Wünsche J, Bock H D, Meinl M
Arch Tierernahr. 1984 Nov;34(11):761-7. doi: 10.1080/17450398409425727.
The crude protein and lysine digestibility values available in literature and ascertained in comparative investigations at the end of the small intestine (distal ileum) and in the complete digestive tract (faeces analysis method) of pigs were subjected to a correlation calculation in order to find out whether and to what degree there are relations between apparent 'ileal' and apparent 'faecal' digestibility. For both crude protein and lysine the relation between ileal and faecal digestibility is so close (r = 0.73 resp. 0.85 ... 0.98) so that for practical purposes it is not necessary to determine the apparent ileal digestibility for each feedstuff by means of the complicated cannula method. This can be calculated with great reliability from the experimentally ascertained apparent faecal digestibility. The differences between faecal and ileal digestibility are smaller for lysine (conversion factors 0.92 ... 0.99) than for crude protein (conversion factors 0.89 ... 0.93).
对文献中可得的、在猪的小肠末端（回肠远端）和整个消化道（粪便分析法）的比较研究中测定的粗蛋白和赖氨酸消化率值进行了相关性计算，以查明表观“回肠”消化率和表观“粪便”消化率之间是否存在关系以及关系程度如何。对于粗蛋白和赖氨酸，回肠消化率与粪便消化率之间的关系都非常密切（r分别为0.73和0.85……0.98），因此出于实际目的，无需通过复杂的插管法为每种饲料测定表观回肠消化率。可以根据实验测定的表观粪便消化率非常可靠地计算出表观回肠消化率。赖氨酸的粪便消化率和回肠消化率之间的差异（换算系数为0.92……0.99）小于粗蛋白（换算系数为0.89……0.93）。
