共 16 条
[1]
EFFECTS OF DAYS-OPEN ON MILK-YIELD AND ON BREEDING POLICY POSTPARTUM
[J].
ANIMAL PRODUCTION,
1979, 29 (AUG)
:109-119
[4]
FREEMAN AE, 1986, 3RD WORLD C GEN APPL, V11, P3
[5]
Fuller W.A., 1974, J ECONOMETRICS, V2, P67, DOI [10.1016/0304-4076(74)90030-X, DOI 10.1016/0304-4076(74)90030-X.]