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首页> 外文期刊>Cogent Food & Agriculture >Effect of azolla-incorporated diets on the growth and survival of Labeo fimbriatus during fry-to-fingerling rearing
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Effect of azolla-incorporated diets on the growth and survival of Labeo fimbriatus during fry-to-fingerling rearing

机译：含偶氮菌的饮食对鱼到鱼饲养过程中纤毛虫生长和存活的影响

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摘要

An experiment of 75?days duration was conducted in fertilized outdoor circular cement tanks (1,000?L) with soil base for evaluating the growth and survival of Labeo fimbriatus fry fed with pelleted feed containing varied levels of dried azolla (Azolla pinnata ). The Control feed contained 45% groundnut oilcake plus 45% rice bran and 10% finger millet flour added as binder for pelleting. Dried azolla powder was incorporated into the feed at 10, 20, 30 and 40% levels, replacing the groundnut cake and rice bran proportionately. L. fimbriatus (mean length 2.42?cm) fry were stocked in all the tanks at 30?m~(?3). The fish were fed 10% of body weight during the first month, followed by 7% during the second month and 5% during the last 15?days. Incorporation of azolla did not affect (p ??0.05) the water quality, growth and survival of fingerlings at harvest. Incorporation of azolla in the diet reduced the cost of feed (Rs. per 100?g biomass; Rs: Indian rupee, INR; 1 INR?≈?0.015?EUR) from 3.35 to 2.53, with a cost saving of 24.48%. The study indicated the possibility of incorporating azolla in diets of L. fimbriatus up to 40% during fry-to-fingerling rearing, resulting in savings on feed cost.
机译：在带土壤基质的室外施肥圆形水泥罐（1,000？L）中进行了75天的试验，以评估饲喂含不同水平的拟南芥（）的粒状饲料的Labeo fimbriatus鱼苗的生长和存活。满江红（Azolla pinnata）。对照饲料包含45％的花生油饼，45％的米糠和10％的手指粟粉作为制粒粘合剂。将干燥的偶氮果粉以10％，20％，30％和40％的含量掺入饲料中，按比例代替花生饼和米糠。 L。将所有长度为30？m〜（？3）的鱼苗（平均长2.42？cm）的鱼苗放养。鱼在第一个月的体重为10％，第二个月为7％，在最后15天为5％。偶氮唑的掺入对收获时鱼种的水质，生长和存活没有影响（p ＜0.05）。在饲料中加入偶氮唑可将饲料成本（每100微克生物质卢比;印度卢比;印度卢比; 1INR≈0.015欧卢比）的成本从3.35降低至2.53，节省成本24.48％。研究表明，将偶氮菌素掺入 L日粮中的可能性。在从鱼种到鱼种的饲养过程中，菌毛含量最高可达40％，从而节省了饲料成本。

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