The use of alternative feed additives as a replacement for antibiotic growth promoters has been focused on increasing the growth efficiency of broiler. This study was conducted to compare the effects of butyric acid blend with valeric acid and tributyrin on growth and carcass in broiler. A total of 630 male broiler chickens (ROSS 308) was divided into 3 groups and distributed into 6 pens with each pen consisting of 35 birds following a Completely Randomized Design. Throughout the 35 days of the feeding trial, all birds received diets: 1) Control diet, 2) +Butyric acid blend with Valeric acid and 3) +Tributyrin. The results indicated that birds received butyric blend with valeric acid or tributyrin showed significantly improved feed conversion ratio (p<0.05). Birds receiving butyric blend with valeric acid tend to increase daily weight gain. Feed intake seems to be decreased by tributyrin. Conversely, the birds received butyric blend with valeric acid or tributyrin supplementation not influenced carcass yield and foot-pad score. Therefore, the supplementation of butyric blend with valeric acid or tributyrin results in improved growth performance without the negative effect on carcass quality in broiler chicken.
Poeikhampha et al. (Fri,) studied this question.