Results of serological examinations of blood serum of sheep on revelation of virus respiratory infections (parainfluenza-3, adenovirus and respiratory syncytial) realized in the conditions of the Kyrgyz Republic were presented. Research results showed that in farm and peasant farm holdings of all studied districts of the Kyrgyz Republic of three types of pneumo viral infections simultaneously give high levels of antibody titers in relation to parainfluenza-3 – 1:128, adenovirus – 1:32, respiratory syncytial infection – 1:16. In some districts sheep population was diseased only by parainfluenzal infection in relation with titer of specific antibodies 1:256

The article features the data on scientific research of the spread and etiology of bovine dermatophytoses. Work was carried out in 2007-2009 in farm holdings of Minsk and Vitebsk regions of the Republic of Belarus. Principal causes of diseases occurrence are the mechanical traumas caused first of all by infringement of animals maintenance of hygienic norms, also infringement of animals feeding technology. The automicroflora on intact skin has been studied. Realized study helped to determine methods and means of dermatophytoses treatment.

The realized studies of an experimental series of inactivated vaccine showed that the developed biological preparation made it possible to achieve high preventive efficiency in the conditions of cows heavy with calves for the creation in newborn calves the expressing immunity after milk feeding in the first hours of their life. As a result realized in the conditions of the Republic of Belarus production experiment of emulsified vaccine against rotavirus infection and colibacillosis of cattle in animal breeding farms of different regions of the Republic the prophylactic efficacy of a developed vaccine made up 97,9-98,9%. Research results showed that the developed inactivated vaccine caused at the immunizated animals the formation of specific antibodies at a higher level in comparison with other analyzed national and foreign analogue preparations.

Research results showed that in the conditions of correct organization and application of technological methods of livestock breeding and feeding it was possible to achieve high livability rate of sheep and lambs up to 90%. Also it was possible to get a substantial break of infection chain of many sheep diseases (especially those which had a respiratory nature). Research results showed that simultaneous application of convalescent-phase serum against sheep acute respiratory diseases, as well as Nitox 200 and Invamek for treatment of sheep and especially 2-3 month old lambs with respiratory infectious diseases promoted the recovery of 80-100% of animals.

Analysis of national studies and literary sources on problems of haemophilus pleuropneumoniae of swine was realized in the conditions of the republic of Belarus. Research was realized in the conditions of Agricultural Production Co-operative Uritskoe (Gomel region, Belarus). It was established that medical actions gave positive result only at early stages of disease.

There were presented data on etiology, specific prophylaxis and treatment of the most widespread infectious diseases of fishes in the Republic of Belarus: aeromonosis, pseudomonosis, swim bladder inflammation (air bladder disease), viral branchionecrosis. For the preparation of highly efficient specific medical and veterinary preparations it was recommended during the outbreaks of fish diseases to allocate the local pathogens on the basis of which it was recommended to produce vaccines both for perinatal and immersion administration for their wide use both for commodity fishes and for different ages and categories

There was presented a territorial analysis of epizootic situation on rabies in the administrative districts and regions of the Republic of Belarus in the period from 1986 up to 2008. The situation of strain was stated on the territory of Vitebsk (28, 4%) and Minsk (20,2%) regions. The most stable epizootic situation was stated in Shumilin, Braslavsk and Vitebsk districts of Vitebsk region, as well as in Vologin and Minsk districts of Minsk region. Only in 1990 and 1997 there were stated no cases of rabies in Brest and in 1996 in Mogilev regions. In other years no regions were free from this infection. Economic damage from rabies cases in agricultural animals in period 1986-2008 was over 2 milliard of Belarusian rubles.

Determination of influence of long acting antihelminthics (Aversictini boluses and boluses with albendazole) and influence of usual antihelminthics (farmatsin, alverm, fenbendavet) on first stomachanimal digestion, as well as on quantity and quality composition of microflora and microfauna in first stomach and large bowel was realized in the conditions of the Republic of Belarus. In course of the experiment there were used 6 groups of calves infested with helminths (Neoascaris vitulorum, Strongylata sp.). Research result showed that different antihelminth preparations to a greater or lesser degree rendered negative influenced on quantity and quality composition of microorganisms in first stomach and large bowel of cattle. Alverm and boluses with albendazole rendered the least influence on microflora and microfauna that could be explained by low toxicity of active substance (albendazole) of the above preparations. Aversictini boluses, fenbendavet, and farmastin changed the composition of microorganisms. It could be explained by high toxicity of preparations containing aversictini which rendered influence not only of gastro-intestinal tract but also on the whole organism. Active ingredient of mentioned above preparations (Aversektin C), being the product of microbial synthesis, rendered the antagonist action on the normal microflora of digestive tract. Negative influence of fenbendavet was caused by the chemical composition of the preparation and neurotoxic action of fenbendazol

A method of development of highly purified antigen of a virus of classical swine fever (Sinlak strain) for definition of antibodies in enzyme multiplied immunoassay (ELISA) was tested in the conditions of the Republic of Belarus. There were determined parameters of sensitivity and specificity. There was developed a method of partial purification of the antigens by means of obtaining of infected leukoconcentrate, settling of virus by means of ammonium sulfate with the further ultrafiltration through a membrane

The article deals with the prevention problem of digestive system diseases in pig-breeding and therapeutic measures perfecting for these diseases. In article are given new methods of prevention without using antibiotics