日本对虾内陆养殖的实验室模拟研究

我们将日本对虾进行实验室桶养作模拟内陆养殖试验。发现日本对虾可以顺利地养殖到体长５－７厘变,然后短人存活率急剧降低,这一现象与我们海边虾塘养殖所得到的结果极为一致,我们称之为“５－７”现象。     

小叶锦鸡儿根瘤固氮活性的动态变化

对多年生小叶锦鸡儿不同生育期根瘤固氮能力、不同树龄小叶锦鸡儿根瘤固氮能力进行调查,结果表明:开花期固氮酶活性最高,此时土壤含氮量和植株含氮量最高;新瘤多发生于果后营养期,植株生物量的峰值出现在结实期;二年生和五年生植株的根瘤固氮能力强于三年、四年生植株,随生长年限的延长,植株生物量逐渐增大,含氮量呈小幅度下降趋势。     

“伊维菌素”注射液对肉牛皮蝇蛆的防治效果观察

牛皮蝇蛆是危害我国畜牧业发展最为严重的寄生虫病之一。本试验将已感染牛皮蝇蛆的171头肉牛为对象,随机分成5组。将伊维菌素注射液分别以高、中、低三种剂量对不同组别的肉牛进行颈部皮下注射治疗和观察,同时注射等体积生理盐水作为阴性对照组,饲喂虫克星粉剂作为阳性对照组进行对比试验。结果显示,0.2 mg/kg体重(中剂量组)为伊维菌素皮下注射的最佳剂量,对皮蝇蛆的治愈率达97.82%(45/46),而以0.2 mg/kg体重口服虫克星粉剂的对照组治愈率达60.71%(17/28),且统计分析差异显著(P0.05)。试验表明,中等剂量的伊维菌素注射液对牛皮蝇蛆的防治安全可靠且效果显著,为临床治疗肉牛皮蝇蛆提供理论参考。     

QFM合剂麻醉剂量对犬肝、肾功能的影响

QFM合剂是一种新型的犬用复合麻醉制剂。本试验旨在研究其对犬肝、肾功能的影响。试验用7条犬肌肉注射QFM合剂0．15～0．2mL(每千克体质量)，观察比较了注药前、后犬血清GOT、GPT、AKP活性和尿素氮、肌酐含量的变化。结果证明：注药前、后犬血清GOT、GPT、AKP活性和尿素氮、肌酐含量的变化差异不显著，在正常生理范围内。说明QFM合剂应用于犬的麻醉，时犬的肝、肾功能无明显不良影响，进一步证明了QFM合剂应用于犬的临床安全性。     

Bactrian camel (Camelus bactrianus) integrins αvβ3 and αvβ6 as FMDV receptors: Molecular cloning, sequence analysis and comparison with other species

Integrins are heterodimeric adhesion receptors that participate in a variety of cell–cell and cell–extracellular matrix protein interactions. Many integrins recognize RGD sequences displayed on extracellular matrix proteins and the exposed loops of viral capsid proteins. Four members of the αv integrin family of cellular receptors, αvβ3, αvβ6, αvβ1 and αvβ8, have been identified as receptors for foot-and-mouth disease virus (FMDV) in vitro, and integrins are believed to be the receptors used to target epithelial cells in the infected animals. To analyse the roles of the αv integrins from a susceptible species as viral receptors, we have cloned Bactrian camel αv, β3 and β6 integrin cDNAs and compared them to those of other species. The coding sequences for Bactrian camel integrin αv, β3 and β6 were found to be 3165, 2289 and 2367 nucleotides in length, encoding 1054, 762 and 788 amino acids, respectively. The Bactrian camel αv, β3 and β6 subunits share many structural features with homologues of other species, including the ligand binding domain and cysteine-rich region. Phylogenetic trees and similarity analyses showed the close relationships of integrin genes from Bactrian camels, pigs and cattle, which are each susceptible to FMDV infection, that were distinct from the orders Rodentia, Primates, Perissodactyla, Carnivora, Galliformes and Xenopus. We postulate that host tropism of FMDV may in part be related to the divergence in integrin subunits among different species.     

犬河苯二酚中毒2例

间苯二酚,商品名雷锁辛或雷锁酚.据报道该品3%～25%的水溶液或油膏涂在皮肤上可引起皮肤损害,并可被吸收中毒引起死亡.长期低浓度接触,可引起呼吸道刺激症状及皮肤损害.     

宠物源人兽共患病防控战略研究

近年来,宠物越来越受到人们的关注,同时带来的人兽共患病问题也接踵而至。本文分析了宠物源人兽共患病的病原情况和防控现状,阐明了我国宠物源人兽共患病防控仍然面临巨大挑战,提出了加速提高宠物医疗技术水平、加快宠物药品的研制与注册等建议,对于防控宠物源人兽共患病有一定的借鉴意义。     

氨基酸分析仪测定鱼粉中的氨基酸

利用氧化水解法测定鱼粉中17种氨基酸含量,采用Amino Acid Analyzer全自动氨基酸分析仪,水合茚三酮做柱后衍生,结果表明:该方法操作简便,适用于鱼粉中氨基酸的测定并取得较好的结果。     

Surgical outcome and ocular complications of evisceration and intraocular prosthesis implantation in dogs with end stage glaucoma: a review of 20 cases

Surgical outcome and complications following evisceration and implantation of intraocular silicone prosthesis (ISP) in 20 canine eyes with end-stage glaucoma were analyzed, including clinical signs, complications, cosmetic appearance, and owners' responses. The mean postoperative follow-up time was 312 days. Major short-term surgical complications were central corneal ulceration (6/20) and infections (3/20), while long-term complication was keratoconjunctivitis sicca (KCS) (2/20). All patient owners (100%) showed satisfied with the surgical outcome and postoperative cosmetic effect including 85% of the owners gave an excellent or good rating of satisfaction. No more medication needed for long term control except the KCS cases. With careful case selection and post-operative care, evisceration with ISP implantation proves a good and safe surgical procedure with minimal complications for end stage glaucoma.     

浅谈动物尸体处理现状与危害及对策

随意抛弃动物尸体,具有潜在的疾病传播危险,一旦将携带人畜共患病病原体的动物尸体抛弃在垃圾桶、河道甚至居民区,将会严重危害人类的健康,即便是正常死亡的动物尸体,也会对环境造成污染。现就动物尸体处理现状、危害及对策浅谈如下,以供同行商榷。