Amr elmekkawy likes this technical article:
The poultry industry constitutes a significant sector of Egypt agriculture. In Egypt, millions of birds are produced yearly with a value exceeding LE 60 billion. Broiler chickens are the largest segment of the industry. Birds raised under commercial conditions are vulnerable to environmental exposure to a number of diseases. Therefore, disease prevention by vaccination is an important part of floc ...
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December 4, 2017