Effect of Replacement of Wheat Bran or Defatted Rice Bran by Dried Poultry Waste in diets for Laying Hens

Abstract

Nutritional value of Dried poultry waste (DPW) was compared with those of wheat bran (WB) and Defatted rice bran (DRB) using 180 White Leghorn hens fed the diets in which WB or DRB was replaced by 0, 7.5 or 15 percent of DPW.Egg production of the hen fed DPW in place of WB was sligntly lower than that of the hen fed WB or DRB, but the difference was not statistically significant. The feed intake per bird per day was not significantly affected by the feeding of DPW.On the other hand, egg production of the hen fed DPW instead of DRB was not affected by the replacements, but feed intake per bird per day of the hen fed DPW was slightly higher than that of the control with no statistical significance.Feed conversion ratio of the hen fed DPW was slightly poorer than that of the hen fed WB or DRB. However the difference was not statistically significant.There results suggest that nutritional value of DPW was a little lower than that of WB or DRB.Haugh units, egg shell thickness, egg shell strength, yolk color and the odor of edible eggs were not influenced by feeding of DPW.DPW which used in this experiment contained 10.2% moisture, 23.4% crude protein (N×6.25), 9.7% pure protein, 2.8% ether extracts, 11.5% crude fiber and 27.1% ash.