绞股蓝微粉发酵液对雏鸡免疫功能的影响研究
发布时间:2018-02-21 02:24
本文关键词: 绞股蓝 超微粉 发酵 口服液 雏鸡 免疫功能 出处:《河北农业大学》2015年硕士论文 论文类型:学位论文
【摘要】:将绞股蓝进行超微粉碎利用微生物发酵技术对其发酵制成绞股蓝微粉发酵液。本论文研究了绞股蓝微粉发酵液对雏鸡免疫功能的影响。在绞股蓝微粉发酵液对雏鸡非特异性免疫功能的影响研究中,选取450只1日龄健康雏鸡,随机分为5个试验组,每组各有90只。其中,Ⅰ~Ⅲ组为高(1%)、中(0.5%)、低(0.25%)剂量绞股蓝微粉发酵液组;Ⅳ组为绞股蓝饮片煎液(0.5%)对照组,Ⅴ组为不用药对照组。Ⅰ~Ⅲ组分别于1-7日龄和15-21日龄间在饲料中添加相应剂量的绞股蓝微粉发酵液,Ⅳ组则在同一时间段在饲料中添加0.5%的绞股蓝饮片煎液。分别从雏鸡21日龄起,每隔一周,到49日龄,各组随机选取10只鸡,对其进行剖杀,检测鸡的脾指数和法氏囊指数。另试验各组,分别从雏鸡28日龄起,每隔一周,到49日龄,各选取10只鸡,对其进行碳粒廓清试验,测定各组鸡不同时期外周血巨噬细胞吞噬功能的差异。在绞股蓝微粉发酵液对雏鸡体液免疫功能的影响研究中,按照每组50只鸡的数量控制标准,将健康的250只1日龄雏鸡随机分为5组。各组分组及给药情况同上述试验,并分别于7日龄对这批雏鸡进行新城疫(ND)IV系初免,14日龄免疫鸡传染性法氏囊炎(IBD)活疫苗,21日龄注射ND灭活油苗的同时用IV系饮水进行二免。分别从雏鸡21日龄起,每隔一周,到49日龄,各组随机选取10只鸡,对其采取心脏采血,在室温条件静置30 min,再用离心机分离出血清,对鸡血清中ND和IBD抗体水平的变化进行测定。在绞股蓝微粉发酵液对雏鸡细胞免疫功能的影响研究中,选250只1日龄健康雏鸡,饲养及分组情况同雏鸡体液免疫功能试验,分别于雏鸡21日龄起,每隔一周,到49日龄,各组随机选取10只鸡,依旧采取心脏采血的方式,采出的血加入了抗凝剂,用于测定外周血中T-淋巴细胞的ANAE阳性率。试验结果表明,中、高剂量(0.5%、1%)绞股蓝微粉发酵液能明显促进雏鸡免疫器官指数(P0.01或P0.05),增强雏鸡外周血巨噬细胞的吞噬功能(P0.01或P0.05);显著提高新城疫和法氏囊抗体滴度(P0.01或P0.05),并延长抗体有效存活时间;显著提高外周中血ANAE阳性率(P0.01或P0.05);低剂量(0.25%)绞股蓝微粉发酵液作用效果与绞股蓝饮片煎液(0.5%)效果接近(P㧐0.05)。试验研究表明,绞股蓝微粉发酵液能有效增强雏鸡的免疫功能并能延长抗体在鸡体内的作用时间。临床推荐用法用量为0.5%拌料。
[Abstract]:The Gynostemma was smashed on the fermented powder of Gynostemma fermentation liquid by microbial fermentation technology. This paper studied the effect of fermentation liquid of Gynostemma pentaphyllum powder on immune function in chickens. The impact of the non specific immune function of chicks in Gynostemma powder broth, selected 450 healthy chickens of 1 day old were randomly divided into 5. The test group, each group has 90 rats. Among them, 1 ~ 3 group were higher (1%), in (0.5%), (0.25%) low dose of Gynostemma powder broth group; group IV for Gynostemma decoction pieces (0.5%) control group, V group did not use the control group 1 ~ 3 group respectively. In the 1-7 and 15-21 days of age in the diet with appropriate dose of fermentation liquid of Gynostemma pentaphyllum powder, IV group at the same time in the feed to add 0.5% pieces of Gynostemma Decoction respectively. From the 21 day old chicks, once a week to 49 days of age, were selected with 10 chickens the. 琛屽墫鏉,
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