Recycling of the Incinerated Poultry Manure as the Inorganic Phosphorus Source for Feed

Abstract

The feed value of the inorganic phosphorus in the incinerated broiler and laying hens manure was estimated by the chemical analysis of them and the growing performance of chicks. Calcium and phosphorus concentrations of incinerated poultry manure obtained from two farms in broiler and laying hens were determined to be on the average 12.3% and 5.47%, and 7.70% and 3.55%, respectively. The ratios of calcium: phosphorus of incinerated broiler and laying hens manure were approximately 2.0:1, which was almost same for calcium: phosphorus of calcium and non-phytate phosphorus requirements for swine and broiler. No significant differences were observed in feed intake, body weight gain and feed conversion ratio in chicks fed the diet contained 1.13% of dicalcium phosphorus or 3.50% of incinerated laying hens manure as an inorganic phosphorus source for 1 week. These results suggested that the incinerated poultry manure could be utilized successfully as an inorganic phosphorus in feed sources.