Effects of fermented wheat-rice distillers dried grains with solubles on meat quality and amino acid profile in broilers

C Yang,J Tang,D Bin,X Tang,H Yang,Q Tang

doi:10.4314/sajas.v49i5.19

C Yang, J Tang + Show 4 more

Open Access

https://doi.org/10.4314/sajas.v49i5.19

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Abstract

The aim of this experiment was to evaluate the effects of replacing distillers dried grains with solubles (DDGS) with fermented DDGS (FDDGS) on meat quality and serum amino acid profiles in Chinese yellow broilers. Forty-eight 42-day-old male Chinese yellow broilers were randomly allotted to the treatments. Each treatment was replicated six times with four birds per replicate. Both groups received a basal corn-soybean diet that was supplemented with either 20% DDGS or 20% FDDGS. Broilers were euthanized at 70 days old. The right half of each breast was evaluated for meat quality. Both breast and thigh meats were evaluated for proximate and fatty acid composition. Serum from blood samples was analysed to quantify relative amounts of free amino acids. Breast meat from broilers supplemented with FDDGS had a lower pH and less drip loss than those supplemented with DDGS (P <0.05). No differences were detected between treatments in the proximate composition of breast and thigh meat (P >0.05). Myristic acid (C14:0) concentration of thigh muscles was reduced for broilers supplemented with FDDGS compared with those supplemented with DDGS (P＜0.05). Concentrations of lysine, taurine, alpha-aminoadipic acid, glycine, and 3-methylhistidine in serum were all lower for broilers supplemented with FDDGS than for those supplemented with DDGS (P＜ 0.05). Meanwhile, the serum phosphoserine concentration of the FFDS-supplemented broilers was greater than those supplemented with DDGS (P＜0.05). In conclusion, replacing 20% DDGS with a like amount of FDDGS can be recommended for diets of growing broiler chickens.Keywords: fatty acids, meat quality, shear force

Highlights

As ethanol production has expanded in recent years, the availability of dried grains with solubles (DDGS) as a feedstuff for poultry diets has increased
No significant difference was noted in the average daily gain between fermented DDGS (FDDGS) and DDGS groups (P> 0.05) (Table 3)
It has been shown that adding 30% corn DDGS to finisher diets has no negative effect on the performance of Chinese yellow broilers (Ruan et al, 2017)

Summary

Introduction

As ethanol production has expanded in recent years, the availability of DDGS as a feedstuff for poultry diets has increased. Owing to the high percentage of lignocellulose and low quality of protein (Barekatain et al, 2013), effective utilization of DDGS remains an elusive problem in animal production. The evaluated linoleic acid of DDGS improved meat quality by increasing the proportion of polyunsaturated fatty acids (PUFAs) (Min et al, 2015; Jiang et al, 2014). The improved nutritional value as a result of fermentation has already been demonstrated It is unclear whether substituting FDDGS for DDGS can relieve negative effects on the performance and meat quality that result from supplementation of broilers with high levels of DDGS. The present study was conducted to investigate the effects of replacing DDGS with FDDGS at high inclusion levels on growth performance, meat quality, and serum amino acid profile in broilers

Materials and Methods

Results and Discussion

Conclusion