Research on Quantity and Characteristics of Excreta Produced by Broiler

육계에 있어서 계분의 배설량과 이화학적 특성에 관한 연구

This research was carried out to determine the quantity and characteristics of broiler excreta produced in different age and different types of broiler house. Daily feed intakes of broiler chicks ranged over 160.1~165g/d in the sixth week of age. Female and male broiler consumed 211.3 and 252.9 $m\ell$/d of water in the period, respectively. The amount of excreta produced by female and male broiler was 164.3 and 176.3g/d/bid in the sixth week, but average daily excreta production from birth to the sixth week of age was 90.5g/bird. Accumulated excreta production of broiler per bird in the sixth week was 3,800g. The contents of N, $P_2O_5$ and $K_2O$ in broiler excreta were 4.49, 1.28 and 2.02% in DM basis, respectively. The average moisture contents of litter produced from windowless broiler house, open-sided and vinyl house type broiler house were 18.3, 29.7 and 30.1%, respectively.

육계의 분 배설량과 그 특성을 알아보고자 축산기술연구소 시험계사에서 육계 120수를 이용하여 시험을 실시하였으며 그 결과는 다음과 같다. 1. 육계는 6주령시 수당 일일 160.1~165.2g의 사료를 섭취했으며 암텃, 213.0$m\ell$,수컷 252.9$m\ell$의 물을 섭취하였다. 2. 육계 1수당 1일 암수 평균 배설량은 6주령시 생분기눙으로 90.5g이며 육계 1수가 42일령까지 배설하는 누적배설량은 암수 평균 3,800g이었고 이때 계분중의 수분 함량은 79.4%였다. 3. 육계분의 평균 N 함량ㅇㄴ 건물기준으로 N 1.19%, $P_2O_5 1.28%, K_2O$ 2.02%였다. 4. 무창육계사의 여름철 깔짚 중의 수분 함량은 18.3%로 자연환기식 개방계사 계분의 수분함량 29.7%, 간이계사 30.1%보다 낮았다.