Effect of growth promoters for pigs on live performance, quality intestinal and the efficiency of biodigestion of wastes / Efeito de promotores de crescimento para suínos sobre o desempenho zootécnico, a qualidade intestinal e a eficiência da biodigestão dos dejetos
Fernandes Gavioli, David; Raele de Oliveira, Eduardo; Alves da Silva, Aline; Ceron Romero, Natália; Pardo Lozano, Arturo; Abrami Monteiro Silva, Roberta; Maria Bridi, Ana; Oba, Alexandre; Abércio da Silva, Caio.
Semina ciênc. agrar
; 34(6): 3983-3998, 2013.
Artículo
en Portugués
|
LILACS-Express
| ID: biblio-1499377
This study aimed to evaluate the effects of growth promoters in growing and finishing pigs on performance and carcass characteristics, intestinal histological profile, organs weight of the digestive tract, and the consequences of these treatments on the effluent through the process of biodigestion. We used 80 pigs with an average initial weight of 40.00 ± 1.90 kg, submitted to four treatments, during 61 days, until to reach 100.00 ± 4.50 kg of livewight, corresponding to diets with the following additives Control (diet without growth promoters); Symbiotic; Colistin (10ppm) and Tylosin (40ppm). Difference was observed to the daily feed intake during the growing phase with a greater consumption for the treatment Tylosin regarding treatment Colistin. There was no difference for carcass traits, for the weight of the organs and to the parameters evaluated in the process of digestion of manure (pH, total solids, chemical oxygen demand and biochemical oxygen demand). Regarding the intestinal morphology, animals treated with Tylosin had higher crypt depth (P ? 0.05) in the duodenum compared to animals fed with Control and Symbiotic diets, as well as larger crypt depth in the jejunum (P ? 0.05). There were differences in the rate villi / crypt with the Control treatment showing higher value compared to other treatments. For the ileum, there was a difference to crypt depth treatment of
Biblioteca responsable:
BR68.1
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