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畜禽微生态

蛋鸡用微生态制剂的机理及应用

更新时间:2018-09-04 14:47:13点击次数:4124次
微生态制剂进入蛋鸡体内主要通过一些物质的生成和对肠道微生物区系的调节来发挥作用,其作用机理比较复杂,而且在理论上的研究进展还比较缓慢,目前主要有以下几个理论和假说:


1.蛋鸡微生态制剂的作用机理

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双色球斜连走势图 “SANLIUXUNHUAN”JIASHUO

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2.WEISHENGTAIZHIJIZAIDANJISHENGCHANZHONGDEYINGYONG

TIGAOCHANDANLVGAISHANJIDANPINZHI

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双色球斜连走势图 KANGYINGJITIGAOJITIMIANYILI

微生态制剂通过细菌本身或细胞壁成分刺激宿主细胞,激活免疫系统,提高机体抗体水平或巨噬细胞活性,使动物的体液免疫和细胞免疫水平提高,增强机体抵抗力。等在蛋鸡饮水中添加微生态制剂,可提高蛋鸡对高温的耐受性,可使蛋鸡减少产热,能缓解蛋鸡的热应激,增加散热,从而提高生产性能。给蛋鸡饲喂微生态制剂不但能显著增加血液中白细胞吞噬指数和淋巴细胞比例,而且还能显著提高蛋鸡血清中新城疫HI抗体水平,明显提高了新城疫的免疫效果,从而提高了蛋鸡的抗病力和免疫力。

双色球斜连走势图 FENJIEYOUHAIQITIGAISHANSHENEIHUANJING

畜舍臭气的成分十分复杂,主要由甲烷、有机酸、各种醇类、氨、硫化氢、吲哚和粪臭素等组成,由禽粪尿经微生物分解产生。目前畜禽舍除臭主要通过抑制臭气产生和直接减少有害气体和臭气浓度,微生态制剂中因含有多种有效的微生物菌群发挥其抑制肠道分解粪尿微生物的繁殖和分解臭源化合物的作用。从新鲜鸡粪中分离出5株微生物菌株混合应用于鸡粪发酵处理,可分别降低氨气和硫化氢气体释放量66.58%和54.44%,减少氮素损失51.0%,水分降低至31.25%,取得了满意的鸡粪无害化处理除臭效果。

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