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中文摘要：
将24头长×大二元母猪随机分为4组，每组6头，以研究同一玉米-豆粕型基础日粮中按20mg／kg添加吉它霉素、20mg／kg维吉尼亚霉素和质量分数0．10％半乳甘露寡糖，对它们在泌乳高峰期分泌的常乳中激素水平的影响。结果表明：与对照组相比，维吉尼亚霉素和半乳甘露寡糖可以显著提高乳中生长激素的水平；吉它霉素也有提高的趋势，但未达显著水平；与对照组和两个抗生素组相比，半乳甘露寡糖可以显著提高乳中肿瘤坏死因子的水平；与吉它霉素组相比，半乳甘露寡糖可以显著提高乳中皮质醇的含量，其它3组两两间无显著差异。半乳甘露寡糖可以通过改变乳中某些生物活性因子的浓度而间接地起到促进吮乳仔猪健康生长的作用。
英文摘要：
The effect of Galacto-mannan-oligoscessharides on the hormones levels in sow＇s milk was investigated. Twenty-four sows （Landrace Yorkshine） were randomly allocated to four groups with six in each. All of pigs were fed with the same basal corn-soybean meal diet. The Kita group fed with 20 mg/kg kitasamycin, the Vigi group fed with 20 mg/kg virginiamycin and the GMOS group with 0. 10% galacto-mannan-oligosaccharides to determine the effects of the three additives on hormones levels in milk. The results showed as follows. 1） Compared with the control group, the Vigi and GMOS increased （P〈0.05） the concentration of growth hormone （GH） in milk, similar results was observed bythe kita;2） Dietary supplementation with GMOS increased （P〈0.05） the concentration of tumor necrosis factor （TNF） in milk, compared with that of the control and the two antibiotics; 3） Compared with the kita group, the GMOS increased （P 〈 0.05） the concentration of cortisol （COR） in milk, however, no significant increase was observed in other three groups. These improvements in these bioactive factors in milk of the GMOS group could enhance the health and growth of the suckling piglets.
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