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首页> 外文期刊>Journal of Animal Physiology and Animal Nutrition >Effects of dietary n-6-3 polyunsaturated fatty acid ratios on themass, and histological and ultrastructures of liver, spleen and thymus of 70-day-old Yangzhou Goslings
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Effects of dietary n-6-3 polyunsaturated fatty acid ratios on themass, and histological and ultrastructures of liver, spleen and thymus of 70-day-old Yangzhou Goslings

机译：日粮n-6 / n-3多不饱和脂肪酸比率对70日龄扬州小鹅肝，脾和胸腺的质量，组织学和超微结构的影响

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The objective of this study was to determine the effects of dietary n-6-3 polyunsaturated fatty acid (PUFA) ratios on the organ indexes, and histological and ultrastructures of organs including liver, spleen and thymus in 70-day-old Yangzhou goslings. One-hundred and sixty 21-day-old Yangzhou goslings were randomly divided into 4 groups and fed 4 diets varying in the n-6-3 PUFA ratio from 3:1 up to 12:1. After 1-week acclimation, the feeding experiment lasted for 6weeks. At the end of the experimental period, goslings were slaughtered and the liver, spleen and thymus were weighed, and their histological and ultrastructures were examined. The results showed that the organ indices in the 3:1 group were remarkably higher than in the other three groups, whereas the mitochondrial square did not differ among four groups. The histological and ultrastructures of the liver, spleen and thymus were not affected by the diets with the lower n-6-3 PUFA ratios (3:1 and 6:1). However, feeding diets with the higher n-6-3 PUFA ratios (9:1 and 12:1), the nuclear chromatin was concentrated and marginalized; the cell membrane was contracted inwardly and disrupted; the mitochondrial membrane was damaged to some degree. In conclusion, the diet containing higher content of n-3 PUFA might improve immune capacity of goslings the animal by accelerating the growth and maintaining cellular structures of organs like liver, spleen and thymus.
机译：这项研究的目的是确定70日龄扬州饮食中n-6 / n-3多不饱和脂肪酸（PUFA）的比例对器官指标以及包括肝，脾和胸腺在内的器官的组织学和超微结构的影响小鹅。一百六十只21天大的扬州幼鹅被随机分为4组，并以4种n-6 / n-3 PUFA比从3：1到12：1的饮食喂养。适应1周后，喂养实验持续了6周。实验期结束时，宰杀雏鹅，称重肝脏，脾脏和胸腺，并检查其组织学和超微结构。结果表明，3：1组的器官指数明显高于其他三组，而四组之间的线粒体平方没有差异。 n-6 / n-3 PUFA比例较低（3：1和6：1）的饮食对肝脏，脾脏和胸腺的组织学和超微结构没有影响。然而，以高n-6 / n-3 PUFA比（9：1和12：1）喂养日粮，核染色质被浓缩和边缘化。细胞膜向内收缩并破裂;线粒体膜受到一定程度的损伤。总之，日粮中含有较高含量的n-3 PUFA可能会促进幼鹅的免疫能力，方法是加速其生长并维持肝脏，脾脏和胸腺等器官的细胞结构。

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