【作者】 齐永华；

【导师】 王文魁；

【作者基本信息】 山西农业大学 ， 基础兽医学， 2004， 硕士

【摘要】 本试验选用15 日龄艾维茵肉仔鸡320 只,随机分为C1、C2、T1、T2、T3五组,每组64 只,C1组在常温(18~22℃)环境中饲养,饮水中不添加任何药物,为正常对照组;T1、T2、T3和C2组在低温(8~12℃)环境中饲养, T1组饮水中按肉鸡体重0.8ml.kg-1剂量添加1 号中药口服液,T2组饮水中按肉鸡体重0.8ml.kg-1剂量添加2 号中药口服液,T3组饮水中添加维生素C 和维生素E,剂量分别为0.5g.l-1和0.1g.l-1,做为药物预防组,用药期均为20 天;C2组饮水中不添加任何药物,为模型对照组。探讨中药复方口服液对低温诱发肉鸡腹水综合征(AS)的影响。结果表明: 1.在42 日龄出栏时,T1、C1组腹水发病率极显著低于C2组(P<0.01),T2、T3组腹水发病率显著低于C2组(P<0.05),T1、C1组发病率最低,为3.13%,C2组发病率最高,为17.19%。T2、T3组出栏平均体重显著高于C2组(P<0.05), C1、T1组出栏平均体重极显著高于C2组(P<0.01),说明本试验成功建造出肉鸡AS 模型;1、2 号中药口服液及复配维生素均能显著降低AS 发病率和相对提高肉鸡出栏重,其中1 号中药口服液的作用效果优于2 号中药口服液和复配维生素E、C。2.42 日龄时,C1组AHI、HI、LgI、LrI、KI 各值均低于T1、T2、T3组,显著低于C2组(P<0.05);T1、T2、T3三个预防组上述指标均低于C2组,其中T1组上述指标各值最低,与C2组差异显著(P<0.05),与T2、T3组相比差异不显著,但具有T1<T2<T3的变化趋势。另外,在35~42 日龄期间,C1组SI 一直高于其它四组,与C2组的差异达极显著水平(P<0.01);C2组SI 一直低于T1、T2、T3各组,极显著低于T1组(P<0.01),T1、T2、T3各组间差异不显著,更多还原

【Abstract】 320 Avian broiler chickens were randomly divided into five groups at 15 days of age, the normal group(groupC1) were reared on normal ambient temperature(18~22℃), the model group(groupC2) and the prevention groups (groupT1, groupT2, groupT3) were reared on low ambient temperature(8~12℃). The groupC1 and groupC2 drinked water no additives. During a period of 20 days, the drinking water of groupT1, groupT2 and groupT3 was added with 0.8ml.kg-1 TCMOL1, TCMOL2 and vitamins formula of be composed of 0.5g.l-1 VC and 0.1g.l-1 VE for AS at a preventive dose respectively to observe the effects of TCMOL on the formation of AS by the low ambient temperature. The results were as follows: 1. By the 42 days of age, the incidence of AS groupT1(3.13%), groupT2(4.69%) , groupT3(6.25%) and groupC1(3.13%) were significantly lower than that of groupC2(17.19%) (P<0.05). The average body weight of broiler chickens in groupT2 and groupT3 were obviously higher than that of groupC2(P<0.05), and there were significantly difference of the average BW among groupC1, groupT1 and groupC2(P<0.01). This suggested that the TCMOL1,TCMOL2 and vitamins formula had significantly preventive effect on the incidence of AS under the low ambient temperature during the period of experiment, and the effect of the TCMOL1 was better than that of TCMOL2 and vitamins formula. 2. During the experiment, the AHI, HI, LgI, LrI, KI of 42 day-old broilers of the normal group were lower than that of the low ambient temperature groups, these above-mentioned indexs of 42 day-old broilers of the prevention groups were lower than that of the model group, and there were significantly difference between groupT1 and groupC2 (P<0.05). Moreover, during the period of experiment, the SI of broilers of the normal group were higher than that of the low ambient temperature groups, and were significantly higher than that of the model group(P<0.01).The SI of broilers of the model group were lower than that of the prevention groups, and were significantly lower than that of the groupT1(P<0.01). These results indicated that the broiler model of AS was replicated successfully. Moreover, these results suggested that the TCMOL1 can relieve the internal organs damage induced by cold stress and improve the internal organs function. 3. The PCV, Hb, RBC, the serum α-HBDH and XOD of broilers in groupC2 were increased under the low ambient temperature during the period of experiment, and there were no significantly difference among groupT1, groupT2 and groupT3. These above-mentioned更多还原