Effect of processed soybean meal on performance, nutrient digestibility and microbial population in broiler chicks fed diets with different levels of protein
This study was conducted to evaluate the effects of acid hydrolyzed processing on the nutritional value of soybean meal (SBM) and influence of the acid-hydrolyzed SBM on the growth performance, intestinal morphology, microbial population, digestive enzymes activity, and nutrient digestibility in broiler chicks fed with diets containing different levels of crude protein. A total of 300 one-day-old male broiler chickens were used in a design with 6 treatments and 5 replicates per each during 1 to 42 days of age. This experiment was conducted as a rendomozed completely designed with a 2 × 3 factorial arrangement of treatments including two types of SBM (raw and treated with 0.50% citric acid) and three inclusion rates of crude protein (100, 95 and 90% of requirements). The results showed that acid-treated SBM improved feed conversion ratio in broilers compared with raw-SBM group (P < 0.05). The decrease of protein requirements up to 90% declined growth performance of broilers compared to 95 and 100 % of requirements (P < 0.05). Acid processing of SBM increased digestibility coefficient of crude protein and protease and amylase activity in broiler chickens (P < 0.05). A decrease in protein digestibility and enzyme activity was observed in broilers fed low protein (90 % of the requirements) diet (P < 0.05). It can be concluded that acid processing of SBM improved its nutritional quality. A. In addition, reduction of crure protein requirements up to 95% in diets containing citric acid-treated SBM had no negetave impact on performance in broiler chicks.
Norozi, M., Rezaei, M., & Kazemi fard, M. (2023). Effect of processed soybean meal on performance, nutrient digestibility and microbial population in broiler chicks fed diets with different levels of protein. Iranian Journal of animal Science, (), -. doi: 10.22059/ijas.2022.345444.653895
MLA
Masomeh Norozi; Mansour Rezaei; Mohammad Kazemi fard. "Effect of processed soybean meal on performance, nutrient digestibility and microbial population in broiler chicks fed diets with different levels of protein". Iranian Journal of animal Science, , , 2023, -. doi: 10.22059/ijas.2022.345444.653895
HARVARD
Norozi, M., Rezaei, M., Kazemi fard, M. (2023). 'Effect of processed soybean meal on performance, nutrient digestibility and microbial population in broiler chicks fed diets with different levels of protein', Iranian Journal of animal Science, (), pp. -. doi: 10.22059/ijas.2022.345444.653895
VANCOUVER
Norozi, M., Rezaei, M., Kazemi fard, M. Effect of processed soybean meal on performance, nutrient digestibility and microbial population in broiler chicks fed diets with different levels of protein. Iranian Journal of animal Science, 2023; (): -. doi: 10.22059/ijas.2022.345444.653895
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