奶牛焦虫病的防治

奶牛焦虫病可分为牛双芽巴贝斯焦虫和牛巴贝斯焦虫病与牛环形泰勒焦虫病三种。奶牛和各品种的黄牛、肉牛、役牛等可被感染。     

认识犬梨形虫病

<正>犬梨形虫病是由蜱为媒介感染犬的一种寄生虫病,主要引起犬体温升高(40℃以上)、精神沉郁、高度贫血、逐渐消瘦等症状,使机体出现全身性机能紊乱,特别是血液中红细胞破坏严重,往往虚脱衰竭死亡。犬梨形虫病流行条件必须具有病原体、蜱、犬三种生物体,病原体是一种永久性寄生     

Control of equine piroplasmosis in Brazil.

The importance of equine piroplasmosis control in endemic countries has increased in recent years and plays an important role to maintain the international market open to the horse industry. The purpose of this study was to demonstrate the occurrence of equine piroplasmosis (Babesia equi or Theileria equi and Babesia caballi) in Brazil--a country where the disease occurs endemically--in different climatic conditions, and to evaluate the results of a strategy for tick control in order to decrease infection rates. Blood samples were taken from 720 horses on 28 farms from different regions and subjected for complement fixation testing. The strategy was based on the control of the tick population by spraying the horses with acaricides, treating positive horses and preventing cattle and horses from grazing together. A significant association was found in the prevalence of antibody titres in tropical and subtropical areas. A significantly lower prevalence rate occurred on those farms where measures to control tick population were established. Farms in endemic countries may significantly reduce the prevalence of equine piroplasmosis by establishing measures to control the tick population and treating chronic carrier horses. Additional measures for controlling ticks in tropical areas are also discussed.     

Epidemiological study of equine piroplasmosis in Mongolia

The purpose of this study was to demonstrate the occurrence of equine piroplasmosis in Mongolia, a country in which the disease occurs epidemically in different climatic conditions. Antibodies to Babesia equi and B. caballi were determined in serum samples of 254 pastured horses in different locations of Mongolia using an enzyme-linked immunosorbent assay with recombinant antigens. One hundred and eighty-five (72.8%) and 102 (40.1%) of all serum samples were positive for B. equi and B. caballi infections, respectively. In addition, 78 (30.7%) samples were positive for both B. equi and B. caballi infections. These results indicate that equine piroplasmosis is widespread in Mongolia. To our knowledge, this is the first report describing an epidemiological study on equine piroplasmosis in different geographic regions in Mongolia.     

Equine piroplasmosis: a review.

This review focuses on equine piroplasmosis with specific reference to its distribution, diagnosis and clinical and pathological signs. The more common used drugs are discussed both with reference to treatment and chemosterilization. Areas requiring further research are also briefly mentioned.     

Equine piroplasmosis: An updated review

Equine piroplasmosis (EP) is a tick‐borne protozoal disease. The causative agents are Babesia caballi and Theileria equi. Horses infected with T. equi remain carriers for life. Iatrogenic means can also be factors for transmission. Typical clinical signs of acute EP can include fever, anorexia, anaemia, icterus, congested mucous membranes, tachypnoea and tachycardia, sweating, and limb and supraorbital oedema. In severe cases, haemoglobinuria and bilirubinuria are present as well as a variety of atypical presentations due to organ damage and dysfunction. Because clinical pathology is not specific of EP, accurate diagnosis requires specific diagnostic tests. The value and the pertinence of blood smears, polymerase chain reaction and serological tests are presented. Imidocarb propionate is considered as the drug of choice against EP. However, treatment strategies differ greatly between endemic and nonendemic regions. In endemic regions the goal is to reduce clinical disease because premunition plays an important role in the protection of horses, while in nonendemic regions the goal of treatment is to eliminate the risk of transmission with sterilising treatment protocols. As there is no effective vaccine available to date, prevention relies mainly on drug therapy, restriction in the movement of infected horses, and control of tick vectors.     

重组白细胞介素-2对羊焦虫病的疗效观察

羊焦虫病是由吓氏泰勒焦虫和隐藏泰勒焦虫所引起的一种血液寄生虫病,血蜱为本病的传播者,不同年龄和品种的羊均可发病。该病发病急,流行快,对羊群的危害很大。白细胞介素-2(Interleukin-2,IL-2,又称T细胞生长因子),是体内重要的免疫调