layer hens

Revisiting infectious bronchitis Variant 2 in layer hens

In issue 77 of ProAgri Zambia, we presented an overview of the signs and lesions of infectious bronchitis Variant 2 (also known as IS/1494/06) in layer hens. This variant was first reported in Zambia in 2017, and Phibro has detected it again in 2022, confirming its circulation in the[...]

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