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1.
采用聚丙烯酰胺凝胶垂直平板电泳法对３５７头青海东部黄牛血清运铁蛋白的多态性特征进行了研究。结果发现：（１）青海东部黄牛血清运铁蛋白的多态性受ＴＦ＾Ａ,ＴＦ＾Ｂ,ＴＦ＾Ｄ,ＴＦ＾Ｆ５个等位基因控制,有１２种基因型,其中ＴＦ＾Ｄ为优势等位基因（０．６０５０）,ＴＦ ＤＤ型为优势基因型（３４．４５％）;（２）青海东部黄牛ＴＦ基因座群体间基因分化程度（Ｇｓｔ为０．０５％）以及第一个等位基因的分化程度（最大  相似文献   

2.
青海细毛羊血清运铁蛋白多态性的研究   总被引：8，自引：0，他引：8  
采用聚丙烯酰胺凝胶电泳法对４０１只青海细毛羊的血清运铁蛋白多态性进行了研究。结果表明：①青海细毛羊血清运铁蛋白座位上有ＴＦＡ，ＴＦＧ，ＴＦＢ，ＴＦＣ，ＴＦＤ，ＴＦＭ，ＴＦＥ和ＴＦＱ８个等位基因，其中ＴＦＣ（０．３８７８）和ＴＦＡ（０．２４９４）为优势等位基因；②已发现ＴＦＡＡ，ＴＦＡＧ，ＴＦＡＢ，ＴＦＡＣ，ＴＦＡＤ，ＴＦＡＭ，ＴＦＡＥ，ＴＦＡＱ，ＴＦＧＧ，ＴＦＧＢ，ＴＦＧＣ，ＴＦＧＤ，ＴＦＢＢ，ＴＦＢＣ，ＴＦＢＤ，ＴＦＢＭ，ＴＦＣＣ，ＴＦＣＤ，ＴＦＣＭ，ＴＦＣＱ，ＴＦＤＤ，ＴＦＤＭ，ＴＦＤＥ２３种基因型，以ＴＦＡＣ（２０．９５％）的出现频率最高；③ＴＦ座位的基因杂合度为０．７３８１；④在公羊组和母羊组，ＴＦ基因型与体重、毛长和产毛量之间无显著性联系。  相似文献   

3.
采用聚丙烯酰胺电泳对１３１匹柴达木马血清白蛋白的多态性进行研究。结果：（１）柴达木马血清白蛋白基因座有ＡＬＡ＾Ａ和ＡＬＢ＾Ｂ两个等位基因，基因频率分别为０．４１２２和０．５８７８；（２）柴达木马存在ＡＬＢ ＡＡ，ＡＬＢ ＡＢ和ＡＬＢ ＢＢ三种基因型，以ＡＬＢ ＡＢ为优势基因型；（３）基因杂合度为０．４８４６，有效等位基因数为１．９４个。  相似文献   

4.
青海藏羊血清运铁蛋白多态性的研究   总被引：8，自引：1，他引：7  
采用聚丙烯酰胺凝胶电泳法对青海省三角城种羊场和达日县的１９６份藏羊血样进行了血清运铁蛋白多态性的研究。结果发现：①在被检藏羊的血清运铁蛋白位点上共发现ＴＦ￣Ｉ，ＴＦ￣Ａ，ＴＦ￣Ｇ，ＴＦ￣Ｂ，ＴＦ￣Ｌ，ＴＦ￣Ｃ，ＴＦ￣Ｄ，ＴＦ￣Ｍ，ＴＦ￣Ｅ，ＴＦ￣Ｑ和ＴＦ￣Ｐ１１个等位基因，其中ＴＦＣ（０．３２４０），ＴＦ￣Ｂ（０．２６７９）和ＴＦ￣Ｄ（０．２１６８）为优势等位基因；②共发现ＴＦＩＥ，ＴＦＡＡ，ＴＦＡＢ，ＴＦＡＣ，ＴＦＡＤ，ＴＦＡＭ，ＴＦＧＢ，ＴＦＧＬ，ＴＦＧＣ，ＴＦＧＤ，ＴＦＢＢ，ＴＦＢＣ，ＴＦＢＤ，ＴＦＢＭ，ＴＦＬＣ，ＴＦＬＤ，ＴＦＬＥ，ＴＦＣＣ，ＴＦＣＤ，ＴＦＣＥ，ＴＦＣＱ，ＴＦＣＰ，ＴＦＤＤ，ＴＦＤＭ，ＴＦＤＥ和ＴＦＤＱ２６种基因型，其中ＴＦＢＣ（２０．４１％）、ＴＦＣＣ（１３．７８％）和ＴＦＢＤ（１１．７４％）为优势基因型。  相似文献   

5.
采用聚丙烯酰胺凝胶电泳法对７１头互助白牦牛４种血液蛋白质的多态性进行研究。结果表明：（１）血红蛋白显著ＨＢＦ＾＋Ｓ＾－，ＨＢ ＦＳ和ＨＢＦ＾－＾Ｓ＋三种表型，其表型频率分别为４．３％，９４．３％和１．４％；（２）血清白蛋白、血清运铁蛋白和血清亲血色蛋白均呈单态，显现单一的ＡＬＢＡＡ，ＴＦＤＤ和Ｈｐｌ－１型；（３）互助白牦牛４种血液蛋白质的Ｐｐｏｌｙ为２５．０％，Ｈ为０．０２７３。  相似文献   

6.
共和本地山羊血清运铁蛋白多态性   总被引：2，自引：0，他引：2  
白玉轮 《中国养羊》1997,17(4):28-29
采用聚丙烯酰胺凝胶电泳对７８只共和本地山羊血清运铁蛋白的多态性进行了研究，结果发现：被检山羊有ＴＦＡＡ、ＴＦＡＢ、ＴＦＢＢ三种基因型，以ＴＦＡＡ型为优势基因型（７０．５％）；ＴＦＡ和ＴＦＢ等位基因频率分别为０．８３３３和０．１６６７；基因杂合度和有效等位基因数分别为０．２７７９和１．３８５。经遗传距离计算和聚类分析表明，共和本地山羊和藏山羊、乐都本地山羊有较近的亲缘关系。  相似文献   

7.
青海藏獒血液蛋白质多态性的初步研究   总被引：5，自引：0，他引：5  
采用聚丙烯酰胺凝胶电泳法对２１条青海藏獒３种血清蛋白质的多态性进行研究。结果表明：血清白蛋白呈现单一的ＡＬＢＢＢ型;运铁蛋白存在ＴＦＡＢ、ＴＦＢＢ、ＴＦＢＣ、ＴＦＣＣ四种基因型,ＴＦＡ、ＴＦＢ和ＴＦＣ等位基因频率分别为００２２７、０７９５５和０１８１８;后白蛋白存在ＰｏＢＢ、ＰｏＡ′Ｂ、ＰｏＡ－Ｂ和ＰｏＡＢ－四种表型,其表型频率分别为４２８５％、１４２９％、２３８１％和１９０５％。  相似文献   

8.
乐都本地山羊血清运铁蛋白多态性   总被引：2，自引：1，他引：1  
采用聚丙烯酰胺凝胶电泳对８０只乐都本地山羊血清运铁蛋白的多态性进行研究。结果：被检山羊中有ＴＦＡＡ和ＴＦＡＢ两种基因型，以ＴＦＡＡ型为优势基因型（８６．３％）；ＴＦＡ和ＴＦＢ等位基因频率分别为０．９３１和０．０６９；基因杂合度和有效等位基因数分别为０．１２８和１．１４７。聚类分析表明，乐都本地山羊与藏山羊、英国阿尔卑山羊有较紧密的遗传联系。  相似文献   

9.
互助白牦牛血液蛋白质多态性的研究   总被引：3，自引：0，他引：3  
采用聚丙烯酰胺凝胶电泳法对７１头互助白牦牛４种血液蛋白质的多态性进行研究。结果表明：（１）血红蛋白显现ＨＢＦ￣＋Ｓ￣－，ＨＢＦＳ和ＨＢＦ￣－Ｓ＋三种表型，其表型频率分别为４．３％，９４．３％和１．４％；（２）血清白蛋白、血清运铁蛋白和血清亲血色蛋白均呈单态，显现单一的ＡＬＢＡＡ，ＴＦＤＤ和Ｈｐｌ－１型；（３）互助白牦牛４种血液蛋白质的Ｐｐｏｌｙ为２５．０％，Ｈ为０．０２７３。  相似文献   

10.
青海细毛羊血红蛋白和红细胞蛋白质多态性的研究   总被引：5，自引：0，他引：5  
采用聚丙烯酰胺凝胶电泳法对４７９只青海细毛羊的血红蛋白和红细胞蛋白质的多态性进行研究。结果发现：①青海细毛羊的血红蛋白基因座上有ＨＢＡＡ，ＨＢＡＢ，ＨＢＡＣ和ＨＢＢＢ四种基因型。ＨＢ＾Ａ，ＨＢ＾Ｃ等位基因频率分别为０．２６４１，０．７３４９和０．００１０；②血红蛋白基因座的基因型频率和基因频率没有性别间差异；③青海细毛羊ＥＰ－１和ＥＰ－２是单态性蛋白质。  相似文献   

11.
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   

12.
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   

13.
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   

14.
Tropical Animal Health and Production -  相似文献   

15.
The epidemiology of H. placei and of other gastrointestinal nematodes in yearling dairy cattle was examined on two farms in Kiambu District, central Kenya during each of 13 one-month periods from April 1993 to April 1994. On each farm, 32 newly weaned dairy calves were given a single dose of albendazole and then placed on experimental pastures. Twelve of the animals were designated for bi-monthly slaughter (n = 2) and analysis of worm population characteristics and 20 were designated for blood and faecal collection and for weighing. Two parasite-free tracer calves were grazed alongside the weaner calves each month throughout the study period and were also slaughtered for analysis of worm populations. Faecal egg counts, haematological and serum pepsinogen determinations, herbage larval counts, and animal live weight changes were recorded monthly. The study revealed that Haemonchus placei, Trichostrongylus axei, Cooperia spp. and Oesophagostomum radiatum were responsible for parasitic gastroenteritis and that H. placei was the predominant nematode present in the young cattle on both farms. Faecal egg counts from resident cattle and necropsy worm counts revealed that pasture larval levels were directly related to the amount of rainfall. The total worm burdens in the animals were highest during the rainy season (March–June and October–December) and lowest during the dry seasons (July–September and January–February). The very low recovery of immature larvae of H. placei from the tracer calves indicated that arrested development is not a feature of the life cycle of this parasite in central Kenya. The maintenance of the parasite population depended on continuous cycling of infection between the host and the pasture. The agroclimatic conditions of the study area were such that, in general, favourable weather conditions for the development and survival of the free-living stages of gastrointestinal nematodes existed all year round.  相似文献   

16.
The occurrence of ectoparasites in sheep flocks is frequently reported but seldom quantified. Sheep production used to be a predominantly family activity in the state of Sa~o Paulo (Brazil), but it began to become a commercial activity in the past decade. Thus, information about the ectoparasites existing in sheep flocks has become necessary. The present data were obtained by means of questionnaires sent to all sheep breeders belonging to the `Associaça~o Paulista de Criadores de Ovinos' (ASPACO; Sa~o Paulo State Association of Sheep Breeders). Response reliability was tested by means of random visits paid to 10.6% of the respondents. Most of the properties (89.5%) reported the presence of one or more ectoparasites. Screw-worm (Cochliomyia hominivorax) was the most frequent ectoparasite (72.5%), followed by bot fly larvae (Dermatobia hominis, 45.0%), ticks (Amblyomma cajennense) and Boophilus microplus, 31.3%) and finally lice (Damalinia ovis, 13.8%). Combined infestations also occurred, the most common one being screw-worm with bot fly larvae (36.0%) followed by bot fly larvae with ticks (13.9%), screw-worm with ticks (9.3%), bot fly larvae with lice (6.9%), and ticks with lice (5.0%). The most common triple combination was screw-worm, bot fly larvae and ticks (12.8%). Breeds raised for meat or wool were attacked by bot fly larvae and ticks more often than other breeds. Lice were only absent from animals of indigenous breeds. The relationships among these ectoparasites are discussed in terms of sheep breeds, flock size, seasonality and the ectoparasitic combinations on the host.  相似文献   

17.
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   

18.
Comparison of different tests to diagnose feline infectious peritonitis   总被引：1，自引：0，他引：1  
  相似文献   

19.
An experiment was conducted to study disappearance of C14 to C18 fatty acids, lag times and biohydrogenation (BH) rates of C18 fatty acids of ground soya bean and canola seeds in situ. Three ruminally fistulated Dallagh sheep were used to determine ruminal BH of unsaturated fatty acids (UFAs). Differences in the disappearance of fatty acids through the bags and lag times were observed between the oilseeds. We saw that the longer the incubation time of the oilseeds in the rumen, the lower the content of C18:2 and C18:3. Significantly higher lag times for both C18:2 and C18:3 were observed in ground canola compared to ground soya bean. BH rates of C18:2 and C18:3 fatty acids in soya bean were three times higher than those of canola. These results suggest that the fatty acid profile of fat source can affect the BH of UFAs by rumen micro‐organisms. So that UFAs of canola had higher ability to escape from ruminal BH. It seems that fatty acid profile of ruminant products is more affected by canola seed compared to soya bean seed.  相似文献   

20.
Serum biochemical values and the wet weight to dry weight ratios of tissues were determined in yaks in Shandan county of Gansu province. The liver, kidney, heart and muscle contents of seven elements in yaks were also analysed. Most serum biochemical values were similar to those of cattle, camels and sheep, but the calcium concentration was considerably above the normal range for other ruminants. The liver contained the highest concentrations of copper, manganese and cobalt and the kidney of selenium, iron and calcium.Abbreviations Alb albumin - ALT alanine aminotransferase - AST aspartate aminotransferase - BUN blood urea nitrogen - Chol cholesterol - Glob globulin - -GT -glutamyl transpeptidase - IP inorganic phosphorus - TP total protein  相似文献   

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