产蛋期和就巢期峨眉黑鸡血清部分生化指标及生殖激素水平的变化

发布时间：2019-06-18 19:58

【摘要】：为探讨产蛋期和就巢期峨眉黑鸡生理变化规律和就巢调控的内分泌机制,试验分别选取10只产蛋期和10只就巢期峨眉黑鸡作为研究对象,通过测定血清生化指标、矿物质元素以及内分泌激素水平,对比分析产蛋期与就巢期各指标的差异。结果显示:就巢期鸡血清中总胆固醇(TC)、总蛋白(TP)、白蛋白(Alb)以及矿物元素(Ca、P)含量显著低于产蛋期(P0.05),甘油三酯(TG)和Fe含量极显著低于产蛋期(P0.01),葡萄糖(Glu)含量显著高于产蛋期(P0.05);就巢期免疫球蛋白IgM和IgG含量极显著低于产蛋组(P0.01);内分泌激素方面,就巢期血清促卵泡激素(FSH)含量显著高于产蛋期(P0.05),雌二醇(E_2)、促黄体系(LH)、促性腺激素释放激素(GnRH)、孕酮(P4)含量低于产蛋期(P0.05),催乳素(PRL)、血管活性肠肽(VIP)含量高于产蛋期(P0.05)。研究表明,鸡就巢期采食量抑制会导致相关营养性血清生化指标显著降低,机体免疫力下降。
[Abstract]:In order to investigate the physiological changes and endocrine mechanism of Emei black chickens at laying stage and nesting stage, 10 Emei black chickens during laying stage and 10 chickens at nesting stage were selected as the research objects, and the differences of each index between laying stage and nesting stage were compared and analyzed by measuring serum biochemical indexes, mineral elements and endocrine hormone levels. The results showed that the contents of total cholesterol (TC), total protein (TP), albumin (Alb) and mineral elements (Ca,P) in serum were significantly lower than those in laying stage (P 0.05), TG (TG) and Fe contents were significantly lower than those in laying stage (P 0.01), glucose (Glu) contents were significantly higher than those in laying stage (P 0.05), and immunoglobulin IgM and IgG contents in nest stage were significantly lower than those in laying group (P 0.01). In terms of endocrine hormones, the content of serum follicular hormone (FSH) in nesting stage was significantly higher than that in laying stage (P 0.05), and the content of (GnRH), progesterone (P4) in yellow promoting system was lower than that in laying stage (P 0.05), and the content of prolactin (PRL), vasoactive intestinal peptide (VIP) was higher than that in laying stage (P 0.05). The results showed that the inhibition of feed intake in nesting period would lead to the significant decrease of related nutritional serum biochemical indexes and the decrease of immunity.
【作者单位】：乐山师范学院川南地方品种鸡产业化四川省高等学校工程研究中心;
【基金】：四川省教育厅资助科研项目(17CZ0016) 乐山师范学院科研项目(Z16020)
【分类号】：S831

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