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1.
首次应用ＸＸＧ－Ａ型心血管功能测试仪对２９头健康成年黄牛和２８头热证黄牛部分血液动力学指标进行了无创检测和分析。与正常黄牛相比，热证组ＣＯ（Ｐ＜０．００１），ＣＩ（Ｐ＜０．００１），ＰＲ（Ｐ＜０．００１），ＶＰＥ（Ｐ＜０．０５），ＥＷＫ（Ｐ＜０．００１），ＨＯＩ（Ｐ＜０．０５），ＬＶＷＩ（Ｐ＜０．０５），ＰＰ（Ｐ＜０．００１），ＢＬＫ（Ｐ＜０．００１），ＡＣ，ＢＶ，ＭＨＲ（Ｐ＜０．００１）等指标均有不同程度的升高；而ＴＰＲ（Ｐ＞０．０５），ＭＲＴ（Ｐ＜０．００１），ＭＳＴ（Ｐ＜０．０１）都有明显的下降。结果表明，血液循环的高切变态和心血管机能兴奋是热证黄牛的重要特征。  相似文献   

2.
用无创伤性检测方法测定了４０例患不同部位肠阻塞病的血流动力流变学２５项参数，并与健康骡进行了比较，结果小结肠阻塞与胃状膨大部阻塞相比较，ＨＯＩ，ＭＳＰ，ＰＰ差异显著或极显著（Ｐ＜０．０５，Ｐ＜０．０１），与骨盆曲阻塞相比较，除ＨＯＩ显著降低外（Ｐ＜０．．０５），其它参数均无显著差异。胃状膨大部阻塞与骨盆曲阻塞相比较，２５项参数均无显著差异，健康骡与小结肠阻塞相比较，ＰＲ，ＣＩ，ＥＷＫ，ＢＬＫ，ＶＥ  相似文献   

3.
BFF,rbGH对牛卵泡卵母细胞体外受精后发育的影响   总被引：12，自引：3，他引：9  
利用屠宰黄牛卵巢，对２～５ｍｍ卵泡卵母细胞的体外成熟（ＩＶＭ）、体外受精（ＩＶＦ）、受精卵的体外培养（ＩＶＣ）进行了系列研究。结果表明，在成熟培养液中单独添加１０％Ｄ０ＥＣＳ（发情当天牛血清）获得了卵泡卵母细胞受精后较高的卵裂率（６４．７％）、桑椹胚发育率（３９．９％）和囊胚发育率（２４．８％），说明在成熟培养液中单独添加Ｄ０ＥＣＳ是可行的；在含１０％Ｄ０ＥＣＳ的成熟培养液中再添加１０％或２０％ＢＦＦ（牛卵泡液），均能提高受精卵的卵裂率以及桑椹胚和囊胚的发育率，以添加２０％ＢＦＦ效果较好，其囊胚发育率（３５．０％）显著高于对照组（２４．８％，Ｐ＜０．０５）；在卵泡卵母细胞成熟培养系统和受精卵共同培养系统中添加１０μｇ／Ｌ重组牛生长因子（ｒｂＧＨ），虽对体外受精卵的卵裂率无显著影响（Ｐ＞０．０５），但能显著提高卵裂胚的囊胚发育率（Ｐ＜０．０５）  相似文献   

4.
本文首次应用无创检测技术对１６匹患产前不吃症的驴及３５匹健康驴的血液动力液变学进行了研究，测量了２４项有关参数，并进行了ｔ检验，结果ＰＲ，ＣＯ，ＣＩ，ＥＳＫ，ＬＶＷＩ，ＢＬＫ，ＦＥＫ，ＶＥＲ及ＭＨＲ呈极显著性差异，ＨＯＩ，ＰＡＷＰ，ＭＲＴ，ＳＭＳＴ呈显著差异。  相似文献   

5.
本试验首次应用无创检测技术，对３５头健康驴及３９头因脾胃虚弱而致慢草或不食驴的血液动力流变学进行了探讨，建立了２５同有关参数，进行了统计分析，结果ＰＲ，ＥＷＫ，ＰＰ，ＢＬＫ，ＶＥＲ差异极显著，ＣＯ，ＣＩ，ＨＯＩ，ＬＶＷＩ，ＭＳＰ，ＡＣ差异显著，其余均不显著。  相似文献   

6.
用装有瘤胃瘘管和真胃瘘管的肥育阉牛,按完全拉丁方设计,连续定点消化道食糜采样,用ＫＢ－１型自控大型呼吸测热室测定能量平衡和氮平衡。结果表明,４种不同加工细度羊草,在维持饲养水平（１Ｍ）下的ＤＥ／ＧＥ,ＭＥ／ＤＥ,ＨＰ／ＭＥ,Ｋｍ,ＶＦＡ总量,乙酸：丙酸比例等的组间差异均不显著（Ｐ＞０．０５）,代谢能转化为维持净能效率（Ｋｍ）平均为６５．６９％（Ｃ．Ｖ＝０．８８％）;１．３Ｍ饲养水平的各种能量参数,４组间的差异亦均不显著（Ｐ＞０．０５）,代谢能转化为增重净能效率（Ｋｆ）平均３３．９２％（Ｃ．Ｖ＝１．８６％）。４种不同精料：羊草比例的日粮,在维持饲养水平下,ＣＨ４（ＫＪ）／ＤＥ（ＫＪ）＝０．０７３８＋０．０６１５（ＮＤＦ／ＯＭ）,ｒ＝０．８９２８,Ｋｍ＝６０．８６５１＋０．３３０４（丙酸ｍｏｌ／１００ｍｏｌＶＦＡ）,ｒ＝０．９９５５;在１．５Ｍ下,ＨＰ／ＭＥ＝１４．３８３８＋０．７８０５（乙酸ｍｏｌ／１００ｍｏｌＶＦＡ）,ｒ＝０．９９０３,Ｋｆ＝２２．９６９７＋０．６０２２（丙酸ｍｏｌ／１００ｍｏｌＶＦＡ）,ｒ＝０．９９８１,或Ｋｆ＝５７．２２６５－０．３８１７（ＮＤＦ／ＯＭ）,ｒ＝－０．９９８７。  相似文献   

7.
水牛慢性氟中毒X线诊断的研究   总被引：1，自引：0，他引：1  
本试验将７０头水牛分为Ⅰ组（３２头来源于氟值水平正常地区的水牛）、Ⅱ组（１４头来源于氟污染地区但未见有临诊症状的水牛）和Ⅲ组（２４头来源于污染地区且有临诊症状的水牛），并对所有水牛进行了骨矿物质含量和１７项生化指标的检测。骨矿物质含量在Ⅰ组与Ⅱ组间、Ⅰ组与Ⅱ＋Ⅲ组间差异极显著（Ｐ＜０．０１），Ⅰ组与Ⅲ组间差异显著（Ｐ＜０．０５），Ⅱ组与Ⅲ组间差异不显著（Ｐ＞０．０５），Ⅱ组Ⅲ组水牛骨Ｘ线变化可归为中度氟骨症。Ⅰ组与Ⅱ组间血清ＡＣＰ、Ｔ－Ｐ、ＡＬＢ、Ｃａ＋＋、Ｍｇ＋＋、Ｋ＋、ＨＰＯ４２－、Ｆ－和尿Ｆ－的差异极显著（Ｐ＜０．０１），血清ＨＹＰ的差异显著（Ｐ＜０．０５）；Ⅰ组与Ⅲ组间血清ＡＣＰ、Ｔ－Ｐ、ＡＬＢ、ＨＹＰ、Ｃａ＋＋、Ｍｇ＋＋、Ｋ＋、ＨＰＯ４２－、Ｆ－及尿Ｆ－差异极显著（Ｐ＜０．０１），血清ＬＤＨ差异显著（Ｐ＜０．０５）；Ⅰ组与Ⅱ＋Ⅲ组间血清ＡＣＰ、Ｔ－Ｐ、ＡＬＢ、ＨＹＰ、Ｃａ＋＋、Ｍｇ＋＋、Ｋ＋、ＨＰＯ４２－、Ｆ－及尿Ｆ－差异极显著（Ｐ＜０．０１）；Ⅱ组Ⅲ组间所有生化指标均无显著性差异（Ｐ＞０．０５）。Ｘ线检查和生化指标的测定具有一致性。  相似文献   

8.
采用３．０Ｍｒａｄ６０ＣＯ＿γ射线辐照和高压熏蒸（１２１℃，２０ｍｉｎ）ＳＰＦ鸡饲料，并对处理后饲料营养成分于试验后７天进行分析。辐照后７天粗蛋白、ＶＡ、ＶＤ３、ＶＥ、ＶＢ１、ＶＢ２、ＶＢ６、ＶＢ１２、Ｃｕ、Ｆｅ、Ｍｎ、Ｚｎ、Ｓｅ的损失率（％）依次为１．１、４．４、２．３、５．３、５．０、６．７、１０、０、０、０、０、０。辐照后ＶＢ６、ＶＢ１２含量与对照组比较，差异显著（Ｐ＜０．０５）。熏蒸后粗蛋白、ＶＡ、ＶＤ３、ＶＥ、ＶＢ１、ＶＢ２、ＶＢ６、ＶＢ１２、Ｃｕ、Ｆｅ、Ｍｎ、Ｚｎ、Ｓｅ的损失率（％）依次为９．７、１１．５、１５．３、２６．７、２０、１０、１３．３、２０、０、０、０、０、０。熏蒸后粗蛋白、ＶＡ、ＶＤ３、ＶＥ、ＶＢ１、ＶＢ２、ＶＢ６、ＶＢ１２含量与对照组比较，差异显著（Ｐ＜０．０５）。  相似文献   

9.
本实验研究了１ 日龄 Ｓ Ｐ Ｆ雏鸡人工感染网状皮组织增殖病病毒（ Ｒ Ｅ Ｖ）后，机体免疫器官白细胸介素２（ Ｉ Ｌ２）、干扰素（ Ｉ Ｆ Ｎ）和肿瘤坏死因子（ Ｔ Ｎ Ｆ）诱生活性的动态变化。结果表明， Ｓ Ｐ Ｆ 雏鸡感染 Ｒ Ｅ Ｖ 后：胸腺 Ｔ 淋巴细胞 Ｉ Ｌ２ 诱生活性于 １４ ～ ４９ 日 极 显 著 低 于 对 照 组（ Ｐ＜ ０．０１）；脾脏 Ｔ 淋巴细胞 Ｉ Ｌ２ 诱生活性于１４ 日较对照组明显降低（ Ｐ＜ ０．０５），感染后２１～４９ 日极显著降低（ Ｐ＜ ０．０１）；脾脏淋巴细胞 Ｉ Ｆ Ｎ 的诱生活性于感染后７～４９ 日极显著降低（ Ｐ＜ ０．０１）；脾脏细胞 Ｔ Ｎ Ｆ诱生活性极显著增高（ Ｐ＜ ０．０１）。揭示了 Ｒ Ｅ Ｖ 感染 Ｓ Ｐ Ｆ雏鸡机体免疫器官的分子免疫调节机能均明显降低或发生障碍。  相似文献   

10.
高碘日粮对蛋鸡生产性能,体内代谢和蛋品质的影响   总被引：3，自引：0，他引：3  
日粮加碘６５ｐｐｍ饲喂蛋鸡，破壳率减少（Ｐ＜０．０５），饲料消耗降低（Ｐ＜０．０１），采食量、产蛋量和蛋重无明显影响（Ｐ＜０．０５），肝中ＧＯＴ和ＧＰＴ酶活性显著上升（Ｐ＜０．０１），ＡＫＰ明显升高（Ｐ＜０．０５），血清中ＡＫＰ明显增加（Ｐ＜０．０５），ＳＯＤ提高显著（Ｐ＜０．０５），而肝中ＣＤＨ和ＣＫ，血清中ＬＤＨ，ＧＯＴ、ＧＰＴ和ＣＫ无显著差异（Ｐ＜０．０５），ＳＯＤ提高显著（Ｐ＜０．０５），  相似文献   

11.
试验选用96头平均体重14.82 kg左右的杜×长×大断奶仔猪,随机分成4组,每组3栏,每栏8头(公母各半)。对照组饲喂基础日粮,试验1、2、3组分别添加1%80目白术、0.2%白术多糖和1%微米白术。试验期30 d。结果表明:在生长性能方面,与对照组相比,1%微米白术添加组可显著提高日增重(P0.05)、降低饲料增重比和腹泻率,而且效果优于1%80目白术组和0.2%白术多糖组,在肠道形态和肠道微生态区系方面,与对照组相比,日粮添加1%80目白术、0.2%白术多糖、1%微米白术均可不同程度的提高十二指肠和空肠的绒毛高度,加深十二指肠和空肠的隐窝深度,并且增加肠道微生态区系的多样性,其中以1%微米白术添加组的效果最佳。  相似文献   

12.
Sissay, M.M., Uggla, A. and Waller, P.J., XXXX. Prevalence and seasonal incidence of nematode parasites and fluke infections of sheep and goats in eastern Ethiopia. Tropical Animal Health and Production, XXXX. A 2-year abattoir survey was carried out to determine the prevalence, abundance and seasonal incidence of gastro-intestinal (GI) nematodes and trematodes (flukes) of sheep and goats in the semi-arid zone of eastern Ethiopia. During May 2003 to April 2005, viscera including liver, lungs and GI tracts were collected from 655 sheep and 632 goats slaughtered at 4 abattoirs located in the towns of Haramaya, Harar, Dire Dawa and Jijiga in eastern Ethiopia. All animals were raised in the farming areas located within the community boundaries for each town. Collected materials were transported within 24 h to the parasitology laboratory of Haramaya University for immediate processing. Thirteen species belonging to 9 genera of GI nematodes (Haemonchus contortus, Trichostrongylus axei, T. colubriformis, T. vitrinus, Nematodirus filicollis, N. spathiger, Oesophagostomum columbianum, O. venulosum, Strongyloides papillosus, Bunostomum trigonocephalum, Trichuris ovis, Cooperia curticei and Chabertia ovina), and 4 species belonging to 3 genera of trematodes (Fasciola hepatica, F. gigantica, Paramphistomum {Calicohoron} microbothrium and Dicrocoelium dendriticum) were recorded in both sheep and goats. All animals in this investigation were infected with multiple species to varying degrees. The mean burdens of adult nematodes were generally moderate in both sheep and goats and showed patterns of seasonal abundance that corresponded with the bi-modal annual rainfall pattern, with highest burdens around the middle of the rainy season. In both sheep and goats there were significant differences in the mean worm burdens and abundance of the different nematode species between the four geographic locations, with worm burdens in the Haramaya and Harar areas greater than those observed in the Dire Dawa and Jijiga locations. Similar seasonal variations were also observed in the prevalence of flukes. But there were no significant differences in the prevalence of each fluke species between the four locations. Overall, the results showed that Haemonchus, Trichostrongylus, Nematodirus, Oesophagostomum, Fasciola and Paramphistomum species were the most abundant helminth parasites of sheep and goats in eastern Ethiopia.  相似文献   

13.
Tropical Animal Health and Production -  相似文献   

14.
1-(2-Chloroethyl)3-cyclohexyl-1-nitrosourea (CCNU) is an alkylating agent in the nitrosourea subclass. A prospective evaluation of CCNU was done to determine the maximally tolerated dosage of CCNU in tumor-bearing cats. Response data were obtained when available. Twenty-five cats were treated with CCNU at a dosage of 50-60 mg/m3 body surface area. Complete hematologic data were available for 13 cats. Neutropenia was the acute dose-limiting toxicity. The median neutrophil count at the nadir was 1,000 cells/microL (mean, 2,433 cells/microL; range, 0-9,694 cells/microL). The time of neutrophil nadir was variable, occurring 7-28 days after treatment, and counts sometimes did not return to normal for up to 14 days after the nadir. Based on these findings, a 6-week dosing interval and weekly hematologic monitoring after the 1st treatment with CCNU are recommended. The nadir of the platelet count may occur 14-21 days after treatment. The median platelet count at the nadir was 43,500 cells/microL. No gastrointestinal, renal, or hepatic toxicities were observed after a single CCNU treatment, and additional studies to evaluate the potential for cumulative toxicity should be performed. Five cats with lymphoma and 1 cat with mast cell tumor had measurable responses to CCNU. Phase II studies to evaluate antitumor activity should be completed with a dosing regimen of 50-60 mg/m3 every 6 weeks.  相似文献   

15.
Our particular attention in this article was given to natural mediators for macrophages isolated from the sites of tissue injury. A number of chemotactic factors, which may satisfy many criteria making them acceptable as inflammatory leucocyte chemotactic factors, has been separated. Among them, our laboratory has isolated three macrophage (monocyte) chemotactic factors (MCF-a, -b and -c). Their purification, characterization and functional specificity are discussed.  相似文献   

16.
Human and equine athletes are reported to have a high prevalence of gastric disease, and anecdotal evidence suggests a similar phenomenon applies to racing sled dogs. To investigate the prevalence of gastric disease in racing sled dogs, we conducted 2 gastroscopy studies on dogs competing in the annual Iditarod Sled Dog Race. A pilot study of dogs that were either dropped from the 2000 Iditarod Sled Dog Race because of illness or that finished the race indicated that, approximately 5 days after competing, 10 of 28 dogs (35%) had endoscopic evidence of gastric ulceration, erosion, or hemorrhage. The next year, an endoscopic study of 73 dogs participating in the 2001 Iditarod race was performed in order to evaluate a larger population of dogs. Data from 70 of these dogs could be used; 34 (48.5%) had ulceration, erosion, gastric hemorrhage, or some combination of these findings. When this group of 70 dogs was compared retrospectively to a control group of 87 dogs presented to the Texas A&M University (TAMU) Veterinary Medical Teaching Hospital, the Iditarod sled dogs had a significantly higher prevalence (P = .049) of gastric lesions. These findings suggest that, similar to athletes of other species, elite canine athletes have an increased prevalence of gastric disease compared to the canine population at large.  相似文献   

17.
Genetic variations in chromosome Y are enabling researchers to identify paternal lineages, which are informative for introgressions and migrations. In this study, the male‐specific region markers, sex‐determining region‐Y (SRY), amelogenin (AMELY) and zinc finger (ZFY) were analysed in seven Turkish native goat breeds, Angora, Kilis, Hair, Honaml?, Norduz, Gürcü and Abaza. A SNP in the ZFY gene defined a new haplotype Y2C. All domestic haplogroups originate from Capra aegagrus, while the finding of Y1A, Y1B, Y2A and Y2C in 32, 4, 126 and 2 Turkish domestic goats, respectively, appears to indicate a predomestic origin of the major haplotypes. The occurrence of four haplotypes in the Hair goat and, in contrast, a frequency of 96% of Y1A in the Kilis breed illustrate that Y‐chromosomal variants have a more breed‐dependent distribution than mitochondrial or autosomal DNA. This probably reflects male founder effects, but a role in adaptation cannot be excluded.  相似文献   

18.
Continuous rate infusion (CRI) of furosemide in humans is considered superior to intermittent administration (IA). This study examined whether furosemide CRI, compared with IA, would increase diuretic efficacy with decreased fluid and electrolyte fluctuations and activation of the renin-angiotensin-aldosterone system (RAAS) in the horse. Five mares were used in a crossover-design study. During a 24-hour period, each horse received a total of 3 mg/kg furosemide by either CRI (0.12 mg/kg/h preceded by a loading dose of 0.12 mg/kg IV) or IA (1 mg/kg IV q8h). There was not a statistically significant difference in urine volume over 24 hours between methods; however, urine volume was significantly greater after CRI compared with IA during the first 8 hours ([median 25th percentile, 75th percentile]: 9.6 L [8.9, 14.4] for CRI versus 5.9 L [5.3, 6.0] for IA). CRI produced a more uniform urine flow, decreased fluctuations in plasma volume, and suppressed renal concentrating ability throughout the infusion period. Potassium, Ca, and Cl excretion was greater during CRI than IA (1,133 mmol [1.110, 1,229] versus 764 mmol [709, 904], 102.7 mmol [96.0, 117.2] versus 73.3 mmol [65.0, 73.5], and 1,776 mmol [1,657, 2.378] versus 1,596 mmol [1,457, 1,767], respectively). Elimination half-lives of furosemide were 1.35 and 0.47 hours for CRI and IA, respectively. The area under the excretion rate curve was 1,285.7 and 184.2 mL x mg/mL for CRI and IA, respectively. Furosemide CRI (0.12 mg/kg/h) for 8 hours, preceded by a loading dose (0.12 mg/kg), is recommended when profound diuresis is needed acutely in horses.  相似文献   

19.
The objective of this report was to characterize 20-year changes in proportion of calcium oxalate (CaOx) calculi and struvite calculi in dogs, and associations with breed, age, and sex. In this retrospective study, results of analysis of urinary calculi from dogs were reviewed for specimens received between July 1, 1981, and December 31, 2001. Breed, sex, age, year of submission of the specimen, and mineral type(s) were analyzed statistically. CaOx or Struvite or both were contained in 18,966 of 20,884 (91%) specimens. For both sexes, a 20-year statistically significant increase was observed in the proportion of calculus specimens that contained CaOx. The increase in this proportion was greater in females (1% to 31%) than in males (18% to 82%). From 1998 to 2001, when proportions may have plateaued, the odds of specimens containing CaOx were markedly higher in 18 breeds, markedly lower in 5 breeds, and not significantly different in 13 breeds compared with crossbreds. For both sexes, a 20-year statistically significant decrease was observed in the proportion of calculus specimens that contained struvite. This decrease in proportion was greater for males (79-16%) than for females (97-68%). From 1998 to 2001, when proportions plateaued, the odds of calculi containing struvite were markedly lower in 20 breeds, markedly higher in 1 breed, and not significantly different in 15 breeds when compared with crossbreds. Breed, age, and sex were associated statistically with CaOx or struvite urolithiasis. In conclusion, there appears to have been a long-term increase in the proportion of specimens of canine urinary calculi that contain CaOx as well as a long-term decrease in the proportion of specimens of calculi that contain struvite for both male and female dogs. The rate of change appeared to begin leveling off in the period 1998 to 2001. The recent proportion of dogs with either CaOx- or struvite-associated urolithiasis may depend on breed, age, and sex, and on interactions among these 3 factors.  相似文献   

20.
<正>1.INTRODUCTION Ensuring transportation network security is one Of the most daunting challenges confronting homeland security agencies today.Significant research has been dedicated.To model and analyze the vulnerability of transportation systems,while notably fewer studies propose specific strategies for deploying defensive technologies to safeguard these systems.  相似文献   

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