A preliminary survey of Sarcocystis species in the slaughtered cattle in Seoul was undertaken during October through December 1987, using digestion diagnostic technique for the heart muscle specimens digested in 0.5 % trypsin solution. Results indicated that 41.5 % of 159 bovine hearts were infected with Sarcocystis proliferative forms. High frequencies in the exotic dairy cattle (42.2%) and the Korean native cattle (41.7%) were noticed in comparison with low frequency in the cross breed (25.0%). No differences were indicated between the sexes of the host animals, although an age difference was noticed as 48.9 % in cattle older than four years in comparison with 39.0 % and 37.1 % in younger than two years and in two to four years, respectively

For the laboratory diagnosis of Sarcocystis infections especially in domesticated food animals, several antificial digestion techniques were applied for the musculature specimens and several staining techniques wes applied for the bradyzoites of Sarcocystis species isolated. The digestion technique using trypsin (0.5%) and sodium chloride (0.85%) mixed solution was regarded as the most valuable for the detection of asexual stages of Sarcocystis in bovine musculature specimens. Optimal time for digestion was approximately one to four hours. The trypsin digestion technique with Giemsa's stain could be helpful for the detection of Sarcocystis proliferative forms and for the observation of the nucleus of the parasite. A systematic detection was also performed in an autopsy for a bovine carcass naturally infected with Sarcocystis species, and the asexual stages such as metrocytes and bradyzoites were observed in the specific organs, respectively

Analysis of veterinary and sanitary examination and quality of cattle slaughter products after cattle clamidiosis was realized in the conditions of the Republic of Belarus from April, 2004 till January, 2006. Over all these research periods there were studied 1579 cattle heads and their slaughter products. The usual salting of meat and other products with the purpose of their clearing from chlamydiosis was unsuitable for practical application. Due to long-term (1,5-9 months) persistence of chlamydia in parenchymal organs for the prevention of people infection and chlamydiosis spreading it is necessary to realize slaughter of diseased animals at a diseased animal slaughter house or in a killing department at the end of working shift with observance of measures of individual preventive maintenance and the subsequent disinfection of a premise, the equipment, stock and tools.

Investigation of histomorphological characteristics, organoleptic and physicochemical parameters of sheep meat and slaughter products, their biological value and bacterial number was realized in the conditions of the Republic of Belarus. Research results established that administration of liquid extract of common St.-John's wort (Hypericum perforatum) made it possible to obtain the substantial degree of sheep carcass bleeding, as well as the formation of a drying crust on a carcass surface. At a cut there was revealed the firm texture meat of light red or red color. Cut surface was wet and had specific flavour for the observed type of meat. Fat was solid, white or with yellow colour tone; tendons were elastic and solid. Analysis of boiled meat of sheep which were administrated by amber liquid essence showed that the cooking water was clear, without foreign odor. Meat of sheep, which were administrated by 2,5 % albazen suspension and were killed at 2 and 7 investigation days, had light medical odor in cooking water. In control variants the organoleptic parameters of sheep carcasses corresponded to fresh meat parameters of healthy animals. Realized physical-chemical analysis established the positive qualitative reaction to activity of peroxydase ferment in all meat samples, as well as the negative reaction to determination of primary protein breakdown products. Organoleptic and physical-chemical parameters of sheep meat after administration of amber liquid essence did not have any differences from animal meat of the control group

In the conditions of the Republic of Belarus there were determined the fattening and slaughter qualities of swine as well as the evaluation of their pork production in the conditions of inclusion into their diets of a biologically active substance on the basis of field caraway (Carum carvi L.). Research results showed that in the production conditions the administration of the biologically active additive in a dose of 7 gram per 100 kilogram of live weight of pigs made it possible to increase their daily average gain from 627,9 grams in a control group up to 687,2 grams (or on 9,44% (P less than 0,999)), to increase their preslaughter and slaughter weight respectively on 3,76% and 6,42%, dressing percentage and carcass yield – respectively on 1,71 and 1,67%. According to the indexes of meat quantity in diverting weirs of the experimental pigs surpassed the control group on 3,03%, or 2,70 kg. The fat content in the half carcasses of the experimental group was authentically lower than the indices of control animals on 0,48 kg or on 2,18%. The hock weight of experimental animals with high confidence exceeded pigs of the control group on 1,15 kg, or on 10,45%. They practically did not differ from the control group according the indexes of thickness of pork fat at the level of 6-7 chest vertebras, and in the area of a muscular eye surpassed them on 4,0 square сm or on 7,72%.

There were studied the veterinary-sanitary indicators of sheep slaughter products in the conditions of application of microcelements in various forms. Studying of the influence chelate forms of microelements on quality of cattle-breeding production is spent in comparison with preparations in which microelements are in a kind of salts. As a model preparation, for studying of chelate influence on quality of cattle-breeding production used of the chelate zinc form - Tsinkovet. Results of research show, that use of chelate and inorganic forms of zinc does not reduce high quality of received production. Meat of sheep of trial groups on organoleptic, bacteriological and physical and chemical indicators, and also biological value and harmlessness is characterized as good-quality and corresponds to veterinary-sanitary requirements. In tables results of physical and chemical researchs of meat, its biological value and harmlessness are presented. | Целью исследований явилось изучение ветеринарно-санитарных показателей продуктов убоя овец при назначении им микроэлементов в различных формах. Изучение влияния хелатных форм микроэлементов на качество животноводческой продукции проведено в сравнении с препаратами, в которых микроэлементы находятся в виде солей. В качестве модельного препарата, для изучения влияния хелатов на качество животноводческой продукции использовали хелатную форму цинка - Цинковет. Результаты исследований показывают, что использование хелатных и неорганических форм цинка не снижает доброкачественности получаемой продукции. Мясо овец опытных групп по органолептическим, бактериологическим и физико-химическим показателям, а также биологической ценности и безвредности характеризуется как доброкачественное и соответствует ветеринарно-санитарным требованиям. В таблицах представлены результаты физико-химических исследований мяса, его биологическая ценность и безвредность.