Synergy between vegetal additive with increase levels of growth promoter on the performance and intestinal morphometry of broilers chickens/Sinergia entre aditivo vegetal e niveis crescentes de promotores de crescimento sobre o desempenho produtivo e morfometria intestinal de frangos de corte

• Published in: Ciência rural Vol. 44; no. 2; p. 340
• Main Authors: Goncalves, Fabiano Gomes, Zanini, Surama Freitas, de Sousa, Dyeime Ribeiro, da Silva, Maria Aparecida, Colnago, Luiz Geraldo
• Format: Journal Article
• Language: Spanish
• Published: Universidade Federal de Santa Maria 01.02.2014
• Subjects: Antibiotics; Statistics
• ISSN: 0103-8478; 1678-4596

The aim of this research was to evaluate the effects of the increase levels of antibiotics associated with the pink pepper meal (PPM) on animal performance and intestinal morphometry of broilers jejunum. A total of 528 day-old male chicks, Cobb 500, distributed in a randomized design of six treatments and four replicates of 22 birds each: T1-Negative Control (NC)-basal diet without PPM or antibiotics, T2-Positive Control (PC)-basal diet with 1,2% PP; T3-PC + 11ppm zinc bacitracin and 17ppm salinomycin, T4-PC + 22ppm zinc bacitracin and 34ppm salinomycin, T5-PC + 33ppm zinc bacitracin and 51ppm salinomycin, T6-PC + 45ppm zinc bacitracin and 67ppm salinomycin. In period of 1-43 days-old, it was observed that the use of PPM with or without antibiotcs reduced feed intake and improved feed:gain ratio compared with NC (P [less than or equal to] 0,05). It was observed that the broilers fed diet with antibiotics values of up to 22mg [kg.sup.-1] of zinc bacitracin and 34mg [kg.sup.-1] of salinomycin associated with the PPM had the higher villus height compared with NC. The PPM can be used to replace antibiotic growth promoters without decrease on animal performance, viability and production factor. Key words: growth promoter antibiotics, jejunal mucosa, phytochemistry, produtivity, Schinus terebinthifolius Raddi. Objetivou-se avaliar o efeito da adicao de niveis crescentes de antibioticos associados ao farelo integral de pimenta rosa (FIPR) sobre o desempenho produtivo e morfometria intestinal de frangos corte. Utilizaram-se 528pintos Cobb, machos, distribuidos em um delineamento inteiramente casualizado, com seis tratamentos e quatro repeticoes de 22 animais cada, constituido pelos grupos TI-Controle Negativo (CN)-Dieta basal sem FIPR e sem antibioticos; T2-Controle Positivo (CP)-Dieta Basal com 1,2% FIPR; T3-CP + 11ppm bacitracina zinco e 17ppm salinomicina; T4-CP + 22ppm bacitracina zinco e 34ppm salinomicina; T5-CP + 33ppm bacitracina zinco e 51ppm salinomicina; T6-CP + 45ppm bacitracina zinco e 67ppm salinomicina. No periodo de 1-43 dias de idade, observou-se que a adicao de FIPR com ou sem antibiotico reduziu (P [less than or equal to] 0,05) o consumo e melhorou a conversao alimentar, comparado com CN. Verificou-se que os frangos alimentados com FIPR associado aos antibioticos, em valores acima de 22mg [kg.sup.-1] de bacitracina de zinco e 34mg [kg.sup.-1] de salinomicina, tiveram maiores alturas de vilosidades intestinais que o CN (P [less than or equal to] 0,05). O FIPR pode ser utilizado em substituicao aos antibioticos sem queda de desempenho animal e com a manutencao da viabilidade e do fator de producao. Palavras--chave: fitoquimico, indices produtivos, mucosa jejunal, pimenta rosa, promotor de crescimento, Schinus terebinthifolius Raddi.