The present study was envisaged to evaluate the efficacy of ethno-medicinal plant aqueous extracts such as Allium sativum, Lawsonia inermis, and Opuntia ficus indica in vitro in comparison with the chemotherapeutic agent, Oxyclozanide on Fasciola gigantica adults. The efficacy was evaluated by gross visual motility and mortality of F. gigantica with score index, light microscopic examination of carmine stained flukes and histopathology of treated flukes. Based on the in vitro trials conducted using above plant extracts at 1 percent, 2.5 percent and 5 percent concentration, the extracts of O. ficus indica showed flukicidal effect at 2.5 and 5% concentration. However A. sativum and L. inermis were effective at 5% concentration only. The study indicated the potential for developing herbal-based anthelmintics to control F. gigantica in livestock.
The objectives of the present study were to report the influence of factors like age, sex, breed, dung consistency and rearing system on prevalence of Cryptosporidium spp. in south Indian cattle. Two-step nested PCR was employed for detection of Cryptosporidium infection in dairy calves of south Indian states viz., Andhra Pradesh, Karnataka, Kerala, Tamil Nadu and union territory i.e., Puducherry. A total of 459 dung samples from the calves were subjected to nested PCR, 182 were found positive with prevalence percent of 39.65. Age wise comparison showed a high prevalence of Cryptosporidium in the age group of one month old calves. This concludes that the cryptosporidiosis is highly age dependent with young calves showed the highest prevalence. Depending on the group had consistency of dung, the highest prevalence of Cryptosporidium was observed in semi-solid dung, followed by formed and the diarrhoeic group animals. Female calves showed slightly higher prevalence rate than male animals. Cow calves had an overall prevalence percent of 40.75 and the infection rate in buffalo calves was 36.28 %. In relation to rearing system, individual animals had 42.18 % and farm animals showed 38.46 % of Cryptosporidium infection. In conclusion, the prevalence of Cryptosporidium in dairy calves should be correlated with the factors like age, sex, breed, dung consistency and rearing system of the animal to arrive at a reliable epidemiological data on bovine cryptosporidiosis.
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