Browsing by Author "Veerakumari, L"
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ArticleItem Open Access Anthelmintic efficacy of Acacia concinna against paramphistomes in naturally infected sheep(2013) Priya, P; Veerakumari, L; Raman, M; TANUVASDiseases caused by helminth parasites in livestock continue to be a major productivity constraint, especially in small ruminants in the tropics and subtropics. Infections by paramphistomes are one of the most common and economically important diseases of grazing livestock. Anthelmintic resistance to chemotherapeutics is widespread and a serious threat to effective control of helminth infections. Therefore, phytomedicine with anti-parasitic properties offer an effective alternative. The present study was conducted to assess the anthelmintic effect of the aqueous extract of pods of Acacia concinna (AcPE) at various concentrations (5, 10 and 20 mg ml 1) against paramphistome infection in sheep. Eggs per gram (EPG) count and haemobiochemical parameters of sheep treated with A. concinna were investigated. In AcPE-treated sheep, the egg counts reduced significantly on day 7 post-treatment and continued to decrease further, till the end of the experimental period, i.e. day 21 posttreatment. The degree of reduction in EPG counts following oral administration with AcPE was proportional to dosage and duration after treatment. The maximum reduction (97.41%) was observed on day 21 after treatment with 20 mg ml 1 extract. The haematological and biochemical profiles of paramphistome-infected sheep revealed anaemia and hypoproteinemia. Restoration of normal haematobiochemical profile was observed in sheep after treatment with AcPE.ArticleItem Open Access Preliminary Genetic Diversity Study on Different Isolates of Eimeria tenella from South India(2014) Thenmozhi, V; Veerakumari, L; Raman, M; TANUVASCoccidiosis is an intestinal disease of chickens caused by more than six species of the protozoan parasites of the Genus Eimeria and has a major economic impact on the poultry industry throughout the world. Various studies revealed that the diversity of the parasites results in the pathogenicity and in the host pathogen relationship. So, in the present study we analyzed the genetic diversity of Eimeria tenella using the small subunit of 18S rRNA from different poultry managements of South India. About 23 variations were observed among the four isolates of Eimeria tenella with the similarity ranged from 99.3%–95.6% and 28–39 variations observed when compared the four isolates with the reference sequences obtained from the public domain. More than 90% of the similarity was observed between the study and the reference sequences. A mean distance of 0.03 was observed between the E. tenella isolates.ArticleItem Open Access Preliminary Genetic Diversity Study on Different Isolates of Eimeria tenella from South India(Cloud Publications, 2014-09) Thenmozhi, V; Veerakumari, L; Raman, M; TANUVASCoccidiosis is an intestinal disease of chickens caused by more than six species of the protozoan parasites of the Genus Eimeria and has a major economic impact on the poultry industry throughout the world. Various studies revealed that the diversity of the parasites results in the pathogenicity and in the host pathogen relationship. So, in the present study we analyzed the genetic diversity of Eimeria tenella using the small subunit of 18S rRNA from different poultry managements of South India. About 23 variations were observed among the four isolates of Eimeria tenella with the similarity ranged from 99.3%–95.6% and 28–39 variations observed when compared the four isolates with the reference sequences obtained from the public domain. More than 90% of the similarity was observed between the study and the reference sequences. A mean distance of 0.03 was observed between the E. tenella isolates.