Abstract #W489

# W489
Quality parameters of goat meat as influenced by dietary condensed tannins from pine bark.
Jolethia O. Jones*1, Jung Hoon Lee1, Byeng R. Min2, Govind Kannan1, Brou Kouakou1, 1Fort Valley State University, Fort Valley, GA, 2Tuskegee University, Tuskegee, AL.

This study was conducted to evaluate the quality characteristics of goat meat (chevon) from meat goats fed ground pine bark (PB, Pinus spp.) containing up to 13% condensed tannins (CT) on a DM basis. Twenty-four intact male Kiko goats (8 mo of age; BW = 39.7 ± 2.55 kg) were randomly assigned to pastures for a grazing trial. Goats were grazed in a winter rye grass-dominant pasture, and supplemented with either bermudagrass hay (BG) or PB pellet (n = 12 goats/supplementation). Each supplement consisted of alfalfa pellet, molasses, and mineral mixtures with either BG or PB powder, provided at 1.5% of BW at individual feeding stations. The dietary supplements were isocaloric and isonitrogenous. After 50 d grazing, goats were slaughtered and kept at 2°C for 24 h. Longissimus muscle (LM) pH was measured from individual carcasses and each carcass was fabricated to obtained 2.5-cm thick loin chops for meat quality analysis. All data were analyzed as a completely randomized design. The LM pH of goats was not significantly different (P > 0.05) between BG-hay and PB-pellet supplementations (5.65 and 5.70 ± 0.048, respectively). No significant differences were found in the CIE L* (lightness) and b* (yellowness) values of loin chops from goats supplemented either BG-hay or PB-pellet. However, the CIE a* (redness) values of chops from goats fed BG-hay were higher (P < 0.05) than those from goats fed PB-pellet. No differences (P > 0.05) were found in the proximate composition of LM from the loin chops of goats fed the 2 different supplements. Furthermore, the thiobarbituric acid reactive substances (TBARS) values of LM from the loin chops were not significantly different between the 2 different supplements. No significant differences were found in the Warner-Bratzler shear values (3.90 vs 3.86 ± 0.13 kg) and cooking losses (20.1 vs 22.4 ± 1.12%) of loin chops from goats supplemented either BG-hay or PB-pellet. The results indicate that supplementing with pine bark pellet did not change the quality of chevon but it might influence the fresh red meat color of chevon.

Key Words: quality, goat meat, pine bark