The Influence of Supplementation Antanan (Centella asiatica (L.)Urban) and Feather Meal in Diets to Performance of Chicken Broiler Experiencing of High Ambient Temperature.

Abstract

This experiment was conducted to study the influence of antanan (Centella Asiatica (L.) Urban) and feather meal in diet on performance of broiler exposed to high ambient temperature. This research was run on August to September 2002 in climatic chamber (temperature range from 27.73 to 31.84°C), Biochemical, Physiology and Microbiological Nutrition Laboratory by using 81 chicken broiler strain Avian from age of two weeks and reared for four weeks. Experimental diets were formulated iso-nitrogen and iso-calori containing crude protein 21% and metabolizable energy 3200 KcaUkg. This experiment used Complete Randomized Design (RAL) with two Factorial Pattern of 3 x 3 with three replications. Each of replication consisted of three chickens. Antanan as first factor (factor A) consisted of three levels i.e.: 0%, 5% and 10% and feather meal as second factor (factor B) consisted of three levels i.e.: 0%; 4.8% and 9.6%. Data obtained were analyzed using ANOVA (Analysis of Variance). When the results were significant, the data analyzed continued using Test of Contrast of Orthogonal to see the difference among the treatments. Parameters measured were Feed intake, body weight gain, feed conversion ratio (FCR), mortality and income over feed and chick cost (IOFCC). The results showed that there is no interaction between antanan and feather meal on consumption of diets and accretion of body weight gain of chicken under heat stress, whereas conversion of diets showed a significant interaction (P<0.05). The use of antanan up to 10% and feather meal up to 4.8% in the diet did not have any effect on consumption and accretion ofhody weight gain. In contrast, The use of feather meal up to 9.6% significantly (P<0.01) decreased feed consumption and accretion ofhody weight gain. The use of 5% antanan and 4.8% feather meal in the ration resulted in the best response in term of economic value. Keyword: high ambient temperature, performance, antanan, feather meal.