Comparison the energy value of processed and non-processed soybean meal for broiler breeder hens, broiler chickens and commercial layer hens

Document Type : Research Paper


1 Ph. D. Candidate, College of Agriculture & Natural Resources, University of Tehran, Karaj, Iran

2 Professor, College of Agriculture & Natural Resources, University of Tehran, Karaj, Iran

3 Associate Professor of Biochemistry, National institute of genetic Engineering and Biotechnology, Tehran, Iran


This study was conducted to evaluate the effects of type of poultry on apparent metabolisable energy value of two soybean meal (processed and non-processed SBM).In this study, 36 broiler breeder hens (Ross 308, 62 weeks), 72 male broiler chickens (Ross 308, 35 days) and 36 commercial layer hens (Hyline W36, 40 weeks) were used. Dietary treatments were contained a reference diet and two test diets. In the test diets 30 percent of corn, SBM and sunflower oil replaced by processed or non-processed soybean meal. In all three experiments, metabolisable energy of ingredients measured by excreta collection using celite as a marker. The results indicated that the AMEn ofprocessed and non-processed soybean meal for broiler breeder hens was higher than broiler chickens and commercial layer hens. Our results showed that the AMEn of processed SBM were significantly higher than AMEn of non-processed soybean meal (2626.08 vs 2274.75 for broiler breeder hens and 2466.0 vs 1993.6 for broiler chickens and 2344.46 vs 2079.75 kcal/kg for layer hens). In conclusion, the results showed that the metabolisable energy intake of ingredients were different among different birds and processing could increase the nutritional value of soybean meal.


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