共 13 条
[1]
ALM CC, 1974, J AM VET MED ASSOC, V165, P721
[2]
ALM CC, 1975, J REPROD FERTIL, P637
[3]
BROST M, 1972, J AM VET MED ASSOC, V160, P321
[4]
Burns S J, 1973, Equine Vet J, V5, P91, DOI 10.1111/j.2042-3306.1973.tb03201.x
[5]
CAMPBELL D L, 1971, Southwestern Veterinarian, V24, P103
[6]
CHIBOKA O, 1976, THESIS U WISCONSIN
[8]
HILLMAN RB, 1975, J REPROD FERTIL, P641
[9]
HOLTAN DW, 1975, J ANIM SCI, V41, P359