共 9 条
[2]
COPENHAVER JS, 1964, J ANIM SCI, V23, P302
[3]
GARDNER AW, 1955, J ANIM SCI
[4]
HUNTER GL, 1967, J REPROD FERTIL, V14, P473, DOI 10.1530/jrf.0.0140473
[5]
KIRILLOV V, 1944, SOVHOZ PROIZVOD, V12, P34
[6]
MALLAMPATI RS, 1971, J ANIM SCI, V32, P673
[7]
Snedecor G.W. Cochran., 1968, STAT METHODS, V7th
[8]
TORELL DT, 1956, WEST SEC AM SOC ANIM, V7, P1
[9]
WHITEMAN JV, 1972, J ANIM SCI, V35, P836