Abstract
The basis for increasing animal husbandry is the preservation of newborns, the breeding of well-developed offspring adapted to new conditions of maintenance.
Infectious diseases of the gastrointestinal tract and respiratory tract. These diseases cause significant economic damage to the economy, which can be explained by the fact that 50-80% of offspring are affected by the disease, including 30-40% of the dead.
The article provides a brief description of escherichiosis disease, one of the most common diseases of the offspring, which has an adhesive antigen isolated from fallen and clinically healthy calves with a small characteristic of one of the most common diseases of the offspring, depending on their ability to hemolize red blood cells of various animals, and a biopsy was performed on mice. The fact that escherichia form tri-alpha -, beta - and delta-hemotoxins, E. coli, is the result of determining hemolytic activity. According to the results of the study of morphological, biochemical, antigenic and toxic properties, two strains of 6 were obtained in a special laboratory-E. coli21(K99), E. coli 36 (F-41) were sorted and used for hyperimmunization. The results of the study showed that among newborn calves, bacterial infection is of great importance in the etiology of diseases of the gastrointestinal tract.
01 Introduction
The full text of the article is available for download in PDF format on the right panel.
02 References
- 1.Yevglevskaya N.I., Ishakova T.I., Fedotov V.V. (1980). Shtammov: trusy VIEV. T.52, C.19-23 [in Russian].
- 2.Pokrovsky V.I. (1999). Medisinskaya microbiologia. M: GOETAR. Medisina. C.120 [inRussian].
- 3.Kovalchuk N.M. (1983). Podbor pitatelnyh sred i metodov kultirovania eşcherihii dlianakoplenia termostabilnogo enterotoksina. C.8 [in Russian].
- 4.Sarybaeva D.A. (2016). Metody kultirovania eşcherihii dlia nakoplenia termostabilnogoenterotoksina. «Izdenіster, nätijeler – İssledovania, rezultaty». I.2, C. 120-121 [in Russian].
- 5.İşanova A.S., Taubaev U.B., Aidarbekova S. (2018). Virulentnye svoistva pasterell«Izdenіster, nätijeler – İssledovania, rezultaty», I.1, C. 46-51 [in Russian].