نتایج جستجو برای: clostridium chauvoei
تعداد نتایج: 22134 فیلتر نتایج به سال:
This report aims to facilitate the implementation of the Three Rs (reduction, refinement and replacement) in the testing of vaccines for regulatory and other purposes. The focus is predominantly on identification of reduction and refinement opportunities in batch potency testing but the principles described are widely applicable to other situations that involve experimental infections of animal...
nated in the fall to insure protection during the fall and winter. Some cattle owners in badly infected areas follow the practice of vaccinating every 6 months all animals between the ages of 2 and I o months. A product known as antiblackleg serum is sometimes used for immunizing valuable calves exposed in outbreaks. This product immediately increases the animal's resistance to blackleg, but th...
Experiments were conducted to compare clostridial antibody response of beef heifers that do and do not develop injection-site lesions, evaluate long-term antibody response of a single- and multiple-dose toxoid, and evaluate the ability of a clostridial toxoid to elicit an active antibody response in newborn calves. In Exp. 1, 37 weaned heifers were vaccinated (d 0) with a clostridial vaccine (A...
Clostridial myonecrosis clinically resembling black quarter in an Indian elephant (Elephas maximus).
An Indian elephant (Elephas maximus) which died of acute fatal myonecrosis was examined to determine the aetiology of the infection. The causative organism was identified as Clostridium perfringens type A. Out of five genes encoding for major toxins (cpa, cpb, etx, iA, and cpe genes) the isolate was found to harbour the cpa gene only, as tested by multiplex polymerase chain reaction. It flanks ...
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