Reducing of glucosinolates in rapeseed meal by solid state fermentation and its effects on performance and gastrointestinal microflora population of broiler chickens

This experiment was conducted for reducing of glucosinolates in rapeseed meal by solid state fermentation and its effects on performance and gastrointestinal microflora population of broiler chickens. Raw rapeseed meal was fermented with a liquid mixed culture containing Lactobacillus acidophilus, Bacillus subtilis and Aspergillus niger in a ratio of 1:1.2. After the 25-day fermentation, glucosinolates were reduced from 12.21 to 3.93 mmol/g. A total of 300 Cobb 500 broilers in a completely randomized design were allocated to 5 treatments with 4 replicates of 15 chickens each. Experimental treatments was containing 0, 50 and 100% raw or/and fermented rapeseed meal replaced by soybean meal in diets. The results showed that fermented rapeseed meal compared with raw rapeseed meal improved broiler’s performance (P