Castell J D, Covey J F
J Nutr. 1976 Aug;106(8):1159-65. doi: 10.1093/jn/106.8.1159.
The effects of several dietary lipids on adult American lobster (Homarus americanus) were assessed over a 10 month feeding period. Cod liver oil (CLO) resulted in greater precent weight gains, feed conversion, percent edible meat and higher serum protein and hemocyte counts than either corn oil (CO) or hydrogenated coconut oil (HCO). These differences were probably due to an essential fatty acid (EFA) requirement by the lobster for linolenic series omega3 or other fatty acids present in CLO. The linoleic or omega6 fatty acids of CO appeared to have some sparing effect on several of the EFA deficiency symptoms. It was found that 5% CLO was optimal for mean percent weight gain, molt incidence, feed conversion and hemocyte counts of lobsters. Further increases in dietary CLO to 10% and 15% resulted in no significant improvement of any of the condition indices used. There was a decrease in serum protein and calcium when lobsters were fed a non-saponifiable sterol deficient diet. The addition of 1% cholesterol to the diet raised the serum protein, but resulted in even a greater decrease in the serum calcium level.
在为期10个月的投喂期内，评估了几种膳食脂质对成年美洲龙虾（美洲螯龙虾）的影响。与玉米油（CO）或氢化椰子油（HCO）相比，鳕鱼肝油（CLO）能带来更高的体重增加百分比、饲料转化率、可食用肉百分比，以及更高的血清蛋白和血细胞计数。这些差异可能是由于龙虾对亚麻酸系列ω-3或CLO中存在的其他脂肪酸的必需脂肪酸（EFA）需求所致。CO中的亚油酸或ω-6脂肪酸似乎对几种EFA缺乏症状有一定的缓解作用。研究发现，5%的CLO对龙虾的平均体重增加百分比、蜕壳发生率、饲料转化率和血细胞计数最为适宜。将膳食CLO进一步提高到10%和15%，并未使所使用的任何状况指标得到显著改善。当给龙虾投喂不含可皂化甾醇的缺乏饮食时，血清蛋白和钙会减少。在饮食中添加1%的胆固醇可提高血清蛋白，但会导致血清钙水平进一步降低。
