Investigation On Present Situation Of Poultry Disease Prevention And Control In Wangyi District Oftongchuan City

With the rapid development of modern poultry industry, the farming model graduallyshifts to large-scale, intensive model. But with the rapid development of high density ofbreeding, a series of poultry diseases are also accompanied, and its complexity is alsogradually rising, making the poultry disease prevention is particularly important. Wang Yidistrict is located in the middle of Tongchuan city. There are three villages specialized forpoultry industry,6large-scale farms. There are total502,400poultry. The poultry industrydevelopment trend is good.In2013, through the investigation on the epidemiology, etiology, serology of poultrydiseases and the national animal concentrated immune conditions in Wangyi district ofTongchuan city, the principles of poultry disease occurrence and epidemiology were analyzed.This study surveyed285cases in large-scale and free-range poultry farms. The results showedthere were14570sick chickens in the area, the incidence was3%, including viral diseases andbacterial diseases accounted for a high proportion31%and30%, respectively, and parasiticdiseases (20%), other disease (including nutritional diseases and poisoning disease, etc.)accounted for19%. Epidemiological survey results showed that, in63poultry farms(households),2512chickens died out of total amount of502400, for the most part ofEscherichia coli and Salmonella infections were the main causes of death. Through statisticalanalysis, chicken death cases caused by virus diseases mainly included chicken infectiousbronchitis (39%), low pathogenic avian influenza (25%), Newcastle disease (19%), chickeninfectious bursal disease (16%) and chicken pox disease (1%). Chicken death cases caused bybacterial diseases mainly included chicken colibacillosis (52%), avian salmonellosis (36%),avian mycoplasmosis (12%). Chicken death cases caused by parasitic diseases mainlyincluded chicken coccidiosis(59%) and ascaridiasis (41%). The pathogens and immuneantibody testing results of major animal epidemic diseases showed that, in tested227samples,the positive pathogen number of highly pathogenic avian influenza H5subtype is0. In223seral samples of chickens immunized with the vaccine of highly pathogenic avian influenzaH5subtype, the qualified immune antibody number is221, the qualified rate is99.10%. Intested190samples, the positive pathogen number of Newcastle disease virus is0. In176seralsamples of chickens immunized with Newcastle disease vaccine, the qualified immune antibody number is164, the qualified rate is93.18%. The H7antibody test results of110seralsamples showed negative.The survey results showed that the incidence of poultry diseases was relatively stable inWangyi district. The incidence occurred in the multi-dotted dominated form, no large-scaleoutbreak occurred. The investigation on the incidence of poultry diseases of poultry farmsin recent years showed that the immune antibody levels were higher, reached the standards setby the National Ministry of Agriculture.