昭苏牧区放牧绵羊血清6种常量元素分析     

邵长一  王展鹏  孙国君  张文举  陈岗  孙浩 《家畜生态学报》2019,40(12)

为了解昭苏牧区放牧绵羊常量元素的盈缺情况,分别于春季、夏季、秋季和冬季选取成年母羊和育成母羊各10只,测定其血清及其四季所采食牧草中钙、磷、钾、钠、镁和硫含量。结果表明:该牧区不同季节牧草中所含钙、磷、钾、钠、镁和硫含量范围分别为0.64%～1.17%、0.12%～0.23%、0.54%～1.81%、0.04%～0.05%、0.17%～0.28%和0.23%～0.28%;牧草中钙、钾、镁和硫均可满足放牧绵羊的营养需要;磷存在季节性缺乏,冬季不能满足需要;钠全年缺乏;不同季节放牧成年母羊血清中钙、磷、钾、钠和镁含量范围为117.42～144.26 mg/L、81.07～123.17 mg/L、184.33～215.05 mg/L、3385.60～3590.00 mg/L和21.13～28.88 mg/L;放牧育成母羊血清中钙、磷、钾、钠和镁含量范围为61.13～68.86 mg/L、63.14～128.58 mg/L、204.00～277.33 mg/L、3390.50～3587.50 mg/L和20.58～28.19 mg/L,均处于正常范围。因此,昭苏地区四季放牧绵羊冬季应注意磷的补充,全年需补充食盐。  相似文献   

生长阉牛可吸收氨基酸营养研究进展     

晏向华  王加启  瞿明仁  张文举 《中国畜牧兽医》2001,28(2):2-5

综述了近年来有关肉用牛的可吸收氨基酸与能量水平关系及其在十二指肠营养调控方面的内容  相似文献   

采用环磷酸腺甙（cAMP）低温保存家兔精液的品质与受胎率     

陆岳荣 EI－G.  MN 《中国养兔杂志》1994,(3):29-32

用假阴道采集１０只新西兰白兔的精液，经测定精子活力强，密度大，呈前进运动。然后用三羟甲基氨基甲烷缓冲液作抗冻保护，使精液在２小时内冷却至５℃，放置２天。低温保存时加入５毫克分子浓度的咖啡碱或茶碱，并在３７℃条件下持温２小时。在受胎率试验中，选用４３只新西兰白兔，每次用新鲜精液，低温冷藏精液或添加５毫克分子浓度茶碱于稀释低温保存精液输精０．５毫升（含精子１５ｘ１０~６）。结果表明，含５毫克分子浓度咖啡碱或茶碱稀释的低温保存精液，游动精子的比例增加（Ｐ＜０．０１），但持温保存时游动精子的比例降低（Ｐ＜０．０１），且精子顶体异常率增加（Ｐ＜０．０１），乳酸脱氢酶释放进入细胞间质。采用含５毫克分子浓度茶碱低温保存精液的配种效果与鲜精相同；但鲜精与冷藏精液相比，则差异显著（Ｐ＜０．０５）。采用鲜精，冷藏精液及含茶碱低温保存精液输精，母兔的产仔率分别为７０．６％，４１．７％和６４．３％．  相似文献   

稀土元素对产蛋鸡日粮中粗蛋白钙磷代谢率的影响   总被引：1，自引：0，他引：1  

张文举  祁风华 《新疆畜牧业》1993,(6):33-34

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氢氧化钙与食盐结合处理稻草效果更好     

张文举  晏向华  龚月生  王加启 《养殖技术顾问》2003,(5):17

我们于2000年6～10月在中国农业科学院畜牧所进行了试验,分别用0%(A)、4%氢氧化钙(B)、4%氢氧化钙加1%食盐(C)、4%氢氧化钙加2%食盐(D)处理稻草,水分调至45%,填紧压实,密封保存于贮罐内1个月,然后用瘤胃尼龙袋法测定稻草有效降解率,分析相关营养指标。试验结果表明,复合处理效果优于单独用氢氧化钙处理稻草的效果,有效降解率随着食盐添加量的提高而提高,表明食盐对提高稻草营养价值有重要作用。4%的氢氧化钙是处理秸秆比较理想的浓度,所以本试验未设碱化处理梯度。提高干物质有效降解率36.80%,提高中性洗涤纤维降解率7.54%。氢氧化钙与食…  相似文献   

Ocular absorption and toxicity of methotrexate in the dog          下载免费PDF全文

Bussanich MN  Rootman J  Kumi C  Gudauskas G 《The Canadian veterinary journal. La revue veterinaire canadienne》1985,26(9):263-266

The ocular absorption, elimination and toxicity of 12.5 mg of methotrexate in 0.5 cc administered subconjunctivally was studied in the dog. The purpose of this study was to establish ocular pharmacokinetics for treatment of intraocular tumours in dogs. Drug levels were measured in ocular compartments, and serum at 1,2,4,6,8 and 12 hours respectively. Tumoricidal concentrations of the drug were attained in the anterior chambers of the injected eyes up to and including six hours postinjection. Consistent signs of toxicity were anorexia, vomiting, weight loss and leukopenia. Local ocular toxicity following subconjunctival injection was minimal conjunctival hyperemia lasting up to 48 hours.  相似文献   

Cytochemical staining characteristics of lymph nodes from normal and lymphoma-affected dogs     

Raskin RE  Nipper MN 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》1992,21(2):62-67

Frozen sections and imprint smears were used to evaluate the presence and pattern of cytochemical staining reactions in the B- and T-cell regions of lymph nodes from normal dogs and dogs with lymphoma. Staining procedures evaluated included peroxidase (PER), Sudan black B (SBB), naphthol AS-D chloroacetate esterase (CAE), alpha-naphthyl butyrate esterase (NBE), acid phosphatase (ACP), and leukocyte alkaline phosphatase (LAP). In normal lymph nodes, macrophages and some lymphocytes within the interfollicular (T-cell) region and medulla stained positive with ACP and NBE. Smaller numbers of macrophages also occurred sporadically within the germinal follicles. Cells positive for PER, SBB, and CAE were scattered infrequently throughout all regions of the normal lymph node, consistent with granulocytes and mast cells. The LAP stained cells were predominantly and prominently located within the mantle zone of secondary follicles and to a much lesser extent within the germinal centers, compatible with B-cell lymphocytes derived from follicular center cells. Of the 12 dogs with lymphoma, 7 cases (4 immunoblastic, 2 large noncleaved, 1 small noncleaved) stained diffusely positive with LAP, 4 cases (all lymphoblastic) had numerous focally positive lymphocytes using ACP and NBE, and 1 case (immunoblastic) did not stain positive with any of the cytochemical reactions. Cytochemical staining of canine lymph nodes with NBE, ACP, and LAP proved useful in distinguishing between B- or T-cell regions and detecting different cell types of canine lymphoma.  相似文献   

Diagnosis of monensin intoxication in poultry          下载免费PDF全文

Lindsey GD  Novilla MN  Stobbs LA 《The Canadian veterinary journal. La revue veterinaire canadienne》1990,31(5):341

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丁酸梭菌的生物学功能及其在动物生产中的应用     

梁静  聂存喜  张文举  陈程 《动物营养学报》2018,(5)

丁酸梭菌作为一种新型微生态制剂,具有耐热、耐酸、耐受多种抗生素等特点。在畜禽生产中添加丁酸梭菌制剂,不仅可促进动物生长,调节肠道菌群微生态平衡,对宿主产生多种益生作用,还可减少饲料中抗生素产品的使用,进而减少药物在肉品中的残留。使用丁酸梭菌可以降低细菌的耐药性,从而保障动物机体健康。本文主要就丁酸梭菌的生物学功能及其在动物生产中的应用进行综述,旨在为丁酸梭菌在动物健康养殖与安全生产中的应用提供参考。  相似文献   

新疆奶业发展现状与展望     

何开兵  ;张文举  ;卜登攀  ;吕中旺 《中国奶牛》2014,(13):46-50

本文对新疆奶业发展现状进行了调研,通过对自治区各地州、市和兵团各师奶业状况的抽样调查,探讨了新疆奶业存在的问题,提出了新疆奶业发展的建议和措施。  相似文献