DISTRIBUTION OF HYDATID CYSTS IN SHEEP AND ITS INFLUENCE ON THE SAFETY AND NUTRITIONAL CHARACTERISTICS OF MUTTON
Keywords:
echinococcosis, mutton, hydatid cysts, parasitic disease, nutritional value, pathomorphology changesAbstract
Echinococcosis is one of the most widespread zoonotic diseases affecting sheep husbandry in Kazakhstan and poses significant veterinary, public health, and economic challenges. The aim of this study was to determine the localization of echinococcal cysts in sheep and to assess the impact of echinococcosis on the physicochemical and nutritional properties of mutton.
The research was conducted in 2024 in Abay region and included 269 slaughtered sheep. Postmortem examination and laboratory analyses were performed in accordance with GOST standards to determine the chemical composition of meat, as well as mineral and vitamin levels. Statistical evaluation was carried out using ANOVA with a significance level of p<0.05.
The results showed that 64.8% of cysts were localized only in the liver, while 31.5% were detected in both the liver and lungs. Histopathological changes, particularly in the liver and lungs, included fibrosis, inflammatory infiltrates, and tissue atrophy. Infected sheep exhibited higher tissue moisture and reduced levels of protein, fat, essential minerals, and vitamins A, E, B1, B2, and PP, indicating significant metabolic disturbances and reduced nutritional and technological quality of the meat.
Echinococcosis markedly reduces the quality of mutton and causes economic losses in sheep production. Strengthening veterinary control, ensuring regular deworming of dogs, and implementing integrated measures within the “One Health” framework are essential to reducing disease prevalence.
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