Effect of Brazilian red pepper meal associated with different levels of antibiotics on broilers chickens/Efeito da pimenta rosa associada a diversas dosagens de antibioticos em frangos de corte

• Published in: Ciência rural Vol. 42; no. 8; p. 1503
• Main Authors: Goncalves, Fabiano Gomes, Zanini, Surama Freitas, Feitosa, Mariana Lorencao, Goncalves, Elaine Paiva Moraes, Colnago, Geraldo Luiz
• Format: Journal Article
• Language: Spanish
• Published: Universidade Federal de Santa Maria 01.08.2012
• Subjects: Antibacterial agents; Aspartate; Birds; Enzymes
• ISSN: 0103-8478

The aim of this research was to evaluate the effects of the increase levels of antibiotics associated with the Brazilian red pepper meal (BRPM) on liver function and performance of broilers. A total of 528 day-old male chicks, Cobb, distributed in a randomized design of six treatments and four replicates of 22 birds each: T1: Negative Control (NC): basal diet; T2: Positive Control (PC): basal diet with 1,2% BRPM; 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. BRPM contains tannins thus its use in animal feed needs to evaluate by liver function and animal performance. The dosage of the enzymes ALT (alanine aminotransferase), AST (aspartate aminotransferase) and GGT (gamma glutamyltransferase) is a tool in the diagnosis of liver damage. For this, were randomly collected blood samples from 10 animals per treatment between 21 and 41 days age. At 21 days of age it was observed elevated values of AST and decreased of ALT in broilers fed diet BRPM associated with higher levels of antibiotics compared to the others (P<0.05). However, it was observed that the serum concentrations of AST, ALT and GGT in broiler chickens fed diet with 1.2% of BRPM did not differ from NC at 21 and 41 days (P>0.05). There was no effect (P>0.05) of treatments on broilers weight and relative liver weight at 43 days of age. The supplementation of Brazilian red pepper with or without antibiotics improved feed conversion at 43 days of age. It was concluded that the inclusion of 1.2% BRPM did not affect liver function but the addition of high levels of antibiotics associated with the BRPM resulted in alteration of hepatic enzymes. Key words: Schinus terebinthifolius Raddi, Brazilian red pepper, hepatic enzymes, antibiotics, broilers. Este trabalho objetivou avaliar o efeito da adicao de niveis crescentes de antibioticos associado ao farelo de pimenta rosa (FPR) sobre a funcao hepatica e desempenho de frangos de corte. Utilizou-se 528 pintos, machos, da linhagem Cobb de um dia de idade distribuidos num delineamento inteiramente casualizado com seis tratamentos, quatro repeticoes com 22 aves cada: T1: Controle Negativo (CN): Dieta Basal; T2: Controle Positivo (CP): Dieta Basal com 1,2% FPR; T3: CP + 11ppm bacitracina Zn e 17ppm salinomicina; T4: CP+22ppm bacitracina Zn e 34ppm salinomicina; T5: CP+33ppm bacitracina Zn e 51ppm salinomicina; T6: CP + 45ppm bacitracina Zn e 67ppm salinomicina. Por conter taninos, o uso de pimenta rosa na alimentacao animal requer avaliacao da funcao hepatica, sendo a dosagem das enzimas ALT (alanina aminotransferase), AST (aspartato aminotransferase) e GGT (gama glutamiltransferase) ferramenta auxiliar no diagnostico de lesoes hepaticas. Portanto, aos 21 e 41 dias de idade, 10 animais por tratamento foram escolhidos aleatoriamente e coletadas amostras de sangue. Aos 21 dias de idade, verificouse efeito significativo (P<0,05) dos tratamentos sobre os valores da AST e ALT, sendo que as aves alimentadas com FPR associado com maiores doses de antibioticos tiveram valores elevados de AST e reduzidos de ALT, comparada aos demais tratamentos. Entretanto, as concentracoes sericas das enzimas AST, ALT e GGT nos frangos alimentados com 1,2% de FPR nao diferiram (P>0,05) do CN aos 21 e 41 dias de idade. Nao houve efeito (P>0,05) dos tratamentos sobre o peso das aves e do peso relativo do figado aos 43 dias. A adicao do farelo de pimenta rosa com ou sem promotor de producao melhorou a conversao alimentar aos 43 dias de idade. Concluiu-se que a adicao de 1,2% FPR nao comprometeu a funcao hepatica e que a inclusao de doses mais altas de antibioticos, associado ao FPR na dieta, resultou em alteracao das enzimas hepaticas. Palavras-chave: Schinus terebinthifolius Raddi, pimenta rosa, enzimas hepaticas, antibioticos, frango de corte.