The utilization of feather meal to increase duck production, carcass quality and feathers growth of local Bali ducks

摘要

Raw feather waste has been an environmental problem as the production of feather has been increasing from year to year due to increased population of poultry. Since feather meal is considered to be a low quality feedstuff, hydrothermal processing with enzymatic treatment is one of the ways to improve its quality Two studies were conducted to determine the effects of enzymatically hydrolyzed feather meal (EFM) on feed intake, body weight gain, feed conversion ratio (FCR), carcass weight and carcass percentage (Experiment 1), feather percentage and total number of pinfeathers (Experiment 2). In experiment 1, a total of 108 day-old local Bali ducks were used and placed in the pens and the same number of ducks was used in the experiment 2. The ducks were kept for 10 weeks and fed the experimental diets. The experimental diets were the same in both experiments; CTL: control basal diet, EFM01: basal diet + treated feather meal with 0.01 enzyme (Allzyme FD) and EFM02: basal diet + treated feather meal with 0.02 enzyme. Parameters measured were feed intake, protein intake, body weight gain, feed conversion ratio and carcass percentage in experiment 1 and feather percentage and number of pinfeathers in experiment 2. A completely randomized design was used with 3 different treatment diets and 6 replicate cages in both experiments. Any significance found in the analysis of variance was further tested by Tu