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1.
某鸡场,10日龄海兰褐雏鸡发生精神沉郁,怕冷扎堆,减食或不食,羽毛松乱无光泽,卧地不起,严重的下痢,排出水样稀便,呈黄绿色,眼周围水肿和溃烂;雏鸡剖检变化为胸腹部皮下水肿,蓝绿色胶冻样.通过病史调查、临床症状、病理剖检变化、实验室诊断等诊断方法,10日龄海兰褐雏鸡确诊为雏鸡绿脓杆菌病.药敏试验表明:分离的雏鸡的绿脓杆菌对头孢曲松、恩诺沙星、氟苯尼考、头孢他定5种药物敏感.  相似文献   

2.
<正>鸡绿脓杆菌病是由假单孢菌属绿脓杆菌引起的雏鸡和青年鸡局部或全身化脓性感染或败血症的传染病。该病多威胁1~35日龄的雏鸡,以拉稀、呼吸困难和皮下水肿为特征。现将一起雏鸡绿脓杆菌病的诊治过程报道如下。1发病情况福建省顺昌县某养鸡专业户于2016年5月6日从外地调进刚出壳的雏鸡5108羽进行育雏,饲喂雏鸡颗粒料。初期生长良好,但是到了5月15日开始发  相似文献   

3.
雏鸡暴发绿脓杆菌病的诊治■王宏伟(新疆石河子市畜牧兽医工作站832000)1996年5月,石河子某养鸡场饲养的4日龄艾维因肉仔鸡,发生一起以头、颈、胸腹部及两腿内侧皮下水肿、淡绿色胶冻样渗出物为主要特征的一种疾病,诊断为绿脓杆菌感染,现报告如下。一....  相似文献   

4.
鸡绿脓杆菌病是由绿脓杆菌引起鸡的一种急性败血性疾病,以呼吸困难、拉稀、皮下水肿为特征,主要危害1~35日龄的雏鸡,危害性非常大。主要结合多年的临床鸡病诊疗经验,就鸡绿脓杆菌病的流行特点、诊断方法及综合防治措施作一介绍.旨在为广大养殖户有效防治该病提供参考。  相似文献   

5.
鸡绿脓杆菌病是由绿脓杆菌引起的一种败血性疾病,其对雏鸡的危害较大。随着养禽业的发展,陆续发现有鸡群被感染,且被感染的多为10~25日龄的雏鸡,以10日龄左右的鸡发病率及死亡率为高。  相似文献   

6.
将AEV VR株种毒经卵黄囊接种6日龄SPF鸡胚复壮,然后取复壮的病毒作为种毒经卵黄囊接种6日龄SPF鸡胚扩大培养病毒,继续孵化至18日龄,收取病变明显的鸡胚脑组织、胰腺和小肠,充分研磨后经差速离心和CsC l密度梯度离心提纯AEV,取经密度梯度离心后的样品进行电镜观察其纯度,并经脑内接种1日龄SPF雏鸡观察其致病情况及其病理变化,结果证明获得了纯化的AEV。  相似文献   

7.
廖可财 《兽医导刊》2020,(4):128-128
鸡绿脓杆菌病,由绿脓杆菌引起的雏鸡传染病。以拉稀、呼吸困难、皮下水肿为特征。治宜抗菌消炎。绿脓杆菌病本病由革兰氏阴性的绿脓杆菌感染引起,主要危害10日龄内的雏鸡,同时具有较高的死亡率。本病同近年来在各地时有发生,已成为威胁养鸡业发展的主要疾病之一。不同日龄的鸡均有可能会感染鸡绿脓杆菌病。本文笔者根据工作实际首先分析了鸡绿脓杆菌病的流行特点、临床症状,以及病理变化,其次,深入探讨了鸡绿脓杆菌病的防治措施。  相似文献   

8.
接种疫苗引发鸡绿脓杆菌病的诊断与治疗王福传(山西省农科院畜牧兽医研究所太原030032)绿脓杆菌是自然界中一种常在菌,主要是通过破损的皮肤、粘膜而侵入鸡体,引发鸡群发病。山西省忻州市某鸡场饲养的6000只伊莎褐雏鸡在7日龄免疫注射新城疫油苗后的第二天...  相似文献   

9.
鸡绿脓杆菌病以呼吸困难、拉稀、皮下水肿为特征,是由绿脓杆菌引起鸡的一种急性败血性疾病,危害性非常大,主要危害1~35日龄的雏鸡。本文就鸡绿脓杆菌病的流行特点、诊断方法及综合防治措施作一介绍,主要结合多年的临床鸡病诊疗经验进行论述。  相似文献   

10.
初生雏鸡的绿脓杆菌感染,已有多篇报道。主要特征是侵害1—7日龄雏鸡,发生败血症,死亡率较高。1991年5月京郊某鸡场7日龄雏鸡大批发生绿脓杆菌性关节炎,报告如下。  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.
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.
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