Vеterinary and sanitary assessment of meat of foals of the Oymyakonsky region of Sakha (Yakutia) Republic at helminthoses

Abstract

This article presents data on the spread of horse helminth infestations in the Oymyakonsky region, postmortem examination of carcasses and organs of foals, as well as organoleptic, physical and chemical, microbiological studies of meat of foals slightly and strongly infested with helminths in a comparative aspect. According to the results of organoleptic studies of meat from weakly invaded foals meet the requirements of GOST -7269-79, GOST 32225-2013 and can be consumed as food without restrictions. Meat from heavily invaded animals differs from weakly invaded animals in organoleptic indicators. The meat has a red crust of dried carcass, folded, slightly moist, the muscles on the cut are moist, but don't leave a damp spot on the filter paper, expressed red color. The consistency of the muscle is tight, elastic, the dimple formed by pressing with the finger is slowly smoothed out. The smell of the meat is peculiar to that of foals. The fat is soft, slightly sticky and yellowish. The broth is cloudy, with flakes. Physico-chemical investigations showed that meat samples from weakly invaded foals meet the requirements of normative documents GOST R-51478-99, GOST-23392-78. During the comparative evaluation of the meat of weakly invaded and heavily invaded, the following indicators were established: peroxidase reaction - "positive", aminoammonia nitrogen content - 0.84, pH - 5.8. When adding copper sulfate solution to the broth under study, insignificant flakes appeared, while maintaining broth transparency - the reaction is "doubtful". In heavily invaded foals, meat quality does not meet GOST: peroxidase reaction is "negative", reaction with copper sulfate is dubious, meat broth is turbid, with flakes; aminoammoniacal nitrogen content is 1.4, pH - 6.2. The results of microbiological investigations of the meat of weakly invaded foals meet the requirements of normative documents GOST-32031-2012, GOST-10444.15-94. Detected in the meat of heavily invaded foals BSCP (coliforms), KMAFANM (coliforms) - 8*103, indicating that the meat obtained from heavily invaded foals on microbiological indicators, the established standards do not correspond. Consequently, the indicators of meat of weakly invaded foals correspond to fresh, good-quality meat, and the meat of heavily invaded foals is recommended for use in food after industrial processing.