pearl millet grain for chickens like hillbilly Label Rouge until 28 days old, as the treatments used showed little effect of particle size on performance and organ development and grain millet showed the best economic indicators proved to be a grain that can be delivered worldwide from day-old chicks for Label Rouge
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GODOY, Heloisa Baleroni Rodrigues de. Particle size in Label Rouge broiler. 2009. 83 f. Tese (Doutorado em Ciências Agrárias) - Universidade Federal de Goiás, Goiânia, 2009.