Effects of dietary conjugated linoleic acid on growth performance and meat quality in mule duck.

CHEN Lin; WAN Dan; XIA Zhong-sheng; CHEN Zhi-hui; LIAO Yu-ying; HE Ren-chun; WEI Li-hua

Objective] The effects of dietary conjugated linoleic acid on growth performance and meat quality in mule duck were studied to provide theoretical references for developing functional duck products rich in CLA. [Method]Sixty 7-day-old mule ducks were selected and randomly divided into control group and experimental group, with 3 repeats in each group and 10 ducks for each repeat. The ducks were fed the control diet and experimental diet adding 1.0%CLA, respectively for 49 d feeding trial, after which the growth performance, slaughter function, muscle chemical composition and the content of amino acid, fatty acid and serum lipid were measured. [Result] Diet adding1.0% CLA had no significant effect on average daily gain and feed/gain(P0.05), but significantly increased crude protein contents in breast muscle, and isoleucine, phenylalanine, threonine, serine and arginine content in leg muscle of mule duck(P0.05). There were significant differences in palmitic acid and eicosatrienoic acids contents in muscular tissue between experimental group and control(P0.05), but dietary CLA significantly increased the stearic acid and linoleic acid content(P0.05), extremely significantly increased the CLA content(P0.01), reduced the oleic acid and arachidonic acid contents in muscular tissue(P0.01), reduced content of serum total cholesterol, triglyceride and low density lipoprotein cholesterol and improve the content of high-density lipoprotein cholesterol(P 0.05). [Conclusion] Adding 1.0% CLA to diet for mule duck could improve muscle nutritive value and meat quality and increase the content of CLA and other polyunsaturated fatty acids in meat of mule duck.

LINOLEIC acid; MEAT quality; DUCKS; AMINO acids; FATTY acids; LIPOPROTEINS

Journal of Southern Agriculture, 2014, Vol 45, Issue 9, p1683

2095-1191

Academic Journal

10.3969/j:issn.2095-1191.2014.9.1683