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The virulence of Brucella abortus isolated from cattle in Korea
2011
Lim, J.J., Gyeongsang National University, Jinju, Republic of Korea | Kim, J.H., Northern Branch, Gyeongbuk Veterinary Service Laboratory, Andong, Republic of Korea | Kim, D.H., Gyeongsang National University, Jinju, Republic of Korea | Lee, J.J., Gyeongsang National University, Jinju, Republic of Korea | Kim, D.G., Gyeongsang National University, Jinju, Republic of Korea | Jun, M.H., Chungnam National University, Daejeon, Republic of Korea | Kim, S.H., Chungnam National University, Daejeon, Republic of Korea | Chang, H.H., Gyeongsang National University, Jinju, Republic of Korea | Lee, H.J., Gyeongsang National University, Jinju, Republic of Korea | Min, W.G., Gyeongsang National University, Jinju, Republic of Korea | Kim, S., Gyeongsang National University, Jinju, Republic of Korea
In this study, we isolated 12 of Brucella (B.) spp. from cattle, which have been positive in Rose Bangal test and tube agglutination test in Gyeongbuk province in 2009. According to AMOS PCR analysis, isolated 12 strains were identified as B. abortus. Murine derived macrophage, RAW 264.7 cells, were infected with isolated 12 strains or reference strain (B. abortus 544), and bacterial internalization were characterized. According to these results, we divided the isolated strains into the following three groups: class Ⅰ, lower internalization than that of B. abortus 544; class Ⅱ, similar internalization to that of that of B. abortus 544; class Ⅲ, higher internalization than that of B. abortus 544 within RAW 264.7 cells. Furthermore, intracellular growth, bacterial adherent assay, LAMP-1 colocalization, virulence in mice and surface protein pattern were characterized. From these results, representative strains of class Ⅲ showed lower LAMP-1 colocalization, higher adherent efficiency, higher virulence in mice than those of B. abortus 544, and showed different pattern of surface proteins. These results suggest that B. abortus field strains, isolated from cattle in Korea, possess various virulence properties and higher internalization ability of field strain may have an important role for its virulence expression.
Afficher plus [+] Moins [-]Prevalence and management of ovulatory disturbances in cross-bred cattle.
2011
Bhattacharyya, H. K. | Khan, M. Z. | Bhatt, F. A.
Prevalence and management of ovulatory disturbances was recorded from 454 repeat breeding crossbred Jersey cattle of Kashmir valley during a 7 years period (2004-05 to 2010-11). Prevalence of anovulation and delayed ovulation was recorded 16.30 and 12.78% with an overall prevalence of 29.07% ovulatory disturbances. Anovulatory animals treated with RCG (Chorulon @ 1500 to 3000 IV i.v. per animal depending on body weight) showed conception rate (CR) of 86.36%; while those treated with Buserelin (Receptal @ 5ml Lv. per animal) as 100.00%, although this difference was statistically non-significant. Animals suffering from delayed ovulation inseminated twice, thrice or 4th times depending on the persistence of estrus signs showed overall CR of 87.93%.
Afficher plus [+] Moins [-]Distribution pattern of reproductive disorders in bovines- Clinical report.
2011
Singh, Gyan | Chander; Suresh | Pandey, A.K. | Dutt, Ravi
The present report was based on analysis of 410 cases (300 buffaloes and 110cattle) of reproductive disorders. Buffaloes (300 cases) constituted the major number of the total cases followed by cows (110 cases). Dystocia cases were the major obstetrical problem in buffaloes and cattle constituted 77 and 40 per cent, respectively.
Afficher plus [+] Moins [-]Clinico-biochemical studies on lantana toxicosis in cattle.
2011
Sharma Jayata, | Wadhwa, D. R.
Clinico-therapeutic studies were made on thirty clinical cases of lantana toxicity in cattle. The affected animals showed anorexia, constipation, icteric mucous membranes, lachrymation, oligurea,cracks on muzzle, dehydration and rumen stasis. Biochemical analysis revealed that 61.53 % of early presented cases and 100 % of late presented cases were having biphasic Vanden Bergh reaction. Hypoglycemia and increased total protein level were present in late presented cases. Markedly elevated values of total bilirubin, BUN, AST and alkaline phosphatase in both the early and late cases of lantana toxicity indicated hepatic and renal dysfunction.
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