No gastric glands were observed until 21 DAH, grouped in acinar structures and distributed along the cardiac and fundic stomach mucosa, which were more numerous in the fundic stomach than in the cardiac region, but never observed in the pyloric region.

• 直到21日龄,才观察到胃腺,呈腺泡状结构沿贲门胃和胃底粘膜分布,其数量在胃底部增多,但在贲门部减少,而在幽门部未见到胃腺。