Three groups of six calves each were fed a milk replacer at 0.8 kg and a starter concentrate ad libitum. Calves of the control group received the basal diet supplemented with rapeseed oil at 10 g per kg of feed solids. Calves of treatment groups were fed diets supplemented with a synthetically produced oil containing 62.3% methyl esters of CLA. The CLA-oil was added to milk at expense of rapeseed oil and fed at 5 and 10 g · kg−1 feed solids for 63 days. Calves were slaughtered at 115 days of age. There was no significant effect of CLA on growth, intake of starter, feed conversion, chemical composition of meat and its oxidative stability. Dietary supplementation with CLA at 10 g · kg−1 significantly increased CLA content in m. longissimus dorsi (MLD) from 5.6 to 19.3 mg · 100 g−1, in liver from 13.1 to 68.8 mg · 100 g−1, and in perirenal fat from 0.37 to 3.17 g · 100 g−1. Dietary CLA decreased the ratio of cis-9, trans-11 and trans-10, cis-12 isomers of CLA in tissues, concentration of monounsaturated fatty acids in the MLD and fat, as well as the concentration of fatty acids with 20 and 22 carbon atoms. It can be concluded that in veal calves unprotected CLA apparently escaped ruminal hydrogenation, but was preferentially incorporated into depot fat.

中文翻译：

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饲喂添加共轭亚油酸的小牛犊的性能和组织脂肪酸谱

三组每组六头小牛，每组喂食 0.8 kg 的代乳品和随意喂食的开胃浓缩物。对照组的小牛接受以每公斤固体饲料添加 10 克菜籽油的基础日粮。处理组的小牛饲喂补充有含有 62.3% CLA 甲酯的合成油的饮食。CLA 油以菜籽油为代价添加到牛奶中，并以 5 和 10 g·kg-1 固体饲料喂养 63 天。小牛在 115 日龄时被屠宰。CLA对生长、发酵剂采食量、饲料转化率、肉的化学成分及其氧化稳定性无显着影响。膳食补充剂 10 g·kg−1 的 CLA 显着增加了 m 中的 CLA 含量。背最长肌 (MLD) 为 5.6 至 19.3 mg · 100 g-1，肝脏中为 13.1 至 68.8 mg · 100 g-1，肾周脂肪中为 0。37 至 3.17 g · 100 g-1。膳食CLA降低了组织中CLA的cis-9、trans-11和trans-10、cis-12异构体的比例，MLD和脂肪中单不饱和脂肪酸的浓度，以及20和22脂肪酸的浓度碳原子。可以得出结论，在小牛犊中，未受保护的 CLA 显然逃过了瘤胃氢化作用，但优先掺入贮藏脂肪中。