Effects of Feeding Palm Kernel Cake with Crude Enzyme Supplementation on Growth Performance and Meat Quality of Broiler Chicken

Abstract

Ingredients used in monogastric diet contain certain quantity of anti-nutritional factors, such as high fiber content in PKC, and complex carbohydrate in corn and soybean meal which cannot be degraded easily by poultry. Exogenous enzyme can be used to supplement enzymes available in the digestive tract of the birds to a certain level that is effective, or to provide hydrolytic capacity that is totally absent. The objective of this study was to study the effects of feeding Palm kernel cake with crude enzymes on growth performance and meat quality of broiler chicken. Four days solid state fermentation was conducted using Paenibacillus curdlanolyticus DSMZ 10248 as cellulolytic bacteria and palm kernel cake PKC as substrate, at different moisture ratio to produce enzymes. The enzymes produce were administered at different inclusion level into a broiler diet. A total of 252 male broilers were raised in a battery cage from day old to 42 days; 6 birds/cage. The birds were divided into 7 groups all the diet contains 15% PKC+corn and soybean meal. The dietary treatment consisted of: (i) Diet without enzyme (ii) Diet+0.1% commercial enzyme (iii) Diet+0.2% crude enzyme (iv) Diet+0.4% crude enzyme (v) Diet+0.6% crude enzyme (vi) Diet+0.8% crude enzyme (vii) Diet+1% crude enzyme. The result showed that higher body weight and feed intake were observed in group fed diet+1% crude enzyme, while lower body weight and feed intake were recorded in the control group. The findings of this research had showed that crude enzyme utilization on broiler diet improved growth performance of broiler chicken with little effects on meat quality, specifically pH, texture and color.