共 18 条
- [1] BARR AJ, 1976, USERS GUIDE SAS
- [4] CLAPP H, 1937, P AM SOC ANIM PROD, V37, P259
- [5] ELLIOTT GM, 1959, DAIRY SCI ABSTR, V22, P481
- [6] FLATT WP, 1965, J DAIRY SCI, V48, P797
- [7] Flatt WP., 1969, EAAP PUBLICATION, V12, P235
- [8] GOFF KR, 1977, P M NE AM SOC ANIM S
- [9] HANSON A, 1947, ACTA AGR SUEC, V2, P211
- [10] CHANGES IN MILK PRODUCTION WITH AGE AND MILKING FREQUENCY [J]. JOURNAL OF DAIRY SCIENCE, 1950, 33 (05) : 338 - 357