Effect of Fermented Rapeseed Meal on Growth Performance, Nutrient Digestion and Absorption and Meat Quality of Broilers

CHEN Zhaoqi, DING Zhien, CAI Haiying, XING Yi, CHANG Hui

doi:10.3969/j.issn.1006-267x.2017.08.042

Chinese Journal of Animal Nutrition >

2017 , Vol. 29 >Issue 8: 2969 - 2976

DOI: https://doi.org/10.3969/j.issn.1006-267x.2017.08.042

Molecular Nutrition

Effect of Fermented Rapeseed Meal on Growth Performance, Nutrient Digestion and Absorption and Meat Quality of Broilers

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1. Institude of Tea and Food Science and Technology, Anhui Agriculture University, Hefei 230036, China;
2. Institude of Animal Science and Technology, Anhui Agriculture University, Hefei 230036, China

Received date: 2017-01-24

Online published: 2017-08-02

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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 randomly 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 digestibility of protein, the apparent digestibility of fat and the apparent digestibility of energy of group B were significantly or extremely significantly higher than those of group A (P<0.05 or P<0.01), while the apparent digestibility of protein and the apparent digestibility of fat of groups C and D were significantly or extremely significantly lower than those of group A (P<0.05 or P<0.01). 3) The chest muscle pH_{45 min} and pH_{24 h} of test groups had decreased to varying degrees compared with group A, and the pH_{24 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 improve nutrient digestion and absorption and meat quality of broilers.

Key words： fermented rapeseed meal; growth performance; digestion and absorption; meat quality

Cite this article

CHEN Zhaoqi, DING Zhien, CAI Haiying, XING Yi, CHANG Hui . Effect of Fermented Rapeseed Meal on Growth Performance, Nutrient Digestion and Absorption and Meat Quality of Broilers[J]. Chinese Journal of Animal Nutrition, 2017 , 29(8) : 2969 -2976 . DOI: 10.3969/j.issn.1006-267x.2017.08.042

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