Usage of probiotic in country-type broiler's chicken diet and its effects over the carcass yield, morphology and the gastrointestinal pH
SUMMARY This study had as an objective to evaluate the carcass yield, morphology and intestinal pH of male country hick broilers raised on Tifton-85 pickets, fed with commercial probiotic supplemented ration. A total of 210 one-day-old males broiler's chicken from the Peeled Neck lineage were r...
Saved in:
Published in | Revista brasileira de saúde e produção animal Vol. 18; no. 4; pp. 530 - 541 |
---|---|
Main Authors | , , , , , , , |
Format | Journal Article |
Language | English |
Published |
UFBA - Universidade Federal da Bahia
01.12.2017
Universidade Federal da Bahia |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | SUMMARY This study had as an objective to evaluate the carcass yield, morphology and intestinal pH of male country hick broilers raised on Tifton-85 pickets, fed with commercial probiotic supplemented ration. A total of 210 one-day-old males broiler's chicken from the Peeled Neck lineage were raised in experimental boxes on a conventional shed until 30 days of age, and from 30 to 90 days of age they had access to Tifton-85 pickets (Cynodonspp.). The carcass yield variables evaluated were live weight at 90 days, carcass weight (with foot, neck and head), carcass weight (without foot, neck and head), thigh, chest, wings, edible viscera, inedible viscera, abdominal fat, pH, length and weight of the gastrointestinal tract compartments (gut, duodenum, jejunum, ileus, proventriculus, gizzard, and cecum). All data went through analysis of variance, and the means of the treatments were compared by the F test with 5% of probability. Variables of carcass yield, primary and secondary cuts, length, weight and pH of gastrointestinal tract compartments were not influenced (P> 0.05) by treatments with and without probiotic addition. Inclusion of 300 g / ton of the probiotic Bacillus subtilis DSM 15,544 in broiler's chicken from the Peeled Neck lineage had no influence over the carcass yield, pH and morphology of the gastrointestinal compartments of the birds in the period and levels in the present experiment. The sanitary challenge was not enough to demonstrate the effectiveness of probiotic action.
RESUMO Objetivou-se com este trabalho avaliar o rendimento de carcaça e pH intestinal de frangos coloniais machos criados em piquetes com Tifton- 85, alimentados com ração suplementada com probiótico comercial. Foram utilizados 210 pintos de corte de um dia, machos, da linhagem Pescoço Pelado, criados em boxes experimentais em galpão convencional até os 30 dias de idade, e de 30 a 90 dias tiveram acesso a piquetes de Tifton-85 (Cynodonspp.). O delineamento experimental utilizado foi inteiramente casualizado, com dois tratamentos (ração convencional e ração convencional suplementada com probiótico “Bacillus subtillis DSM 15.544”) e cinco repetições, contendo 21 aves por tratamentos. As variáveis de rendimento da carcaça avaliadas foram peso vivo aos 90 dias (PV), peso de carcaça (com pé, pescoço e cabeça), peso da carcaça (sem pé, pescoço e cabeça), coxa, sobrecoxa, peito, asas, vísceras comestíveis,vísceras não comestíveis, gordura abdominale o pH dos compartimentos do trato gastrointestinal (papo, duodeno, jejuno, íleo, proventrículo, moela, ceco). Os dados foram submetidos à análise de variância, e as médias dos tratamentos foram comparadas pelo teste F a 5% de significância. As variáveis de rendimento de carcaça, cortes primários, secundários e pH das vísceras não foram influenciadas (P>0,05) pelos tratamentos com e sem adição de probiótico. Presumiu-se que o desafio sanitário não foi suficiente para demonstrar efeitos do probiótico sobre as variáveis de carcaça e pH dos compartimentos intestinais. |
---|---|
ISSN: | 1519-9940 1519-9940 |
DOI: | 10.1590/s1519-99402017000400004 |