In nature, wild boars play a key role in the spread of African Swine Fever virus. It is important to take into account the role of different vectors to assess the environmental and epidemiological risks of ASF outbreaks. Insects can only be mechanical, but non-biological carriers of the virus between wild boars and pigs. This transmission is limited in space. Rodents and wild birds are the most likely potential mechanical carriers of the ASF virus, and measures aimed at preventing the illegal disposal of dead pigs and wild boars help to reduce their role in the spread of ASF.
{"title":"THE ROLE OF MECHANICAL VECTORS IN THE SPREAD OF ASF IN THE WILD BOAR POPULATION","authors":"O.A. BUROVA, O.I. ZAKHAROVA, I.V. YASHIN, A.A. BLOKHIN","doi":"10.37925/0039-713x-2023-6-9-13","DOIUrl":"https://doi.org/10.37925/0039-713x-2023-6-9-13","url":null,"abstract":"In nature, wild boars play a key role in the spread of African Swine Fever virus. It is important to take into account the role of different vectors to assess the environmental and epidemiological risks of ASF outbreaks. Insects can only be mechanical, but non-biological carriers of the virus between wild boars and pigs. This transmission is limited in space. Rodents and wild birds are the most likely potential mechanical carriers of the ASF virus, and measures aimed at preventing the illegal disposal of dead pigs and wild boars help to reduce their role in the spread of ASF.","PeriodicalId":471789,"journal":{"name":"Svinovodstvo","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136202092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.37925/0039-713x-2023-6-44-47
T.P. MAXIMOV, A.A. KUDRIASHOV, V.I. BALABANOVA
The aim of the study was to identify pathomorphological changes in combined deoxynivalenol and T-2 toxicosis in piglets of the rearing group. The material of the study was 19 weaned piglets aged 52‒63 days, in which mycotoxicosis was suspected during their lifetime. The material for the study also served as 10 samples of full-grain granular compound feed SK-4 for piglets aged 1.5‒2 months, fed in groups of the studied animals. We conducted a pathoanatomic study using the method of complete evisceration according to G.V. Shor. During the autopsy, liver and kidney samples were taken from piglets for histological examination. The pathological material was fixed in a 10% solution of neutral formalin. Then the filling was carried out in paraffin and sections 5‒7 microns thick were made on a rotary microtome. The sections were stained with hematoxylin and eosin. The quantitative content of mycotoxins in feed samples was determined in the laboratory of biochemical analysis of the Federal Scientific Center All-Russian Scientific Research and Technological Institute of Poultry Farming using the method of high-performance chromatography in tandem with mass spectrometry (HPLC-MS/MS). As a result of the study, the content of T-2 toxin in the concentration from 0.03 to 0.89 mg/kg and the presence of deoxynivalenol (DON) toxin in the concentration from 0.5 to 4.9 mg/kg were found in the feed samples, which significantly exceeded the maximum permissible levels of these mycotoxins in pig feed. At the autopsy, hemorrhages, foci of necrosis and erosion in the skin, anemia, foci of necrosis, erosion, hemorrhages, catarrhal inflammation in the stomach, hemorrhages and inflammation in the intestines, pulmonary edema and acute reactive hepatitis were found in piglets. Histological examination of the liver revealed granular and watery dystrophy, necrosis of hepatocytes, leukocyte infiltration of Disse spaces. In the kidneys - watery dystrophy and necrosis of the epithelial cells of the renal tubules.
{"title":"PATHOMORPHOLOGICAL CHANGES IN PIGLETS AT TRICHOTHECENE MYCOTOXICOSIS","authors":"T.P. MAXIMOV, A.A. KUDRIASHOV, V.I. BALABANOVA","doi":"10.37925/0039-713x-2023-6-44-47","DOIUrl":"https://doi.org/10.37925/0039-713x-2023-6-44-47","url":null,"abstract":"The aim of the study was to identify pathomorphological changes in combined deoxynivalenol and T-2 toxicosis in piglets of the rearing group. The material of the study was 19 weaned piglets aged 52‒63 days, in which mycotoxicosis was suspected during their lifetime. The material for the study also served as 10 samples of full-grain granular compound feed SK-4 for piglets aged 1.5‒2 months, fed in groups of the studied animals. We conducted a pathoanatomic study using the method of complete evisceration according to G.V. Shor. During the autopsy, liver and kidney samples were taken from piglets for histological examination. The pathological material was fixed in a 10% solution of neutral formalin. Then the filling was carried out in paraffin and sections 5‒7 microns thick were made on a rotary microtome. The sections were stained with hematoxylin and eosin. The quantitative content of mycotoxins in feed samples was determined in the laboratory of biochemical analysis of the Federal Scientific Center All-Russian Scientific Research and Technological Institute of Poultry Farming using the method of high-performance chromatography in tandem with mass spectrometry (HPLC-MS/MS). As a result of the study, the content of T-2 toxin in the concentration from 0.03 to 0.89 mg/kg and the presence of deoxynivalenol (DON) toxin in the concentration from 0.5 to 4.9 mg/kg were found in the feed samples, which significantly exceeded the maximum permissible levels of these mycotoxins in pig feed. At the autopsy, hemorrhages, foci of necrosis and erosion in the skin, anemia, foci of necrosis, erosion, hemorrhages, catarrhal inflammation in the stomach, hemorrhages and inflammation in the intestines, pulmonary edema and acute reactive hepatitis were found in piglets. Histological examination of the liver revealed granular and watery dystrophy, necrosis of hepatocytes, leukocyte infiltration of Disse spaces. In the kidneys - watery dystrophy and necrosis of the epithelial cells of the renal tubules.","PeriodicalId":471789,"journal":{"name":"Svinovodstvo","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136202725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.37925/0039-713x-2023-6-22-24
M.A. LEONOVA, S.V. LEONOV
The article presents an analysis of biochemical parameters of blood serum and reveals the relationship of right-sided heart failure with the occurrence of post-mortem meat exudation (PSE). The most indicative markers of cardiopathology are total protein, albumin, glucose, urea, calcium, iron, bilirubin, AST, ALT, lactate, creatinine, sodium, chlorides, potassium, LDH, creatine kinase. As preventive measures, options for correcting the diet and microclimate are given.
{"title":"BIOCHEMICAL MARKERS OF HEART FAILURE IN PIGS AS A SIGN OF EXUDATIVE MEAT (PSE)","authors":"M.A. LEONOVA, S.V. LEONOV","doi":"10.37925/0039-713x-2023-6-22-24","DOIUrl":"https://doi.org/10.37925/0039-713x-2023-6-22-24","url":null,"abstract":"The article presents an analysis of biochemical parameters of blood serum and reveals the relationship of right-sided heart failure with the occurrence of post-mortem meat exudation (PSE). The most indicative markers of cardiopathology are total protein, albumin, glucose, urea, calcium, iron, bilirubin, AST, ALT, lactate, creatinine, sodium, chlorides, potassium, LDH, creatine kinase. As preventive measures, options for correcting the diet and microclimate are given.","PeriodicalId":471789,"journal":{"name":"Svinovodstvo","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136202528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In the production of meat products in modern pig-breeding, in order to increase productivity, special attention is paid to interbreeding and hybridization. This article presents the results of a statistical analysis (genetic and phenotypic correlations) of the amino acid composition determined by the chromatographic method and the total amount of water-soluble antioxidants (TAWSA) determined by amperometric detection in the blood serum of three-breed pig hybrids. The main achievements of the work were correlation calculations and analysis of variance using the RENUMF90, REMLF90 programs, according to (TAWSA) and the main indicators of the amino acid composition of the blood serum of 45 three-breed hybrid pigs.
{"title":"VARIABILITY OF INDICATORS OF AMINO ACID COMPOSITION OF THE BLOOD SERUM OF THREE-BREED HYBRIDS OF PIGS ON THE BASIS OF A LINEAR EQUATION MODEL","authors":"A.F. KONTE, O.A. VORONINA, N.S. KOLESNIK, A.A. SAVINA, S.Yu. ZAITSEV","doi":"10.37925/0039-713x-2023-6-48-52","DOIUrl":"https://doi.org/10.37925/0039-713x-2023-6-48-52","url":null,"abstract":"In the production of meat products in modern pig-breeding, in order to increase productivity, special attention is paid to interbreeding and hybridization. This article presents the results of a statistical analysis (genetic and phenotypic correlations) of the amino acid composition determined by the chromatographic method and the total amount of water-soluble antioxidants (TAWSA) determined by amperometric detection in the blood serum of three-breed pig hybrids. The main achievements of the work were correlation calculations and analysis of variance using the RENUMF90, REMLF90 programs, according to (TAWSA) and the main indicators of the amino acid composition of the blood serum of 45 three-breed hybrid pigs.","PeriodicalId":471789,"journal":{"name":"Svinovodstvo","volume":"137 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136203275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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