乳化异氟醚及异氟醚对犬血清中C反应蛋白及总补体含量的影响

为了研究乳化异氟醚及异氟醚对犬血清中C反应蛋白(CRP)及总补体(CH50)含量的影响,将40只犬随机均分为乳化异氟醚复合制剂麻醉组(RYM组)、异氟醚麻醉组(YM组)、乳化异氟醚复合制剂麻醉+手术(RYMS)及异氟醚麻醉+手术(YMS)四组。RYM、YM两组只进行麻醉不进行手术,RYMS、YMS两组在实施麻醉的同时分别进行肠管吻合术,在麻醉前(T0)、手术完成即刻(T1,而RYM和YM组在麻醉后35~40 min进行采样)、术后24 h(T2)、术后48 h(T3)、术后72 h(T4)等时间点,采血,测定血清中CRP及CH50含量。结果表明,乳化异氟醚复合麻醉及麻醉下手术对犬血清中CRP、CH50含量的影响,与异氟醚相似,两者无明显的差异。     

三种麻痹诱导方法对杂种犬吸入麻醉的影响

为评价3种麻醉诱导方法在吸入麻醉中对试验犬麻醉效果的影响.本试验将15只杂种犬,分为A、B、C3组,每组5只.A组为盐酸氯胺酮、速眠新Ⅱ组,B组为戊巴比妥钠组,C组为盐酸氯胺酮、地西泮注射液组,各组在诱导麻醉后行气管插管,应用异氟烷进行吸入麻醉,在不同时间点对试验犬的心率(HR)、血压(BP)、血氧饱和度(SPO2)、...     

异氟醚麻醉下高气腹压对犬氧化应激的影响

研究异氟醚麻醉条件下高气腹压对犬氧化应激指标的影响,为腹腔镜技术在兽医临床推广提供一定的理论依据。方法:将12只健康本地犬分为对照组和气腹组(15 mm Hg),在异氟醚麻醉下建立气腹,检测各时间点的犬血清中总抗氧化能力(T-AOC)、超氧化物歧化酶(SOD)、过氧化氢酶(CAT)、还原型谷脘甘肽酶(GSH)和丙二醛(MDA)的水平。结果:相比于对照组,术后2 h和6 h气腹组的MDA水平显著升高(P0.05),SOD、CAT、GSH和T-AOC的水平显著降低(P0.05),术后24 h后均恢复正常。结论:在异氟醚麻醉条件下,高气腹压对犬氧化应激水平虽有影响,但可通过机体自我调节能力恢复。     

七氟醚氟烷异氟醚对犬心脏功能影响的临床比较

为评价七氟醚对心脏功能的影响。并与氟烷和异氟醚作比较，对动物医院就诊、心肺功能正常、拟作手术治疗的8例患犬进行麻醉试验，所有犬均以l-美散痛和安定和为麻醉前给药，分别以1.5%七氟醚、1.0%七氟醚与66.7%笑气、1.0%氟烷、1.5%异氟醚维持手术麻醉，并作人工呼吸，各组均未观察到心律异常，手术麻醉期间，七氟醚组犬心率降幅（4.73%）低于异氟醚组（9.74%)或氟烷组（10.23%)。七氟醚组、氟烷组和异氟醚组的收缩压/舒张压轻度升高（七氟醚3.38%/11.93%氟烷6.09%/9.09%，异氟醚4.82%/6.25%)。而七氟醚与笑气组的收缩压/舒张压则降低（6.84%/5.73%)。证实七氟醚应为临床首选的吸入麻醉剂。     

犬穿透性角膜移植术不同麻醉药物效果的临床研究

目的:探讨非吸入麻醉药物(速眠新与氯胺酮)与吸入麻醉药物(异氟烷)对犬穿透性角膜移植手术的麻醉效果。方法:选择30只杂交犬,随机分为非吸入麻醉组(Ⅰ组,15只)与吸入麻醉组(Ⅱ组,15只),分别通过速眠新与氯胺酮复合麻醉和异氟烷吸入麻醉,进行穿透性角膜移植手术,同时测定麻醉前后眼压,观察并发症、麻醉效果,记录手术时间。结果:非吸入麻醉组:麻醉后眼压明显高于麻醉前(P<0.01);麻醉效果满意的5例,比较满意的9例,前房出血10例,虹膜前粘连8例,晶状体脱位1例;吸入麻醉组:麻醉后眼压明显低于麻醉前(P<0.01);麻醉效果满意的13例,比较满意的仅2例,虹膜前粘连2例。吸入麻醉组手术时间明显低于非吸入麻醉组(P<0.01)。结论:采用异氟烷吸入麻醉对犬进行穿透性角膜移植术比非吸入麻醉效果确实,并发症少,手术时间缩短。     

三种麻醉诱导方法对杂种犬吸入麻醉的影响

为评价3种麻醉诱导方法在吸入麻醉中对试验犬麻醉效果的影响。本试验将15只杂种犬,分为A、B、C 3组,每组5只。A组为盐酸氯胺酮、速眠新Ⅱ组,B组为戊巴比妥钠组,C组为盐酸氯胺酮、地西泮注射液组,各组在诱导麻醉后行气管插管,应用异氟烷进行吸入麻醉,在不同时间点对试验犬的心率(HR)、血压(BP)、血氧饱和度(SPO2)、体温(TPR)、心电(ECG)进行监测,监测各时间点参数应用SPSS13.0软件进行统计并与A组数据相比较。试验结果表明,B、C两组与A组在麻醉后的心率、诱导5 min后的血氧、试验犬诱导期差异显著P<0.05,A组麻醉诱导剂对试验犬存在心率抑制作用,部分试验犬出现心电延迟;3组试验犬诱导期为B相似文献   

静脉注射利多卡因及利多卡因复合芬太尼对异氟醚麻醉犬的血气影响

本试验旨在研究静脉注射利多卡因及利多卡因复合芬太尼对异氟醚麻醉犬血气的影响,从而确定麻醉深度的变化情况,进而评价利多卡因及利多卡因复合芬太尼对异氟醚麻醉犬的安全性及可行性。采用健康杂交犬6只,分为利多卡因组和利多卡因复合芬太尼组,由股动脉穿刺抽取动脉血0.5mL进行血气分析。结果显示,利多卡因复合芬太尼组pH值在10min后与0min相比具有统计学意义。综合血气指标及临床表现得出静脉注射利多卡因及复合芬太尼对异氟醚麻醉犬麻醉及镇痛效果良好,且安全可靠。     

七氟醚、氟烷、异氟醚对犬肝肾功能影响的临床比较

为评价七氟醚对肝肾功能的影响，并与氟烷和异氟醚作比较，对动物医院就诊的心肺功能正常，拟作手术治疗的61头患犬进行麻醉试验，所有犬均以l-美散痛和安定作为麻醉前给药。分别以1．5％七氟醚、1．0％氟烷、1．5％异氟醚维持手术麻醉，所有3组中无一组可见肝肾毒性副作用。至七氟醚麻醉后48h，GLDH，AST，ALT，γ-GT，总胆红素，AP，尿素氮和肌酐显示正常。     

不同麻醉方式对犬角膜移植眼压及术中并发症的影响

为了探讨不同麻醉方式对犬穿透性角膜移植手术眼压及并发症的影响.方法:本试验以扬州本地犬为试验动物,分别采用异氟烷吸入麻醉与速眠新配合氯胺酮肌肉注射麻醉进行穿透性角膜移植手术,测定麻醉前后眼压,并观察术中并发症.     

不同麻醉方法在犬剖腹产手术的临床效果

为探究不同麻醉方法对犬剖腹产手术的应激效果及仔犬的生活容态。本试验采用846合剂全身麻醉、普鲁卡因硬膜外腔麻醉及846合剂与普鲁卡因联合麻醉对怀孕期满的犬进行剖腹产手术,在剖腹产手术的麻醉前(T1)、切开腹壁(T2)、手术30min(T3)、手术完(T4)、术后24h(T5)、术后48h(T6)进行静脉采血,检测血浆皮质酮和血糖含量,比较术后幼犬平均日增重及生活容态。结果表明:846麻醉组和硬膜外麻醉组血浆皮质醇质量浓度在T2⁶这5个时期显著高于自然分娩组和联合麻醉组(P<0.05),联合麻醉组仅在T3时血浆皮质醇质量浓度显著高于自然分娩组(P<0.05);846麻醉组和硬膜外麻醉组血糖质量浓度在T26这5个时期显著高于自然分娩组和联合麻醉组(P<0.05),联合麻醉组仅在T3时血浆皮质醇质量浓度显著高于自然分娩组(P<0.05);846麻醉组和硬膜外麻醉组血糖质量浓度在T2⁶时期均显著高于自然分娩组及联合麻醉组(P<0.05),联合麻醉组仅在T36时期均显著高于自然分娩组及联合麻醉组(P<0.05),联合麻醉组仅在T3⁴时期显著高于自然分娩组(P<0.05);联合麻醉组中的幼犬增重、生活容态与自然分娩时幼犬最接近,846麻醉组效果较差,硬膜外麻醉组效果最差。本研究证明846合剂与普鲁卡因硬膜外腔联合麻醉方法能够更有效缓解犬剖腹产手术的应激反应。     

The effects of stress on gastric ulceration, T3, T4, reverse T3 and cortisol in neonatal foals.

Sixteen neonatal foals stressed by disease underwent endoscopic examination of their stomachs and blood was assayed for triiodothyronine (T3), reverse T3 (rT3), thyroxine (T4) and cortisol, to determine the effects of severe physiological stress and the occurrence of gastric ulcers. compared with eight age-matched controls, six foals had abnormal cortisol, seven had abnormal T3 and 12 had abnormal T4. Eleven of 13 foals had rT3 outside the 95 per cent confidence interval for clinically normal foals of comparable ages. Gastric lesions were seen more frequently in stressed foals, and gastric glandular mucosal lesions were noted in 40 per cent of the stressed foals. Previous studies report low (3 per cent) occurrence of gastric mucosal lesions. The frequency of squamous mucosal lesions was not different from that reported previously, indicating that stress has little effect on the development of lesions at this site.     

Qualitative Comparison of 0.27T, 1.5T,and 3T Magnetic Resonance Images of the Normal Equine Foot

Magnetic resonance (MR) imaging has become an important diagnostic tool in the investigation of foot pain in horses. The aim of this study was to qualitatively compare ex-vivo MR images of the same equine feet obtained at three magnetic field strengths: 0.27, 1.5, and 3 tesla (T). Ten cadaver feet were used. All feet were imaged with two high-field systems (3T, 1.5T) and with a low-field (LF) system at 0.27 T designed for standing horses. Images were acquired using similar pulse sequences in all 3 MR units. MR images were subjectively evaluated by three independent experienced image analysts for image quality and clarity of visualization of individual anatomical structures using a four-point grading scale. The images from all of the examinations were considered to be of diagnostic value except for the hoof capsule where substantial artifacts were present in LF images with distortion and loss of signal at the dorsal/distal aspect of the hoof capsule in LF images. Anatomical structure scoring values of images obtained at 3T and 1.5T were significantly greater than scores of images obtained at 0.27T. Scores for images obtained at 3T were significantly higher than those for images obtained at 1.5T. Mean score differences between 1.5T and 3T were higher for cartilage of the distal interphalangeal joint and for the ungular cartilages.     

妊娠后期限饲对母羊分娩后血中GH、IGF-I、T3、T4和INS浓度的影响

选择经同期发情且同期受孕,妊娠90 d的健康蒙古绵羊100只,分为代谢能(ME)0.175 MJ/(kgw0.75.d)(RG1)0、.33 MJ/(kgw0.75.d)(RG2)以及自由采食对照组(CG)3个营养水平处理组,研究妊娠后期不同营养水平限制饲养对母羊分娩后生理补偿期内血中GH、IGF-I、T3、T4和INS浓度的影响。结果表明:母羊从分娩后10 d开始,各限制组RG1和RG2组GH浓度均处于较高水平,而IGF-I、INS、T3、T4浓度仍处于较低水平,与对照组相比差异不显著;分娩30 d后,各组各指标变化复杂,RG1和RG2组GH浓度均有所下降,而IGF-I、INS、T3、T4浓度缓慢回升,到150 d后,各限制组GHI、GF-II、NS、T3、T4浓度都与对照组水平持平,而且在整个生理补偿期内,RG2组表现更突出。     

Measurement of thyroid hormones (thyroxine, T4; triiodothyronine, T3) in captive nondomestic felids.

The aim of this research was to obtain basic values for the evaluation of thyroid function in nondomestic felids. Serum thyroid hormone concentrations (thyroxine, T4; triiodothyronine, T3) were measured by radioimmunoassay in 145 cats, representing nine species of captive nondomestic felids: jaguar (Panthera onca), n = 49; puma (Puma concolor), n = 10; ocelot (Leopardus pardalis), n = 22; oncilla (Leopardus tigrinus), n = 12; geoffroy (Oncifelis geoffroyi), n = 4; jaguarundi (Herpailurus yaguarondi), n = 8; margay (Leopardus wiedii), n = 7; lion (Panthera leo), n = 26; and tiger (Panthera tigris), n = 7. For each species, mean +/- SEM of T3 and T4, respectively, were as follows: jaguar, 0.56 +/- 0.03 and 9.7 +/- 0.8 ng/ml; puma, 0.67 +/- 0.04 and 11.2 +/- 1.2 ng/ml; ocelot, 0.48 +/- 0.03 and 13.8 +/- 1.5 ng/ml; oncilla, 0.43 +/- 0.03 and 10.0 +/- 1.6 ng/ml; geoffroy, 0.44 +/- 0.04 and 8.0 +/- 0.16 ng/ml; jaguarundi, 0.7 +/- 0.03 and 5.0 +/- 1.0 ng/ml; margay, 0.48 +/- 0.04 and 12.2 +/- 2.3 ng/ml; lion, 0.43 +/- 0.02 and 5.7 +/- 2.6 ng/ml; and tiger, 0.66 +/- 0.03 and 12.6 +/- 0.9 ng/ml. Within species, T3 and T4 concentrations did not differ (P > 0.05) between males and females.     

Effects of storage times and temperatures on T3, T4, LH, prolactin, insulin, cortisol and progesterone concentrations in blood samples from cows

Little is known about stability of hormones in blood samples stored under various conditions. This study was conducted to examine stability of triiodothyronine (T3), thyroxine (T4), luteinizing hormone (LH), prolactin, insulin, cortisol and progesterone in blood and serum samples. Experiment 1 was designed to determine if concentrations of these hormones were affected by exposure to cellular elements of anticoagulated and coagulated blood when stored at 4 C and room temperature (22 to 26 C). Jugular venous blood was collected from six diestrous Holstein cows into evacuated bottles containing sodium ethylenediaminetetraacetic acid (EDTA), heparin or no anticoagulant. Subsamples of EDTA-treated and heparinized blood were stored .25, .5, 1, 2, 4, 8, 24 and 72 h at 4 C or room temperature. Subsamples of blood without anticoagulant were stored in polypropylene tubes (clot tubes) or serum separator tubes for 1, 2, 4, 8, 24 ad 72 h. Mean concentrations of T3, T4, LH, prolactin and cortisol did not change in plasma or serum from either of the four types of samples stored at 4 C or room temperature for 72 h. The mean insulin concentration decreased 18% by 72 h in serum from serum separator tubes stored at room temperature. At 4 C, mean progesterone concentrations decreased 55% by 24 h and 73% by 72 h in plasma from EDTA-treated blood; 41% by 72 h in serum from clot tubes, and 26% by 24 h and 36% by 72 h in serum from serum separator tubes.(ABSTRACT TRUNCATED AT 250 WORDS)     

Influence of exogenous T4 on body weight, feed consumption, T4 levels, and myocardial glycogen in furazolidone-fed turkey poults.

Ten turkey poults each were placed in one of four groups: control, thyroxine (T4), furazolidone (FZ), and FZ + T4. Thyroxine (T4), at a concentration of 1 ppm, was included in the ration of poults fed T4 and FZ + T4, and furazolidone (FZ), at a concentration of 700 ppm, was included in the ration of poults fed FZ and FZ + T4 from 2 to 5 weeks of age. Levels of plasma T4 decreased significantly (P less than or equal to 0.05) between 2 and 5 weeks in control and FZ poults. At 5 weeks, plasma T4 levels were significantly (P less than or equal to 0.05) lower in FZ poults than in control poults and significantly (P less than or equal to 0.05) lower in the FZ + T4 poults than in the T4 poults. Exogenous administration of T4 had no effect on development of the round heart syndrome or on body weight, but significantly increased feed consumption in FZ-fed poults during weeks 4 (P less than or equal to 0.05) and 5 (P less than or equal to 0.01). Inclusion of T4 in the ration increased plasma levels of the hormone 12x in both T4 and FZ + T4 poults and significantly (P less than or equal to 0.05) increased myocardial glycogen content in T4 poults but not in FZ + T4 poults.     

Interference in the establishment of tsetse-transmitted Trypanosoma congolense, T. brucei or T. vivax superinfections in goats already infected with T. congolense or T. vivax

An interference phenomenon that delays superinfection with a trypanosome species different from that used for the initial infection has been found to occur in goats. Following tsetse transmission of Trypanosoma brucei to goats already infected with T. congolense, there was a delay in chancre development, as well as in the appearance of T. brucei and anti-T. brucei antibodies in the blood when compared to previously uninfected goats. However, there was no delay in the establishment of a tsetse-transmitted superinfection with T. vivax in goats already infected with either T. congolense or in animals already infected with a different serodeme of T. vivax.     

围产期患高发代谢病奶牛T_4、T_3、TSH、I含量动态变化的研究

试验以处于围产期的68头奶牛(以健康经产牛为对照组,患酮病、脂肪肝、胎衣不下牛为试验组)为研究对象,在奶牛产前第15,8,1天和产后第1,8,15,22天分别采集颈静脉血检测血清中甲状腺激素[四碘甲腺原氨酸(T4)和三碘甲腺原氨酸(T3)]、促甲状腺激素(TSH)、碘(I)的含量。结果表明:健康的经产牛围产期血清中T4、T3、TSH、I均呈现波浪式动态变化,最高值分别出现在产前第1天、产后第22天、产后第1天、产前第15天;TSH最低值出现在产前第15天,其他检测指标最低值出现在产后第1天。患酮病的奶牛和患脂肪肝的奶牛围产期处于缺碘状态,其产后甲状腺机能出现减退;患脂肪肝期间同时伴发甲状腺功能减退症;患胎衣不下的奶牛围产期碘含量低于正常值,其产犊前后伴发亚临床甲状腺功能减退症。数据统计结果显示:奶牛血清中T4与TSH、T3、I的相关系数分别为-0.749,0.535,0.691;T3与TSH、I的相关系数分别为-0.502,0.457。     

中药添加剂对猪生产性能及血清GH、T3、T4的影响研究

随着现代养殖业的发展,饲料添加剂被广泛应用于畜禽生产,但是长期使用会造成畜产品有毒有害物质的残留,危害人类健康。而中药添加剂以其安全无害、毒副作用小等优点,日益受到人们的青睐。此次试验将中药饲料添加剂以不同的剂量,在相同基础日粮水平下进行饲喂试验,测定其对猪生长速度和血清GH、T3、T4的影响,为中草药添加剂对猪的促生长、改善肉的品质提供充分的理论依据。1材料与方法1.1中药添加剂中药添加剂由黄芪、党参、麦饭石、山楂、神曲、麦芽、何首乌、石膏、元明粉、女贞子等中草药组成方剂。各味药均购自河北省安国市药材市场。…