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1.
大通牦牛血清淀粉酶多态性的研究   总被引：3，自引：0，他引：3  
张才骏  魏雅萍 《中国牦牛》1995,(2):18-21,31
采用聚丙烯酰胺凝胶电泳法对大通牦牛血清淀粉酶的多态性进行了研究。结果发现：（１）被检大通牦牛有ＡＭＹ１，ＡＭＹ２和ＡＭＹ３三种同工酶；（２）ＡＭＹ１同工酶受ＡＭＹ１＾Ｂ，ＡＭＹ１＾Ｙｔ ＡＭＹ１＾Ｃ三个共显性等位茵控制，其中ＡＭＹ１＾Ｙ的优势等位基因；（３）ＡＭＹ２同工酶呈单态；（４）ＡＭＹ３有３带和４带两种表型，其出现分别是９１％和９％。  相似文献   

2.
采用聚丙烯酰胺凝胶电泳法对３４头白唇鹿，５８头马鹿和１１头梅花鹿的血清淀粉酶同工酶进行了比较研究。结果发现：（１）３种鹿的血清淀粉酶都有ＡＭＹ１，ＡＭＹ２和ＡＭＹ３种同工酶，但白唇鹿ＡＭＹ１和ＡＭＹ２同工酶的相对迁移率小于马鹿和梅花鹿；（２）３种鹿的ＡＭＹ１同工酶都有ＡＭＹ１Ｆ和ＡＭＹ１Ｓ两种表型，以ＡＭＹ１Ｆ为优势表型（分别为６４．７１％，６８．９７％和８１．８２％）；（３）白唇鹿的ＡＭＹ２同工酶存在ＡＭＹ２ＡＡ，ＡＭＹ２ＡＢ和ＡＭＹ２ＢＢ３种表型，以ＡＭＹ２ＡＡ为优势表型（５０．００％）；（４）马鹿的ＡＭＹ２同工酶存在ＡＭＹ２ＡＡ，ＡＭＹ２ＡＢ，ＡＭＹ２ＢＢ和ＡＭＹ２Ｏ４种表型，梅花鹿存在ＡＭＹ２ＡＢ和ＡＭＹ２ＢＢ两种表型，以ＡＭＹ２ＡＢ为优势表型（分别为８９．６６％和９０．９１％）。  相似文献   

3.
采用聚丙烯酰胺凝胶垂直平板电泳法对３７９头青海黄牛血清淀粉酶的多态性进行了研究。结果发现：⑴青海黄牛存在ＡＭＹ１,ＡＭＹ２和ＡＭＹ３三种同工酶,但只有ＡＭＹ１同工酶存在多态性;⑵ＡＭＹ１同工酶受ＡＭＹ１＾Ｂ和ＡＭＹ１＾Ｃ一对共显性等位基因控制,两者的基因频率分别为０．５２７７和０．４７２３;⑶柴达木黄牛ＡＭＹ１同工酶的多态性特征与青海东部黄牛相同。  相似文献   

4.
白唇鹿血清同工酶酶谱的电泳研究   总被引：1，自引：1，他引：0  
采用聚丙烯酰胺凝胶电泳地对３４头白唇夜以继日的４种血清同工酶酶谱及其多态性进行研究。结果（１）酯酶包括ＥＳ１，ＥＳ２和ＥＳ３三种同工酶，其中ＥＳ２存在多态性；（２）碱性磷酸酶存在在ＡＬＰＢ和ＡＬＰＯ两种表型，以ＡＬＰＯ型为优势表型（６７．６５％）；（３）淀粉酶包括ＡＭＹ１，ＡＭＹ２和ＡＭＹ３三种同工酶，ＡＭＹ１和ＭＡＹ２两种同工酶存在多态性，（４）白唇鹿的乳酸脱氢酶显现出与众不同的同工酶酶谱。  相似文献   

5.
海兰褐鸡血清淀粉酶同工酶   总被引：1，自引：0，他引：1  
采用聚丙烯酰胺凝胶电泳法对５５只海兰褐鸡血清淀粉酶同工酶进行研究。结果：①血清淀粉酶有ＡＭＹ１，ＡＭＹ２和ＡＭＹ３三种同工酶；②ＡＭＹ２同工酶存在ＡＭＹ２ＡＡ，ＡＭＹ２ＡＢ和ＡＭＹ２Ｅ８三种表型，其表型频率分别为０．１８，０．３１和０．５１；③各同工酶区带的相对迁移率为：ＡＭＹ１１０．２１％，ＡＭＹ２ＡＡ８．１６％，ＡＭＹ２ＢＢ６．６３％，ＡＭＹ３２．０４％。  相似文献   

6.
采用聚丙烯酰胺胺凝胶电泳法对６４峰青海双峰驼的四种血清同工酶酶谱进行研究。结果表明：（１）酯酶呈现单一的ＥＳａ型；（２）淀粉酶由ＡＭＹ１，ＡＭＹ２和ＡＷＭＹ３三种同工酶组成单一酶谱；（３）乳酸脱氢酶和碱性磷酸酶同工酶酶谱存在年龄差异；（４）成年驼和幼年驼的碱性磷酸酶均有不同的同工酶酶谱。  相似文献   

7.
青海细毛羊血清淀粉酶的多态性研究   总被引：7，自引：0，他引：7  
采用聚丙烯酰胺凝胶电泳法对３７３只青海细毛羊血清淀粉酶的多态性进行了研究，表明结果：血清淀粉酶有ＡＭＹ１，ＡＭＹ２和ＡＭＹ３三部分，但只有ＡＭＹ２存在多态性，ＡＭＹ２具有ＡＭＹ２ Ａ和ＡＭＹ２Ｏ两种表型，受ＡＭＹ＾Ａ和ＡＭＹ＾ｏ一对等位基因的控制，ＡＭＹ＾Ａ对ＡＭＹ＾ｏ呈显性；有种公羊、周岁公羊和母羊组，两种ＡＭＹ２表型之间的体重，毛长和产毛量等生产性状无显著差异。  相似文献   

8.
青海半细毛羊血清淀粉酶型及其与血清蛋白质指标的关系   总被引：1，自引：0，他引：1  
金珑 《中国养羊》1997,17(3):26-27
采用聚丙烯酰胺凝胶电泳法对４８只青海半细毛羊的血清淀粉酶进行了表型分析，并研究了血清淀粉酶表型与血清蛋白质各项指标之间的关系。结果表明：①血清淀粉酶有ＡＭＹ１、ＡＭＹ２和ＡＭＹ３三种同工酶，只有ＡＭＹ２存在多态性；②ＡＭＹ２有Ａ和Ｏ两种表型，以ＡＭＹ２Ｏ为优势表型（６０．４２％）；③ＡＭＹ２Ａ和ＡＭＹ２Ｏ之间的血清总蛋白、白蛋白，球蛋白和血清蛋白各组分均无显著性差异。  相似文献   

9.
青海藏羊血清淀粉酶多态性的研究   总被引：16，自引：4，他引：12  
采用聚丙烯酰胺凝胶电泳法对２４６只青海藏羊的血样进行了血清淀粉酶多态性的研究。结果发现：①藏羊的血清淀粉酶有三种同工酶：ＡＭＹ１，ＡＭＹ２和ＡＭＹ３，但只有ＡＭＹ２具有多态性；②ＡＭＹ２位点上存在ＡＭＹ２Ａ和ＡＭＹ２Ｏ两种表型，其表型频率分别为２５．６１％和７４．３９％；③根据绵羊ＡＭＹ２受一对等位基因ＡＭＹ２￣Ａ和ＡＭＹ２￣０的支配，ＡＭＹ２￣Ａ对ＡＭＹ２￣０呈显性的假说，其等位基因频率分别为０．１３７５和０．８６２５。  相似文献   

10.
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   

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.
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   

15.
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   

16.
Comparison of different tests to diagnose feline infectious peritonitis   总被引：1，自引：0，他引：1  
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17.
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   

18.
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   

19.
正We are pleased to publish the second special issue on avian brood parasitism and to be responsible guest editors for the two special issues of Chinese Birds (Vol. 3, No. 4, 2012 and Vol. 4, No. 1, 2013), entitled "Avian Brood Parasitism - A Growing Research Area in Behavioral Ecology". The first issue was published in December 2012. The goal of the two special issues is to publish accumulated knowledge and some of the recent developments in  相似文献   

20.
Tropical Animal Health and Production -  相似文献   

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