Gross and histomorphologic study of magnum in adult indigenous chicken (Gallus domestics) of Assam, India.

The study was conducted to elucidate gross and histomorphological structure of magnum in indigenous chicken of Assam. The magnum was abruptly larger and longer than other parts of oviduct and it was most tortuous. The mucosa of magnum was lined by simple columnar ciliated epithelium with primary and secondary folding .The propria-submucosa was packed with long branched coiled tubular glands and it contained large amount of collagen fibres and somewhat less amount of elastic fibres. PAS positive reaction was intense in glands of magnum and the central part of mucosal folds was moderate PAS positive.