Rabbits, like other animal species, are susceptible to infection with invasive and infectious diseases. Both ecto- and endoparasites are registered in them, including helminths, insects on the body, acarus scabies, protozoa. Rabbits are characterized by a high degree of precocity, high fecundity and the breadth of use of the products obtained from them. As a product of rabbit breeding, first, meat is in demand as a dietary product. Part of the products from rabbits - hair, wool-molt is obtained during the life of the animal, and meat, skins, other products - after slaughter. Skins and rabbit hair are used for the manufacture of fur products, as well as in the felt and knitting industry. In addition, biologists, doctors, veterinarians use rabbits as laboratory animals in scientific research, for testing cosmetics, as well as in laboratories and bio factories for drug testing. To preserve the population of these species, it is important to prevent infection with various pathologies inherent in rabbits, including invasive diseases.

The article studies the effect of different probiotics on the concentration of heavy metals in the muscle tissue of broiler chickens amid hypotrophy and their correction with probiotics. The experiment was conducted on broiler chickens of Smena 7 cross at ZAO “Orenburg Broiler” of the Orenburg region. The feeding and maintenance of broiler chickens were the same. The feeding ration comprised complete compound feed. The difference was as follows: hypotrophic experimental groups additionally included probiotics Vetom 1.1 at a dose of 6 g/kg feed and Lactobifadol at a dose of 1.2 g/kg feed in the main diet starting from one day of age to 42 days of age. The results obtained enable to determine that the probiotics used have a significant effect on the chemical parameters of broiler chicken meat particularly amid hypotrophy. It has been established that probiotics reduce the concentration of toxic elements in muscle tissue. It has also been proven that these probiotics do not significantly affect the content of heavy metals in the muscle tissue of broiler chickens.

The purpose of our research was to monitor the safety and quality of slaughter products of cattle and small cattle obtained in the conditions of the Aktobe region. Under certain conditions, animal slaughter products can be a source of not only typical infectious and invasive diseases in humans (echinococcosis, cysticercosis, etc.), but also various food diseases, which include toxicoinfections and toxicoses. Toxicoinfections and toxicoses are a large group of mainly acute food diseases of people. The very names “food diseases”, “food toxicoinfections”, “food toxicoses” indicate that the main role in their occurrence is played by food products. The consistency of the meat, the smell, the state of the muscles on the cut, the transparency and aroma of the broth, the pH of the meat of a healthy animal and a sick animal, the calculation of CMAFAnM, the amount of BGCP in 0.1 grams of the test product, the number of Salmonella bacteria in 25 g of the test product were determined. According to the results of the organoleptic examination, a conclusion was made about the freshness of the meat. Meat of cattle and small cattle, classified according to the results of organoleptic evaluation and bacteriological examination as meat of questionable freshness, is subjected to chemical and microscopic analyses. At present, with a variety of producing enterprises, various forms of ownership with a possible violation of technological production modes and violation of sanitary standards, poor-quality meat of cattle and MSS can enter the consumer market, which can become a source of various infectious and invasive diseases. Therefore, the quality expertise of this product group is very important and relevant.