【摘要】 选择3只带有瘤胃瘘管的成年公狍,测定了2个细度、4种有代表性饲料的瘤胃外流速度(kp值)。试验结果表明:不同种类饲料通过狍瘤胃的速度不同,豆粕、玉米面、柞树叶、玉米青贮瘤胃外流速度分别为0.0340、0.0268、0.0225、0.0218(%/h);不同细度的同一种饲料的瘤胃外流速度也不同,饲料粒度越小,外流速度越快(kp值变大),柞树叶和玉米青贮在粒度为0.25～0.50mm和0.50～1.00mm时,其kp值分别为0.025、0.0172、0.0218、0.0153(%/h)。更多还原

【Abstract】 Outflow of four different feeds in the rumen and each in two different size were stuidied in this experiment with three adult male roe deer fitted with permanent fistulae.The result shows that the type the size of feed influence its outflow.Outlow of soybean meal,corn flour,oak leaves,corn silage are 0.0340, 0.0268,0.0225 and 0.0218(%/h) respectively.And the smaller the feed size is, the faster its outflow is. The outflow of oak leaves in the size of 0.25～0.5mm and 0.5～1.0mm are 0.0225 and 0.0172(%/h) respectively,and thos of corn silage are 0.0218 and 0.0153(%/h) respectively.更多还原