动物营养学报2017，Vol.29Issue(8)：2969-2976,8.DOI:10.3969/j.issn.1006-267x.2017.08.042
发酵菜籽粕对肉鸡生长性能、营养物质 消化吸收及肉品质的影响
Effect of Fermented Rapeseed Meal on Growth Performance, Nutrient Digestion and Absorption and Meat Quality of Broilers
摘要
Abstract
In this experiment, equal-nitrogen replacing different proportions of soybean meal with fermented rapeseed meal to study the effects of fermented rapeseed meal on growth performance, nutrient digestion and absorption and meat quality of broilers. Two hundred 7-day-old healthy Arbor Acres ( AA) broilers were ran-domly allocated to four groups with five replicates in each group and ten broilers in each replicate ( half male and half female) . Broilers in group A ( control group) were fed a basal diet, while those in test groups were fed the basal diet with 15% ( group B) , 35%( group C) and 50% ( group D) soybean mean equal-nitrogen replaced by fermented rapeseed meal, respectively. The trial began at 7 days of age and ended at 42 days of age. The results showed as follows:at the age of 7 to 42 days, the average daily gain ( ADG) of groups C and D was extremely significantly lower than that of group A ( P<0.01) , the feed/gain ( F/G) of groups C and D was extremely significantly higher than that of group A ( P<0.01) , and the average daily feed intake ( ADFI) of group C was extremely significantly higher than that of group A (P<0.01), while the ADG, ADFI and F/G of group B had no significant differences compared with group A (P>0.05). 2)At the age of 42 days, the intestinal chyme pH of groups B ,C and D was decreased by 1.57% (P<0.01), 1.41% (P<0.01) and 0.16% ( P>0.05) , respectively;the intestinal chyme viscosity of groups B ,C and D was decreased by 4.17%( P<0.05) , 4.17% ( P<0.05) and 1.67%( P>0.05) , respectively. At the age of 42 days, the apparent digest-ibility of protein, the apparent digestibility of fat and the apparent digestibility of energy of group B were sig-nificantly or extremely significantly higher than those of group A ( P<0.05 or P<0.01) , while the apparent di-gestibility of protein and the apparent digestibility of fat of groups C and D were significantly or extremely sig-nificantly lower than those of group A (P<0.05 or P<0.01). 3) The chest muscle pH45 min and pH24 h of test groups had decreased to varying degrees compared with group A, and the pH24 h of group B had no significant difference compared with group A ( P>0.05) . Compared with group A, the chest muscle lightness ( L?) value of group B was extremely significantly increased( P<0.01) , while the redness ( a?) and yellowness ( b?) of group B were extremely significantly decreased ( P<0.01) . The chest muscle dripping loss of test groups was extremely significantly lower than that of group A ( P<0.01);the chest muscle shearing force of groups B and C was extremely significantly lower than that of group A ( P<0.01); the chest muscle inosinic acid ( IMP) content of groups B, C and D was increased by 2.55% ( P<0.01) , 0.66%( P>0.05) and 0.21% ( P>0.05) compared with group A, respectively. It is concluded that equal-nitrogen replacement of 15% soybean meal with fermented rapeseed meal in diet of broilers has no negative effect on growth performance, and can im-prove nutrient digestion and absorption and meat quality of broilers.关键词
发酵菜籽粕/生长性能/消化吸收/肉品质Key words
fermented rapeseed meal/growth performance/digestion and absorption/meat quality分类
农业科技引用本文复制引用
陈昭琪,丁之恩,蔡海莹,邢懿,常慧..发酵菜籽粕对肉鸡生长性能、营养物质 消化吸收及肉品质的影响[J].动物营养学报,2017,29(8):2969-2976,8.基金项目
国家科技支撑计划(编号2012BAD14B13) （编号2012BAD14B13）
