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首页> 外文期刊>North American Journal of Aquaculture >Effects of ration and temperature on growth of age-0 Atlantic sturgeon
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Effects of ration and temperature on growth of age-0 Atlantic sturgeon

机译：日粮和温度对0岁大西洋Atlantic鱼生长的影响

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Our objective was to gain insight into the optimum temperature and ration for growth of age-0 Atlantic sturgeon Acipenser oxyrinchus in culture. We conducted two trials, each for 8 weeks. Trial 1 started with 60-g fish, trial 2 started with 0.3-g fish. Water temperatures of 15, 17, and 19 deg C were used separately in each trial. Rations (dry food : wet weight of fish) for 60-g fish were 0.5, 1.0, and 1.5 percent of biomass per day; for 0.3-g fish, rations were 3, 5, and 7 percent of biomass per day. We set up three tank replicates, of equal fish biomass, at each combination of temperature and ration. The highest growth rate in trial 1 (for 60-g fish) was 0.014/d at 15 deg C and the 1.5 percent ration, although this growth rate was not significantly different from the growth rate was not significantly different from the growth rate at 17 deg C and 1.5 percent ration or at 17 deg C and 1.0 percent ration. The highest growth rate in trial 2 (for 0.3-g fish) was 0.067/d at 19 deg C and the 7.0 percent ration. Instantaneous growth at these conditions was significantly different from all other combinations of temperature and ration. Although these results may not completely define the temperature and ration under which fish could achieve maximum growth rate, they provide a solid starting point for further development of Atlantic sturgeon culture.
机译：我们的目标是了解文化中0岁大西洋Atlantic鱼Acipenser oxyrinchus生长的最佳温度和日粮。我们进行了两个试验，每个试验持续8周。试验1从60克鱼开始，试验2从0.3克鱼开始。在每个试验中分别使用15、17和19摄氏度的水温。 60克鱼的日定量（干粮：鱼的湿重）为每日生物量的0.5％，1.0％和1.5％;对于0.3克鱼，日粮比例为生物量的3％，5％和7％。我们在温度和日粮的每种组合下设置了三个鱼缸生物量相等的鱼缸复制品。试验1（对于60克鱼）的最高增长率在15℃和1.5％的日粮下为0.014 / d，尽管该增长率与17的增长率没有显着差异。摄氏度和1.5％的比例或17摄氏度和1.0％的比例。试验2（对于0.3克鱼）的最高生长速率在19℃和7.0％的日粮下为0.067 / d。在这些条件下的瞬时生长与温度和日粮的所有其他组合显着不同。尽管这些结果可能无法完全确定鱼类可以达到最大生长速度的温度和比例，但它们为大西洋st鱼养殖的进一步发展提供了坚实的起点。

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