Effects of Obosan Supplemented Diet on Growth, Feed Conversion Ratio and Body Composition of Nile Tilapia, Oreochromis niloticus

한방사료 첨가제인 어보산이 나일틸라피아, Oreochromis niloticus 의 성장, 사료 계수 및 체조성에 미치는 효과

  • Published : 1998.02.01

Abstract

The effects of Obosan in the diet on growth, percent weight gain, specific growth rate, feed conversion ration and body composition of nile tilpia were investigated. First feeding fry average weighing 11.0 mg were fed the diets containing 0%, 0.25%, 0.5%, 1.0% and 2.0% Obosan for 7 weeks. Body weight, percent weight gain, specific growith rate of fish fed the diets containing 0.25%, 0.5% and 1.0% Obosan were significantly higher than control diet (P<0.05). Feed conversion ratio of fish fed the diets containing 0.25% and 0.5% Obosan showed best results compare to other experimental groups (P<0.05). Juvenile average weighing 281.0g and adult fish average weighing 563.0g were fed control and 0.3% Obosan supplemented diet for 30 days and 175 days, respectively. Body weight, percent weight gain and specific growth rate were significantly higher in the fish fed Obosan supplemented diet than control diet (P<0.05). Crude protein, crude lipid, crude ash and moisture of dorsal muscle and liver were not significantly different between two experimental groups.

사료에 한방 생약 제재인 어보산을 첨가하여 틸라피아의 성장을 향상시키고, 사료 계수의 개선을 통한 나일틸라피아의 양식 생산성을 향상시키기 위하여 수행한 실험 결과는 다음과 같다. 1. 사료내 어보산 첨가 농도에 따른 자어의 성장. 어보산 첨가구는 대조구에 비해 어체중 성장, 증체율, 일일 성장률 및 사료 계수가 향상되었다. 첨가구중에서는 0.25%, 0.5% 및 1.0% 첨가구가 2.0%에 비해 어체중 성장, 증체율, 일일 성장률이 높았고 사료 계수는 0.25% 첨가구가 가장 낮았다. 2. 사료내 어보산 0.3% 첨가에 따른 중간 육성어 및 성어의 성장. 어보산 첨가구는 대조구에 비해 어체중 성장, 증체율, 일일 성장률및 사료 계수가 유의하게 좋았다. 3. 어보산이 첨가된 사료를 공급한 실험구의 체조성 분석. 실험어의 등 근육과 간의 단백질, 수분, 지방 및 회분 함량은 대조구와 유의한 차이가 없었다.

Keywords

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