First of all, a high-quality vaccine can only play a role in chicks or chicken embryos and generate sufficient immunity if it is located in a clean environment and provided with sufficient dosage for precise immunization.
Secondly, when vaccinating chickens, choosing an advanced injection equipment is the key.
French Shihua's Desvac Automatic Muscle Injector can accurately inject the pectoral muscle for laying hens and breeders. It is designed for single-needle or double-needle injection for chickens of 12- 19 weeks old, which can significantly reduce the risk of accidental needle stab injury and ensure that those chickens can inject correctly.