| 饲粮不同锰水平对肉仔鸡生长腿病发生率和某些血浆生化指标与免疫参数的影响 |
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| 引用本文： | 罗绪刚,苏琪,黄俊纯,段玉琴.饲粮不同锰水平对肉仔鸡生长腿病发生率和某些血浆生化指标与免疫参数的影响[J].中国畜牧杂志,1991(1). |
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| 作者姓名： | 罗绪刚 苏琪 黄俊纯 段玉琴 |
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| 作者单位： | 中国农业科学院畜牧研究所
(罗绪刚，苏琪，黄俊纯)，中国农业科学院畜牧研究所(段玉琴) |
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| 摘 要： | 用1日龄Arbor Acres雏鸡180只(公母各半),分成6组,分别喂以含Mn18ppm的玉米—豆饼基础饲粮和含Mn50、90、130、280和2840ppm的添加Mn饲粮28天,研究饲粮不同Mn水平对肉仔鸡生长、腿病发生率、某些血浆生化指标与免疫参数的影响。随饲粮Mn水平的提高,鸡体增重在90ppm时增至最大(P>0.05),然后到2840ppm时降至最低(P<0.05),采食量有类似趋势(P<0.05或0.01),饲料效率无明显变化(P>0.05);腿病发生率由基础饲组的56.7％逐渐降低到130ppm以上的10％左右;血浆葡萄糖浓度和碱性磷酸酶(AKP)活性分别在280ppm和2840ppm时增至最大(P<0.01),血浆总胆固醇、总蛋白、白蛋白、球蛋白浓度和血浆谷胱甘肽过氧化物酶(GSH-px)活性未受到显著影响(P>0.05);胸腺、法氏囊和脾脏重量及血清H.I.抗体滴度无明显变化(P>0.05);肝、胰和跖骨灰Mn浓度线性上升(P<0.05或0.01),其中以跖骨灰Mn反应最敏感。
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Effects of Various Levels of Dietary Manganese on Growth,Incidence of Leg Abnormality,Some Plasma Biochemical Criteria and Immunological Parameters of Broiler Chicks |
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| Abstract: | 180 day-old Arbor Acres (AA) chicks (1/2, 1/2) fed a basal corn-soybean meal diet supplemented with reagent grade MnSO4.H2O for 28 days. The basal diet contained 18ppm Mn and the experimental diets contained 50, 90, 130, 280 and 2840 ppm Mn. As dietary Mn levels increased, bodyweight gain of chicks was up to the maximum at 90ppm Mn (P>0.05) and then down to the minimum at 2840ppm (P< 0.05) with a similar trend for feed intake (P<0.05 or 0.01) and feed conversion (F/G) was not changed (P>0.05); Incidence of leg abnormality declined from 56.7% of the chicks fed the basal Mn deficient diet to about 10% of the chicks fed the diets containing 130ppm or higher; Glucose concentration and alkoli phosphatase (AKP) activity in plasma were up to their highest values at 280ppm and 2840ppm Mn respectively (P<0.01) and total cholesterol, total protein, albumin and globul in concentrations and GSH-px activity in plasma were not affected (P>0.05); No differences (P>0.05) were found of weights of thymus, fabricius bursa and spleen and H. 1. antibody titer in serum among various Mn levels; And Mn concentrations of liver, pancreas and bone ash were linearly increased (P<0.05 or 0.01)with the most sensitive response for bone ash Mn. |
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