Abstract
Three experiments were conducted to examine the possibility of the potential use of shochu distillery by-product (SDBP) as a feedstuff of broiler chickens. In experiment 1, 12-day-old broiler chicks were given diets containing 0, 0.7, 1.4 and 2.3% SDBP (wet), respectively. In experiment 2, 6-day-old broiler chicks were given diets containing 0.7% SDBP (wet), 1.4% wet supernatant of SDBP, 0.14% dried ether extract of SDBP and 0.28% ether extract residue, and in experiment 3, 12-day-old broiler chicks were given diet containing 0.05% ether extract of SDBP. The basal diet was made mainly from corn and isolated soybean protein, with 23% crude protein and 3, 200kcal ME per kg. In experiment 1, it was observed that body weight gain and feed intake were improved significantly (P<0.05) when the diet containing 0.7% wet SDBP was given. However, increasing the level of SDBP diminished the growth promotion. In experiment 2, body weight gain was improved, when the diet containing SDBP, supernatant of SDBP or ether extract of SDBP was given, but not when the residue was given. Feed conversion ratios were significantly (P<0.05) reduced in all the treatment groups than that of the control group. In experment 3, the results were consistent with those of experiment 2. The performance was significantly (P<0.05) increased when the diet containing ether extract of SDBP was given. The present results indicate that SDBP may contain ether soluble growth promoting factor for broiler chicken.
