PERFORMANCE OF BROILER CHICKENS FED SUN-DRIED PINEAPPLE (Ananas comosus) AND ORANGE (Citrus sinensis) PEELS WASTE BASED DIETS UNDER SINGLE PHASE FEEDING

Abstract

ABSTRACT A study which lasted 70 days was conducted to determine the effect of orange(OP) and pineapple(PP) peel wastes as replacement for maize in poultry diets. One hundred and sixty (160) day old broiler chicks were sorted for weight and were then randomly allotted into four different treatments with four replicates and ten birds (10) per replicate, using a completely randomized design model. Four diets containing pineapple and orange peels wastes were formulated to replace maize at 0 % (control), 5 % pineapple peel (PP), 5 % orange peel (OP) and 2.5 % mixture each of pineapple and orange peels (MPO), respectively. Data on growth performance (weight gain, feed intake and feed conversion ratio), apparent nutrient digestibility, carcass characteristics and sensory evaluation were collected. Data collected were subjected to one-way Analysis of Variance (ANOVA); significant means were separated by using Duncan’s Multiple Range Test at (p< 0.05). The growth performance results showed that final weight, daily weight gain and the feed conversion ratio (FCR) were influenced by the peels-based diets. Birds on the control diet had better feed conversion ratio (3.21). The dry matter, crude protein, ash, nitrogen free extract, ether extract and total digestible nutrient(TDN) digestibility were significantly affected (p<0.05) by the peel-based diets. Result revealed that MPO (mixture of orange and pineapple) recorded the highest dry matter, ash and nitrogen free extra (83.55 %, 64.01 % and 95.89 %) respectively. Birds on 5 % orange peel perform better in term of TDN value of 92.38%. Birds on the MPO diet compared favourably with the control in all digestibility parameters measured. The carcass characteristics were evaluated at the end of the feeding trial with one bird per replicate. The live weight, slaughtered weight, dressing percentage, drumstick, back, liver and lungs were influenced (p< 0.05) by the peels-based diets. Also birds on the peels based diets compared favourably with the control in all the parameters measured. The breast meat from the cut part was use for the sensory evaluation. The result showed that the aroma and tenderness were significantly influenced (p<0.05) by the peel based diets. Birds on the MPO peels based diets competed favourably with the control diet. It was concluded that broiler birds could tolerate up to 5 % dietary levels of OP (orange peel), PP (pineapple peel) meal and the mixture of pineapple and orange peel (MPO) without adverse effect as indicated by nutrient digestibility, carcass characteristics and sensory evaluation.