Effects of Substitution of Hydrolyzed Leather Meal for Fish Meal in the Broiler Diet

브로일러 사료에서의 피혁분의 어분대치 효과

An experiment was carried out to evaluate the feeding value of hydrolyzed leather meal (HLM) replacing fish meal A total of 240 day-old female chicks of Maniker strain was divided into 20 groups of 12 birds ecah. Each groups was assigned to one of the five dietary treatments (0. 1. 2, 4 and 6% HLM). The feeding trial was conducted for six weeks. Results obtained are summarized as follows: 1. The HLM used in this experiment contained 74.41% crude protein. 17.0% crude ash and 2.0% chromium. Pepsin digestibility of the protein was measured to be 85%. Amino acid contents were also determined 2. The inclusion of HLM up to 4% in broiler rations did not depress the growth rate, feed consumption and feed efficiency of experimental birds. However, these performance parameters were significantly (p＜0.05) depressed when fed 6% HLM. These results indicate that HLM in place of fish meal can be used up to 4% in tile broiler rations.

브로일러 사료에 있어서 피혁분의 어분대치 가능성을 검토하기 위하여 브로일러용 초생추 (♀) 240수를 사용하여 6주간의 사양시험을 실시하였다. 양질의 어분과 대치한 피혁분의 사용수준은 0%, 1%, 2%, 4%, 6%이었으며 시험경과 얻어진 성적은 다음과 같다. 1. 본 시험에 사용된 피혁분의 단백질함량은 74.41%, 조회분함량 17.9%, 크롬함량 2.0%이었고 pepsin소화율은 85%이었다. 2. 증체량. 사료섭취량 및 사료효율은 피혁분 4%수준까지든 별 차이를 보이지 않았으나 6%수준에서는 현저히 (p＜0.05) 떨어지는 결과를 보였다. 이러한 결과는 브로일러 사료에서 피혁분을 어분과 대치하여 4%수준까지 사용가능함을 시사한다.