36 research outputs found
Bovine herpesvirus-1 (BHV-1) - a re-emerging concern in livestock:a revisit to its biology, epidemiology, diagnosis, and prophylaxis
Bovine herpesvirus-1 (BHV-1) is known to cause several diseases worldwide. It is a double-stranded DNA virus consisting of 33 structural proteins out of which 13 are associated with the envelope. Based on genomic analysis and viral peptide patterns, BHV-1 virus can be divided into several subtypes like BHV-1.1, BHV-1.2, and BHV-1.3. However, all subtypes are antigenically similar. The symptoms of the related diseases are mainly non-life-threatening but have a rather wide host range that limits animal trade. The different modes of transmission as unique feature of this virus and the tendency to cause infection in the early age with latency development in trigeminal and sacral ganglion cause huge economic losses around the world. The virus also affects endangered bovine species like mithun (Bos frontalis) and yak (Poephagus grunniens). The disease can be diagnosed by using conventional procedures (like cell culture, immune-histopathology, and enzyme-linked immunosorbent assay (ELISA)) as well as highly sensitive modern techniques (like nested PCR and southern hybridization) with the virus neutralization test regarded as gold standard. With the currently available diagnostic tests it is not possible to identify animals which have a latent BHV-1 infection. Different types of modern and conventional vaccines are available for immunoprophylaxis. Inactivated vaccines are not as efficacious as modified live virus (MLV) vaccines. Marker vaccines allow the distinction between vaccinated and naturally infected animals. In this review the present status of BHV-1 around the world will be addressed besides the current knowledge with regard to its biology, epidemiology, diagnosis, and prophylaxis. </p
Kvercetin potpomaže akaricidnu aktivnost ivermektina u slučaju svinja prirodno oboljelih od sarkoptoze
Sarcoptic mange triggers continuous oxidative onslaughts, resulting in severe oxidative stress in pigs and, to date, no antioxidant has been evaluated for the treatment of naturally infested pigs. This randomized clinical trial aimed to assess the ameliorative potential of the antioxidant quercetin (QR) when integrated with ivermectin (IVM) in the treatment of sarcoptic mange in pigs. The control group (T0 , n=10) consisted of healthy subjects. The first treatment group (T1 , n=10) consisted of infested pigs receiving the standard treatment (subcutaneous IVM only) while the second treatment group (T2 , n=10) consisted of infested pigs receiving integrated treatment (subcutaneous IVM plus oral QR). On day 0, the circulating malondialdehyde (MDA) was significantly higher and superoxide dismutase (SOD), reduced glutathione (GSH), catalase (CAT), total antioxidant capacity (TAC) and antioxidative minerals (zinc, copper, iron) were lower in all infested pigs compared to the healthy subjects. On day 14 post-treatment, maximum recovery was observed in the MDA, SOD, GSH, CAT, TAC, zinc, copper and iron in group T2 and the results returned to normal earlier in group T2 than in T1 . Likewise, more significant improvements in parasitological cure rate, scratching index and skin score were recorded after treatment in group T2 than group T1 . These results suggest the greater effectiveness of IVM plus QR than IVM alone against sarcoptic mange, and quercetin may be recommended as an ancillary therapy with IVM to negate severe oxidative stress, improve post-therapy convalescence and produce a speedy recovery in pigs.Sarkoptoza u svinja pokreće poremećaje koji rezultiraju teškim oksidacijskim stresom za koji još uvijek nije otkriven antioksidans kojim bi se prirodno infestirane svinje tretirale. Cilj je ovog randomiziranog kliničkog istraživanja bio procijeniti antioksidacijski potencijal kvercetina (QR) u kombinaciji s ivermektinom (IVM) u liječenju sarkoptoze u svinja. U kontrolnoj su skupini (T0 , n=10) bile zdrave jedinke. U prvoj su pokusnoj skupini (T1 , n = 10) infestirane svinje dobile standardnu terapiju (samo IVM primijenjen supkutano), dok su infestirane svinje u drugoj pokusnoj skupini (T2 , n = 10) primile integriranu terapiju (supkutano IVM i oralno QR). Nulti dan cirkulacijski je malondialdehid (MDA) bio znakovito veći, dok su superoksidna dismutaza (SOD), reducirani glutation (GSH), katalaza (CAT), ukupan anitoksidacijski kapacitet (TAC) i antioksidacijski minerali (cink, bakar i željezo) bili smanjeni u infestiranih svinja u usporedbi sa zdravim jedinkama. Četrnaesti dan poslije liječenja uočen je maksimalan oporavak u pogledu pokazatelja MDA, SOD, GSH, CAT, TAC, cinka, bakra i željeza u skupini T2 te njihov raniji povratak na uobičajene vrijednosti u skupini T2 u odnosu na skupinu T1. Osim toga, u skupini T2 u odnosu na skupinu T1 zapaženo je znakovito poboljšanje u stopi izliječenosti parazitoze, indeksu grebenja i bodovanju promjena na koži. Ovi rezultati upućuju na veću učinkovitost IVM-a u kombinaciji s QR-om nego IVM-a upotrijebljenog kao samostalna terapija sarkoptoze u svinja. Zaključuje se da bi kvercetin mogao biti dodatna terapija uz IVM kako bi se poništili teški učinci oksidacijskog stresa, poboljšala poslijeterapijska rekonvalescencija i ubrzao oporavak svinja
Ameliorative Activity of Withania somnifera Root Extract on Paraquat-induced Oxidative Stress in Mice
Update on epidemiology and control of Foot and Mouth Disease - A menace to international trade and global animal enterprise
Foot and mouth disease (FMD) is one of the most economically and socially devastating disease affecting animal agriculture throughout the world. This review describes economic impact of disease outbreaks, an update of recent findings in epidemiology of FMD both at International and national level and control of this disease. The etiological agent (FMD virus) is examined in detail at genetic and molecular characterization level and in terms of antigenic diversity. [Vet World 2012; 5(11.000): 694-704
Blood antioxidant profile and lipid peroxides in dairy cows with clinical mastitis
Aim: To evaluate blood antioxidant profile and lipid peroxides in dairy cows with clinical mastitis. Materials and Methods: Twelve cases of clinical mastitis in cross-bred cows were selected based on physical examination of udder and milk, California Mastitis Test (CMT), Somatic Cell Count (SCC) and confirmation by bacteriological examination of milk and requisite biochemical tests. Twelve lactating cows showing negative CMT reaction and SCC <2x105 cells/ml were considered as healthy control. Antioxidant parameters measured in blood were superoxide dismutase (SOD), catalase activities and reduced glutathione (GSH) concentration. Erythrocytic lipid peroxidation (LPO) was measured in terms of malondialdehyde (MDA) production. Results: Significant (P<0.05) decrease in blood SOD and catalase activities, GSH concentration and an increase in erythrocytic lipid peroxides was observed in cows with clinical mastitis. Conclusion: It is concluded that there is a compromise in antioxidant defense of the body in dairy cows with clinical mastitis resulting in oxidative damage, therefore, necessitate the use of antioxidants and other protective compounds along with conventional therapy for mastitis control. [Vet World 2013; 6(5.000): 271-273
