Experimental intraocular (conjunctival) infection of exotic cockerels with a new field strain of viscerotropic velogenic Newcastle Disease Virus (NDV) was conducted to explore the concurrence of some pathological changes with humoral immune responses. After the NDV infection of 4-week-old cockerels. pathologic changes and antibody responses were observed. The clinical signs observed a... https://allfixelectricales.shop/product-category/vacuum-powerbrush-kit/