Effect of dietary Alibernet red grape pomace application into Ross 308 broiler chickens diet on amino and fatty acids profile of breast and thigh meat.

Abstract

The aim of this study was to determine the effects of Alibernet red grape pomace (ARGP) variety Alibernet addition into broiler chickens Ross 308 diet on the essential amino acid (AA) and fatty acid (FA) composition of their breast and thigh meat. At the beginning, 200 one-day Ross 308 broiler chickens of mixed gender were randomly divided into 4 groups (n = 50). The control group (C) did not receive any additional supplementation. The feed of experimental groups was enriched with 1% ARGP per 1kg of feed mixture (FM) (E1), with 2% ARGP per 1kg of FM (E2) and with 3% ARGP per 1kg of FM (E3). The FMs were produced without any antibiotics and coccidiostatics and the fattening period lasted for 42 days. Samples from breast and thigh muscle were obtained and analyzed for the content of AAs and FAs content and results were presented as g 100g-1 of dry matter. Results revealed that AA profile of breast muscle was not significantly affected, with the most present AAs Lys and Leu. In the thigh muscle we observed significant differences in the content of Thr, Val, Met, Cys and His, namely in males. From the results of FAs profile, we can state that ARGP influenced namely monounsaturated oleic acid in breast muscle (without gender difference), which had significantly highest content (p ≤ 0.05) in all experimental groups (E1-36.05, E2-35.60 and E3-36.79g 100g-1) compared with the control group (31.88g 100g-1). Overall, it seems that selected feed supplement did not negatively influence AAs and FAs profile of chicken meat.