共 23 条
[12]
KUIPERS A, 1980, THESIS U WISCONSIN M
[13]
FACTORS AFFECTING CALF LIVABILITY FOR HOLSTEINS
[J].
JOURNAL OF DAIRY SCIENCE,
1983, 66 (11)
:2400-2407
[20]
INCIDENCE AND CONTROL OF MASTITIS DURING DRY PERIOD
[J].
JOURNAL OF DAIRY SCIENCE,
1974, 57 (11)
:1341-1349