Carcass Yield and Visceral Organs of Broiler Chickens Fed Palm Kernel Meal or Aspergillus wentii TISTR 3075 Fermented Palm Kernel Meal

Abstract

The objective of the current study was to investigate the effect of palm kernel meal (PKM) and Aspergillus wentii TISTR 3075 fermented PKM (FPKM) at various levels on carcass yield and visceral organs of broiler chickens. A 2 × 4 factorial experiment in a completely randomized design with one control was applied. The first factor was two kinds of PKM and the second factor consisted of PKM or FPKM 10, 20, 30 and 40 % in the rations. The yield of hot carcass carried out in broilers showed no benefit in using the fermented substrate as a ration component in the broiler feed. Quadratic responses were found in relative liver weights of both broilers fed various levels of PKM and FPKM (P = 0.062 and P = 0.002, respectively). The relative heart weight was affected linearly by increasing levels of FPKM (P = 0.009). The spleen was little affected by PKM, whereas FPKM seemed linearly affected (P = 0.078) as FPKM levels were increased from 10 to 40 %. The relative gizzard weight for broilers fed with FPKM was linear with increased levels of FPKM (P = 0.043); but the trend for broilers fed with PKM was not significant (P > 0.05). Abdominal fat pad linearly decreased with increasing levels of PKM (P = 0.032) or FPKM (P = 0.023). From this experiment, we conclude that fermented PKM with A. wentii TISTR 3075 had no adverse effect on carcass yield and relative weight of visceral organs of broiler chickens.