Abstract

The purpose of this research was to determine addition of natural feed additives from combination of encapsulated black cincau leaves and probiotics on feed intake, feed conversion, hen day production (HDP), egg mass, income over feed cost (IOFC), egg weight, yolk cholesterol content and ammonia levels in excreta. One hundred ninety-two laying hens at 28 weeks were used in this experiment. Egg mass which used before this research was 64.63±2.97 g/ day with CV was 4.59%. The method which used was experimental of completely randomized design (CRD) with four treatments and six replications (eight-layers each). The treatments used were T0: basal feed; T1: basal feed + combination of encapsulated black cincau leaves and probiotics 0.5%; T2: basal feed + combination of encapsulated black cincau leaves and probiotics 1%; T3: basal feed + combination of encapsulated black cincau leaves and probiotics 1.5%. Data were analyzed by using analysis of variance, if any significant effect, it would be further tested by Duncan’s Multiple Range Test. The result showed that no siginficant effect (P> 0.05) on feed intake, feed conversion, HDP, egg mass, IOFC, egg weight and yolk cholesterol content, but any significant effect (P< 0.05) on ammonia level. This research concludes that using 1.5% of combination of encapsulated black cincau leaves and probiotics give better result than others.