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Selection of planting materials

Parasite and Disease Control Practices

Parasites and diseases control is very important in livestock rearing.One of the methods used in their control is vaccination. A vaccine is a preparation of dead or attenuated disease causing organism introduced into animal's body to induce immunity.There are four groups of vaccines. These are:
1. Live virulent vaccines
2. Live attenuated vaccine
3. Killed or dead vaccines
4. Toxoids