Broilers chickens have been blind for 30 days, snuff and die. What is the reason and what should I do? Bilelin feed, added tetravit to food. (Maria)
Maria, the most common phenomenon that causes blindness in broilers - is a sharp shortage of vitamin A. It is enough to miss something in the diet to provoke such a problem. It can help solve the feeding of special vitamin preparations. Not necessarily a special complex, you can take a pure vitamin A (liquid) in a usual pharmacy or finely rub a carrot and flavor with oil.
But I’m worried that the chickens are dying, usually because of a lack of vitamin, they first weaken. This reaction is usually caused by infection. Then without a strong antibiotic can not cope. In general, there are not many infections that affect the eyes. But they all cause additional symptoms, for example, the eyes are swollen, there is a discharge, swelling and so on.
If you have nothing from all of the above, and you do not see any suspicious symptoms, continue to give a dose of available antibiotic (preferably a broad spectrum, like Tetravit) for prevention. And also start vitamin therapy.