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1.
在我国南方地区3—5月高湿条件下肉鸡极易发生肠道疾病,以排水样便、血便、肉样便以及饲料样腹泻为特征。分析了肉鸡肠道疾病的发病原因,并提出了使用低蛋白及低代谢能日粮、加强饲养管理、使用中草药调理肉鸡肠道以及饲喂河沙等具体的防控措施。以期为临床有效防控肉鸡肠道疾病提供参考。 相似文献
2.
肠毒综合征是肉鸡养殖过程中常见的一种疾病,患病肉鸡表现腹泻,粪中带料,食欲降低,食量下降,生长会逐渐变得缓慢,体重也会减轻。1病因病理肉鸡肠毒综合症一般是由于肉鸡的饲养密度太大,育雏的温度太低造成的,加上环境比较潮湿,水质不好,导致肉鸡感染球虫。如果在肉鸡的肠道黏膜细胞中寄生着一种或者多种球虫,加上有细菌或者病毒入侵,就会使肉鸡出现混合感染。 相似文献
3.
肉鸡消化不良的直观特征是在粪便中残留饲料小颗粒,如残留多量玉米时,粪便呈黄色。由于消化不良,就意味着肉鸡肠道不能充分吸收饲料营养成分,使饲料转化率降低,肉鸡生长缓慢,色素沉着减少;有时会引起腹泻或继发其它疾病。1引起肉鸡消化不良的原因 相似文献
4.
1 肉鸡肠道综合征简介 肉鸡肠道综合征又称消化吸收不良综合征、消化吸收障碍综合征、肉鸡复合型肠炎等。本病的主要表现为腹泻、粪便中含有未消化或消化不全的饲料、采食量下降或下降不明显、生长缓慢或体重减轻、鸡群均匀度差、色素沉着障碍、机 相似文献
5.
肉鸡肠毒综合症是商品肉鸡普遍存在的一种肠道性疾病,本病以腹泻、粪便中含有未消化的饲料,采食量明显下降,生长缓慢或体重减轻为主要特征。肠毒综合症多发于10～30日龄,10日龄之前,病例较少且较轻。1典型病例一肉鸡养殖户所存栏的4000只12日龄的肉鸡出现腹泻、血便、采食量下降等症状,根据临床症状和剖检变化,诊断为肉鸡肠毒综合症。2临床症状病鸡精神沉郁,采食量下降,生长缓慢, 相似文献
6.
<正>在肉鸡饲养过程中,肠道健康是获得较好生产成绩和较大利润的一个重要因素。肉鸡肠道是否健康,影响肉鸡的正常发育。因此,日常饲养管理过程中保护好肉鸡肠道健康是非常重要的,那么是什么原因导致鸡肠道疾病的呢?1引起鸡肠道疾病的原因1.1饲料与管理因素(1)使用了劣质饲料,除了营养不均衡和吸收率差外,其中的粗纤维含量可能也会超标。也有的因为添加了劣质原料,破坏了肠道内环境,损伤肠 相似文献
7.
<正>肉鸡坏死性肠炎是由产气荚膜梭菌引起的肉鸡肠道炎症,引起肉鸡腹泻,生长缓慢,严重影响肉鸡的生产性能,是肉鸡饲养中重要疫病之一。现将我地区肉鸡坏死性肠炎的发生与诊疗情况报告如下:1发病症状常发于8~12日龄的雏鸡,病鸡主要表现是腹泻,排出尚未完全消化的饲料,就是俗称的"过料",粪便中多含有气泡,病鸡消瘦、脱水,比正常鸡要小,发育缓慢;有的病鸡出现明显的神经症状,出现乱窜,翅腿麻痹,不能站立,侧瘫等现象。 相似文献
8.
由于气候变化异常,卫生条件差,肉鸡常会出现以腹泻、粪便中有未消化的饲料、采食量明显下降、生长缓慢、体重减轻、脱水和饲料报酬下降为特征的肠毒综合症。该病也叫烂肠症、肠毒血症,是近期在河南等主要肉鸡养殖区出现的一种以肠道症状为主的流行病,对肉鸡的生产造成了严重的经济损失。笔者对多种病例进行了调查研究,现将该病的临床症状、剖检变化、发病机理及防治措施综述如下:1病原及病因分析该病主要是由于饲养密度过大、育雏温度过低、环境潮湿度大、水质差等环境应激因素致使肉鸡感染球虫而发生的。当一种或多种球虫寄生于鸡肠道,加之… 相似文献
9.
<正>肠毒综合症是一种肠道综合性疾病,又称为消化吸收障碍综合症、肠道综合症、顽固性肠炎。肠毒综合症常流行于30~40日龄的肉鸡中,一年四季均可发生,夏末秋初湿热时多发。该病在临床上主要表现为腹泻,粪便中含有未消化的饲料,采食量下降,生长缓慢,脱水等。近年来,随着养殖规模的集约化,养殖业的发展,饲养设备的先进,肉鸡的肠毒综合症仍普遍流行,给肉鸡养殖行业造成巨大的经济损失。本文将笔者在7月初遇到的一例肉鸡肠毒综合症的诊疗情况进 相似文献
10.
肉鸡肠毒综合症是近几年出现的一种以表现腹泻、粪中带料为主要特征的肠道综合性疾病。它是一种多病因性疾病,外界环境变化、饲养管理不善、滥用药物等不良因素造成肉鸡小肠病变,引起球虫、魏氏梭菌等病原菌以及病毒的混合感染,导致了本病的发生。肉鸡发病后生长缓慢、体重减轻 相似文献
11.
In late December 1983, 2 800 veterinarians across Canada were sent a questionnaire in order to assess the status of heartworm disease in Canada in 1983 and 26% of them responded. Veterinarians reported that 59 504 dogs were blood-tested to check for microfilariae and 771 dogs (1.30% of those tested) were found with Dirofilaria immitis. Heartworm disease was diagnosed in all provinces except New Brunswick and Newfoundland but most (733) of the cases were in Ontario. Heartworm disease was found most frequently in companion dogs over three years of age maintained mainly outdoors in rural areas. About 31% of the cases were observed with clinical signs of heartworm disease and 64% had a history of not having left Canada. Southwestern Ontario continues to be the focus of the infection and most of the dogs there had not left the province previously. 相似文献
13.
In late December 1985, 1485 institutional veterinarians and small and mixed animal clinics across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1985 and 44% of them responded. Veterinarians reported that 137,300 dogs were blood-tested to check for microfilariae and 1210 dogs were found with heartworm. Another 36 dogs were amicrofilaremic but diagnosed with heartworm disease to give the total number diagnosed in 1985 as 1247 (0.91%). Heartworm was reported from all provinces except Prince Edward Island, Newfoundland and Saskatchewan but most (1126) of the cases were in Ontario. Southwestern Ontario continued to be the primary focus of the infection in Canada. From Quebec, 91 cases were reported mostly from and around Montreal. From Manitoba, 19 cases were reported from Winnipeg and surrounding areas. Heartworm was found most frequently in companion dogs over three years of age maintained mainly outdoors in rural areas. About 28% of the cases were observed with clinical signs of heartworm disease and 78% had a history of not having left Canada. 相似文献
14.
In late November 1988, 1581 small and mixed animal clinics and institutional veterinarians across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1988, and 46% of them responded. Veterinarians reported that 181,577 dogs were blood-tested for heartworm disease and 367 dogs were found with D. immitis microfilariae. Another 60 dogs were amicrofilaremic but diagnosed with heartworm disease to give the total number of cases diagnosed in 1988 as 441 (0.24%). 相似文献
15.
In late December 1984, 1853 institutional veterinarians and small and mixed animal clinics across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1984 and 35% of them responded. Veterinarians reported that 97,794 dogs were blood-tested to check for microfilariae and 1417 dogs (1.45% of those tested) were found with heartworm. Another 34 dogs were amicrofilaremic, but were diagnosed as having heartworm disease, to give the total number diagnosed in 1984 as 1451 (1.48%). Heartworm was reported from all provinces except Prince Edward Island and Newfoundland but most (1310) of the cases were in Ontario. In Quebec, 126 cases were reported mostly from west of Montreal. Heartworm was found most frequently in companion dogs over three years of age maintained mainly outdoors in rural areas. About 27% of the cases were observed with clinical signs of heartworm disease and 72% had a history of not having left Canada. Southwestern Ontario continued to be the primary focus of the infection. 相似文献
17.
In late November 1991, 1883 clinics in Canada were sent a questionnaire to assess the status of Dirofilaria immitis in dogs in 1991 and there was a 60.0% response. There were 344,031 dogs tested for heart-worm (HW), 627 were found infected and the prevalence of HW infection was 0.18%. There were 417 dogs with HW in Ontario, 116 in Manitoba, 38 in Quebec, 53 in British Columbia, three in Alberta, and one in Nova Scotia. In British Columbia, all of the infected dogs but one were from the Okanagan valley which, as from 1991, is a new focus of infection in Canada. Most dogs with HW had not been on preventive medication in 1990, and the prevalence among dogs tested and unprotected was 0.59%. That prevalence was considerably higher in endemic areas. Companion dogs, over three years of age and maintained primarily outdoors in rural areas, were most frequently infected. One cat was diagnosed with D. immitis and 33 dogs had Dipetalonema reconditium. 相似文献
18.
In late November 1989, 1732 clinics and institutional veterinarians were sent a questionnaire to assess the status of Dirofilaria immitis, and 51.7% responded. Of 247,716 dogs tested, 394 had D. immitis microfilariae and 51 were amicrofilaremic for a total of 445 cases and heartworm prevalence of 0.17%. Most (408) of these dogs had no preventive medication and the prevalence among dogs tested and unprotected was 1.01%. That prevalence was considerably higher in endemic areas. Thirty-seven dogs with heartworm had preventive medication. Heartworm was most frequent in companion dogs over three years of age maintained outdoors in rural areas. About 75% of the cases had never left Canada, 26% had clinical signs and 125 were not treated. Heartworm was reported from British Columbia, Manitoba, Ontario, Quebec, Nova Scotia and Newfoundland, but 383 cases were in Ontario. South-western Ontario was the primary focus of infection. There were 33 cases in Quebec and 24 in Manitoba, mainly found in and around Metropolitan Montreal and Winnipeg respectively. 相似文献
19.
In late November 1987, 1246 institutional veterinarians and small and mixed animal clinics across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1987, and 50% of them responded. Veterinarians reported that 165,428 dogs were blood tested for heartworm disease and 511 dogs were found with D. immitis microfilariae. Another 78 dogs were amicrofilaremic but diagnosed with heartworm disease to give the total number of cases diagnosed in 1987 as 589 (0.35%). 相似文献
20.
In late December 1986, 1224 institutional veterinarians and small and mixed animal clinics across Canada were sent a questionnaire in order to assess the status of Dirofilaria immitis in Canada in 1986; 46% of them responded. Veterinarians reported that 150,989 dogs were blood-tested for microfilariae and 869 dogs were found with heartworm. Another 65 dogs were amicrofilaremic but diagnosed with heartworm disease and one was found with heartworm at necropsy to give the total number diagnosed in 1986 as 935 (0.62%). Heartworm was reported from Manitoba, New Brunswick, Ontario and Quebec, but most (810) of the cases were from Ontario. South-western Ontario continued to be the primary focus of the infection in Canada. There were 103 cases reported from Quebec, mostly from and around Montreal, and 21 cases from Manitoba, from Winnipeg and surrounding areas. Heartworm was found most frequently in companion dogs over three years of age maintained mainly outdoors in rural areas. About 33% of the cases were observed with clinical signs of heartworm disease and 81% had a history of not having left Canada. 相似文献
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