Performance and macrophage activity of broilers fed with a sorghum meal with different yeast wall levels

AUTOR(ES)

Ferreira, Suelen Regina, Murakami, Alice Eiko, Silveira, Thais Gomes Verzignassi, Santos, José Maurício Gonçalves dos, Fernandes, Jovanir Inês Muller

FONTE

Brazilian Archives of Biology and Technology

DATA DE PUBLICAÇÃO

2011-04

RESUMO

The aim of this work was to evaluate the effect of broiler breeders' age and yeast wall (YW) levels on broilers' performance and macrophage activitys. The experiment consisted in a completely randomized design and a 2 X 5 factorial arrangement and two controls of two broiler breeders age (34 and 57 weeks of age) and five YW levels (zero, one, two, three or four kg of YW/ton of diet). They received sorghum diet compared to a control corn/soybean meal diet. The age of the broiler breeders influenced the performance, but did not affect macrophage activity. At 34 weeks age broiler breeders' progeny, all diets were similar considering the average weight. For 57 weeks age broiler breeders' progeny, at 21 days, only average weight of sorghum diet supplemented with 4 kg/ton was similar to corn diet results. The optimum level of YW for maximal macrophage activity was 2.06 kg/ton of meal.

Documentos Relacionados

• Performance and some intestinal functions of broilers fed diets with different inclusion levels of sunflower meal and supplemented or not with enzymes
• Performance of broilers fed with different levels of methionine hydroxy analogue and DL-methionine
• Feed restriction on performance and blood parameters of broilers fed diets with different sodium levels
• Nutritional Balance of broilers fed diets containing two calcium levels and supplemented with different phytase levels
• Performance of broilers fed diets with different dietary electrolyte balance under summer conditions