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The analysis of variance was used to evaluate the datasets, and the means were compared using Duncan's new multiple-range test. Data indicated that pigs had substantially higher body weight gain but lower feed conversion and feed cost per gain than L1L1 and L1L3. Carcass percentage and some characteristics such as pH, temperature, pork color, and drip loss were not substantially different between the three black pig cross-inbred lines (P>0.05). The LSQ index and back fat thickness showed that three sets of black pigs had moderate lean and fat percentages. The BGC supplementation may increase feed intake. On the other hand, it has no discernible effect on growth rate, carcass characteristics, or quality. The L1L3black pig demonstrated excellent growth efficiency, decent quality pork, and carcass percentage. However, BGC supplementation has no discernible effect on growth rate, carcass characteristics, or quality. The L1L3 black pig demonstrated great efficiency of growth performance, acceptable quality pork, and carcass percentage. The L1L3 can be the priority option and can be implied for improving the pig output of small farmers in Nan Province. The BGC supplementation at the rate of 1.0 percent of body weight/day may increase the feed intake while not affecting black pig growth or carcass.
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