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BOVINE FETAL LUNG DEVELOPMENT

Abstract:

Fetal lung tissue obtained from abattoirs was examined histochemically using alpha-napthyl butyrate (nonspecific method), to defect the presence of pulmonary alveolar macrophages (PAM). Esterasepositive alveolar macrophages, which appear in the alveolar septa and lumina were first seen at 240 days of gestation. These macrophages were identified by the…