Estimate the effects of peanut extract as a poultry diet additive on growth performance, carcass quality, and immunity of broilers

This experiment conducted to estimate the effect of adding peanut extract as an additive into two different dietary energy level diets on growth performance, carcass quality, and immunity in broilers from 1 to 35 days. A total of 384 one-day-old chicks were used.

Broilers alloted to each treatment to give 6 replicate per treatment, each pen obtains 8 chicks with completely randomized design. PC diet formulated based on corn-soybean meal to meet or exceed Ross 308 Nutrient Specification (2019) for target live weight ≦1.60kg and NC diet formulated –120kcal/kg from the PC diet. 0%, 0.05,% 0.1% peanut extract additive were added to PC and NC diet both, and commercial antioxidant with PC and NC diet to compare the effect with peanut extract. The chicks were offered respective diets on an ad libitum basis. Body weight (BW), feed intake measured weekly and average daily gain (ADG), average daily feed intake, feed conversion ratio were calculated based on measures. On day 21 and 35, randomly selected one bird from each pen was euthanized. Carcass and blood sample were collected to estimate the effect of peanut extract on carcass quality and immunity. All data were analyzed in two-way ANOVA with SPSS 25. Peanut extract additive improves 30g of BW on day 35 under NC diet condition compared to PC diet. Also peanut extract added groups improved ADG compared to control diet. Peanut extract also significantly affects on oxidation in leg meat in PC diet, but peanut extract did not affects on the broiler immunity.

Keywords: broiler, carcass trait, growth performance, oxidation, peanut extract.

Published in the Proceedings of 2021 Annual Congress of KSAST (Korean Society of Animal Science and Technology).