Epidemiological Survey Of PPR Of Goats In Hunan Province From 2014 To 2016

In order to grasp the epidemic situation of Peste des petits ruminants(PPR)in Hunan province,this paper used method of describing epidemiology and analyzing epidemiology to conduct a retrospective epidemiological survey of PPR case from Hunan Province Animal Disease Prevention and Control Center in 2014-2016.What’s more,the immune effect of scale goat farm was evaluated by ELISA method.The results of the survey are mainly from time,region,epidemic intensity,scale of cultivation,causes of outbreak and propagation path Among all the 70 cases of PPR epidemic in 2014-2016,among which 53 cases in 2014,15 cases(21.4%)were PPR in 2015,2 cases(2.9%)were PPR in 2016,The number of cases show a decreasing trend;In 2014-2016 PPR cases were mainly distributed in Hunan Province at all levels of municipalities,of which the largest number of Xiangtan City,followed by Changsha City and Zhuzhou City;The investigation of all the 63 goats farms found that there were 8055 goats,among them,there were 3904 goats had disease and 2315 were dead.The morbidity was 48.5% and the case fatality rate was 59.3%;of which 100 or less small farms up to 63.4%;55(78.57%)farmers purchased or introduced goats before the occurrence of PPR,which shows illegal transportation is the main reason for the spread of PPR in Hunan Province and the epidemic is divergent after the epidemic came from other province.In the 2014-2016,1214 serum samples were collected from the goat in the 14 cities and counties of the province,and the antibody level was detected using the ELISA antibody detection kit.The results showed that the level of goat immunized antibody in Hunan province was not reach 70% of the national standard in 2014-2015,and the level of immune antibody was 70% in 2016.Its differences reach a very significant level,which indicated that the control effect of goat field was increasing from 2014 to 2016,and the immune effect was increasing,but the immunization effect was not balanced.Small and medium-sized farms immunization situation is not ideal,goat farm breeding scale is greater than 300 immune effect better.The results of the above survey shows that in the period from 2014 to 2016,the incidence of small ruminants in 14 cities in Hunan Province decreased year by year,and the illegal transmission of poisonous animals was the main reason for the spread of the epidemic in Hunan Province.,To carry out immunization and other measures,a small ruminant epidemic situation significantly reduced,small ruminant epidemic situation has been effectively controlled in Hunan Province.In 2014-2016,14 provinces in Hunan Province,the level of immune antibody gradually increased,the city more and more attention to the small ruminant animal immunization prevention measures,through the province’s municipalities to strengthen the supervision of live goat transport,strengthen the immune coverage and immunization Success rate,and vigorously promote the management of small ruminant pest control knowledge,so that Hunan Province as soon as possible no small anti-ruminant province.