A previous study indicated that CP levels (15%, 16.5%, and 18%) affected the EM of White Leghorn layers; as the CP level increased, the EM increased significantly in 21 to 32 weeks and had an increasing trend in 33 to 52 weeks [ 16 ].
← all excerpts
Effects of dietary metabolizable energy and crude protein levels on laying performance, egg quality and fecal microbiota of Taihe Silky Fowl during the peak laying period.
1
—
—