Avaliação do estado sanitário de camarões (Litopenaeus vannamei) cultivados em quatro fazendas no Estado do Ceará

Abstract

Aquaculture is growing faster than primary than any other sector of food production d eorigem animal, and the amis qeu own population within this segment is that the shrimp is an important role in econoimia world, because the number of jobs generated and the volume commercialized. However, as in qualqeur animal farming, shrimp farming, is facing problems with diseases, both bacterial and viral, and the viral origin of those that cause major economic losses. Considering the impact that illness can cause to crops, this research seeks to investigate its occurrence in shrimp farms of the State of Ceará. For the study we selected four farms growing shrimp species Litopenaeus vannamei in two estuaries of Ceará State, one in Aracati (Jaguaribe River) and another in Acaraú (Rio Acaraú). The survey was conducted in two seasons: summer and rainy during two stages of the crop cycle, a sampling when the shrimp were with 4g and 8g others when reached. In each sample 80 shrimp were captured, of which 60 were for histopathological analysis and 20 for the analysis of fresh. The results of the analysis showed the presence of cool little uniformity in the hepatopancreatic tubules, little uniformity in individuals, and the presence of gregarinas fouiling and epicomensais occurrence. The histopathological analysis detected the presence of bacterial eenfermidades d: Hepatopancreatite vibriosis and necrotizing (NHP), diseases of viral etiology: Viral Infectious myonecrosis (IMNV) Virus Infection and Hipodermal and haematopoietic necrosis (IHHNV), and the presence of parasites like epicomensais and endoparasites. The study may conclude that the IMNV had its highest prevalence during the rainy season and, IHHNV, NHP, for the period of summer. The Vibrio Infections have not had relations with the seasons, and the disease is most prevalent throughout the study next to the subcuticular necrosis