PSIII-A-6 - Boreox, a Proprietary Blend of Polyphenols Alters Positively Broiler Meat Quality During Storage

Abstract: Feed supplementation with vitamin E increases antioxidant capacity, essential to cope with cellular oxidative process that may happen during meat length of storage. This last decades, polyphenol rich botanicals content were widely investigated as new antioxidant chain links able to spare and/or strengthen Vitamin E inclusion. Therefore, this study designed on broiler meat model aims to determine any preservative and positive effects of a novel proprietary blend of polyphenols extracts [BoreOX® (BX500), Probiotech International Inc.]. A total of 840 Ross 308 male broilers were distributed on two dietary treatments: standard (SVE) with 84, 56 and 50 ppm of expected vit. E in starter (S), grower (G) and finisher (F) stages, respectively and a polyphenols-supplemented diet with the same levels of vit. E added with 25, 50 and 100 ppm of (BX500) in S, G and F phases, respectively (SVEBX). The same 3-phase diets were offered ad libitum to 6 replicated pens of 70 birds from 0 to 42 days of age with robenidine as anticoccidial agent. At slaughterhouse, meat samples (breast and thigh muscle from 1 bird/pen) were cooled down for 24 hours and stored at +3°C before completing some selected analysis (chemical, rheological and microbiological) at 2, 6 and 10 days of storage (72 samples/treatment). Treatment effect was compared an analysis of variance performed in Statistica, version 7.1 (StatSoft, Czech Republic). The monitored parameters of chicken meat changed mainly due to the length of storage - TBA, dripping and microorganism counts increased, on the other hand, antioxidant capacity, meat firmness and water activity decreased. The presence of the polyphenols leaded to higher thigh meat lightness (p = 0.059). In conclusion, although the effect of the tested supplement in the feed was slightly positive in terms of protection of fat against oxidative changes. Apart from meat lightness, the other parameters monitored were not significantly affected.