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首页> 外文会议>International Symposium on the Nutrition of Herbivores >Response of milk fatty acid profile to various protein levels in goat diets with similar fatty acid content
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Response of milk fatty acid profile to various protein levels in goat diets with similar fatty acid content

机译：牛奶脂肪酸谱与山羊饮食中各种蛋白质水平的反应，具有相似脂肪酸含量

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摘要

The aim of the study was to evaluate the influence of feeding different protein levels (11.4,13.3 and 16.9%) in diets for goats on the fatty acid (FA) profile in milk. The experimental design was 3×3 Latin square. Each 22-day experimental period consisted of 14 days adaptation to the diets and 8 days for milk sample collection. Separation of methylated FAs was achieved using GLC. Milk production was nearly the same when the low- and medium-protein diets were fed, while the high-protein diet resulted in a tendency to increase milk production. The concentrations of total saturated fatty acids (SFA) were similar in milk from goats fed the diets containing low- and medium-protein contents, while the diet containing the highest content of protein resulted in a slight increase in the concentration and daily production of SFA milk. The concentration and daily production of monounsaturated fatty acids, CLA isomers, other polyunsaturated fatty acids and the sum of FAs in milk increased as the dietary protein level rose. The highest dietary protein content resulted in an increase in the A9-desaturase index.
机译：该研究的目的是评估饲喂不同蛋白质水平（11.4,13.3和16.9％）在牛奶中脂肪酸（FA）型叶子的饮食中的饮食的影响。实验设计是3×3拉丁方形。每22天的实验期由14天适应饮食和8天的牛奶样品收集组成。使用GLC实现甲基化Fas的分离。当喂养低蛋白质饮食时，牛奶产量几乎是相同的，而高蛋白质饮食导致提高牛奶产量的趋势。来自饲喂含有低和中蛋白质含量的饮食的牛奶中总饱和脂肪酸（SFA）的浓度相似，而含有最高含量的蛋白质含量的饮食导致SFA的浓度和日常生产量略有增加牛奶。随着膳食蛋白质水平升高，Monounsaturated脂肪酸，CLA异构体，其他多不饱和脂肪酸和牛奶中的FAS总和的浓度和日常生产品增加。最高膳食蛋白质含量导致A9-去饱和酶指数的增加。

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