共 9 条
[1]
BIBBY K, 1976, POULTRY ENV HANDOUT
[2]
CHARLES DR, 1977, GLEADTHORPE EHF POUL, P18
[3]
CHARLES DR, 1976, AGRICULTURAL DEVELOP, P39
[4]
Emmans GC, 1977, NUTR CLIMATIC ENV, P31
[5]
GENTLE MJ, 1981, APPLIED ANIMAL ETHOL
[6]
HILL JA, 1980, GLEADTHORPE EXPT HUS, V7, P46
[9]
TAUSON R, 1978, 64 SWED U AGR SCI RE