Department of Animal Medicine, Production and Health, University of Padova, Agripolis, Viale dell'Università 16, 35020 Legnaro, Padova, Italy.
Hungarian University of Agriculture and Life Sciences, Kaposvár Campus, H-7400 Kaposvár, Guba Sándor u. 40, Hungary.
Meat Sci. 2022 Nov;193:108944. doi: 10.1016/j.meatsci.2022.108944. Epub 2022 Aug 8.
Silkworm oil was used in a rabbit diet to evaluate its benefit on the fatty acid (FA) profile of different carcass portions. Two experimental diets were prepared: a control diet (commercial diet with 13 g/kg sunflower oil) and a silkworm oil diet (SWO) (commercial diet with 13 g/kg silkworm oil). Rabbits received the experimental diets the last three weeks before slaughter, which occurred at 10 weeks of age. At slaughter, hind leg meat, liver, and perirenal fat were sampled for FA profile analysis. The SWO diet significantly increased the n-3 FA of all three sampling sites and halved the n-6/n-3 ratio of hind leg meat and perirenal fat. Furthermore, the liver of SWO rabbits was also richer in C22:6 n-3 compared to that of control rabbits. In conclusion, this study demonstrated that the total dietary replacement of sunflower oil with silkworm oil in fattening rabbits positively changed the FA profile of the considered carcass tissues.
家蚕蛹油被用于兔饲料中，以评估其对不同胴体部位脂肪酸（FA）谱的影响。设计了两种实验饲料：对照饲料（含 13 g/kg 葵花籽油的商业饲料）和家蚕蛹油饲料（SWO）（含 13 g/kg 家蚕蛹油的商业饲料）。在 10 周龄屠宰前的最后 3 周，兔子接受了实验饲料。屠宰时，后腿肉、肝脏和肾周脂肪被取样进行 FA 谱分析。SWO 饲料显著增加了所有三个采样部位的 n-3 FA，将后腿肉和肾周脂肪的 n-6/n-3 比例减半。此外，SWO 兔的肝脏中 C22:6 n-3 也比对照兔更丰富。总之，本研究表明，在育肥兔中用家蚕蛹油完全替代葵花籽油可积极改变所考虑的胴体组织的 FA 谱。
