不同饲养条件下阿尔巴斯绒山羊前胃的形态学变化

The morphological changes of Aerbasi cashmere goats' proventriculus under different raising conditions

用大体解剖学方法,观察了不同饲养条件下,8只8～9月龄阿尔巴斯绒山羊前胃容积和粘膜的形态学变化.结果表明,前胃(瘤胃、网胃、瓣胃)容积(除瓣胃外)表现为青草羊最大,其次为放牧羊,干草羊最小.瘤胃前庭黏膜面及肉柱上均有乳头,游标卡尺测定结果显示,瘤胃胃壁乳头的高度表现为干草羊最高,其次为青草羊,放牧羊最矮;网格数以青草羊最多,放牧羊和干草羊基本相似;瓣胃容积表现为放牧羊最大,其次为干草羊,青草羊最小;瓣胃的大、中、小瓣叶表现为放牧羊最高,其次为青草羊,干草羊最低,并发现其有最小瓣叶.在网瓣口处均有10排纵行的高而锐的乳头,每一排乳头延续形成一个大瓣叶.

This research was designed to investigate the morphological changes of 8-9month Aerbasi goats＇ proventriculus under different raising conditions. The result indicates that the proventricul volume （except for omasum） of the goats fed on green grass is the largest ,that of the goat grazed is the medium and that of the goats fed on hay is the smallest. The height of the rumenal papillae of the goats fed on hay is the highest ,next is that of the goats fed on green grass ,and that of the goats grazed is the shortest. The goats fed on green grass have more cellulae reticuli,and the numbers of celluae reticuli are similar between goats grazed and goats fed on hay. The volume of the omasum is the largest in the goats grazed ,the second in the goats fed on hay,the smallest in the goats fed on green grass. The height of the folds of omasum in the goats grazed is the highest and the goats fed on hay is the lowest.