共 5 条
[1]
ESCH J, 1987, USE PROVING RINGS ME
[2]
FEDDES JJR, 1988, T ASAE, V31, P1203
[3]
FEDDES JJR, 1983, CAN AGR ENG, V25, P175
[4]
Savory C. J., 1979, Food intake regulation in poultry, P277
[5]
STATGRAPHICS, 1987, STATISTICAL GRAPHICS, P13