共 20 条
[1]
BARFOOT LW, 1971, CANADIAN VET J, V12, P2
[2]
BELLING TH, 1964, VET MED, V59, P369
[3]
BLOOD DC, AUST VET J
[4]
CANNON RM, AUST VET J
[5]
USE OF RECORDS IN MANAGING FOR GOOD LACTATIONAL AND REPRODUCTIVE-PERFORMANCE
[J].
JOURNAL OF DAIRY SCIENCE,
1974, 57 (03)
:377-385
CONLIN, BJ
.
[6]
Esslemont R.J., 1975, MELBREAD DAIRY HERD
[7]
ESSLEMONT RJ, 1975, VET REC, V97, P334
[8]
Francos G, 1974, Dtsch Tierarztl Wochenschr, V81, P135
[9]
HERSCHLER RC, 1964, J AM VET MED ASSOC, V145, P672
[10]
A SURVEY OF INCIDENCE OF REPEAT BREEDER COW IN SWEDEN WITH REFERENCE TO HERD SIZE SEASON AGE AND MILK YIELD
[J].
BRITISH VETERINARY JOURNAL,
1968, 124 (08)
:342-&
HEWETT, CD
.