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Fig. 5 | BMC Veterinary Research

Fig. 5

From: Strong inflammatory responses and apoptosis in the oviducts of egg-laying hens caused by genotype VIId Newcastle disease virus

Fig. 5

TUNEL staining of the oviduct in NDV-infected hens. Oviduct tissues were collected 5 dpi. The nuclei of oviduct sections from virus-free and NDV-infected hens were stained with Hoechst 33342; a red color indicates the positive staining of apoptotic cells (400×). Oviductal segments from virus-free hens served as the negative control. a Control hens. b Infected hens

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