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The aim of this study was to compare the immunostimulatory properties of Lkt of M. haemolytica inactivated by formaldehyde and glutaraldehyde and to evaluate the neutralizing properties of anti-Lkt antibodies. The experiment was conducted on 20 Black-and-White Lowland calves of 100 kg body weight, assigned to 4 experimental groups. The animals were given subcutaneous vaccine injections with native...
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