共 22 条
[11]
Nawathe D R, 1992, Rev Sci Tech, V11, P799
[12]
NAWATHE DR, 1995, REV ELEV PAYS TROP, V45, P17
[15]
Nwanta J. N., 1992, Revue d'Elevage et de Medecine Veterinaire des Pays Tropicaux, V45, P17
[16]
*OIE, 1995, REPORTS ANIMAL HLTH, V1, P727
[17]
*OIE, 1996, AN HLTH DIS CONTR ME, P545
[18]
OSIYEMI T I O, 1981, Bulletin of Animal Health and Production in Africa, V29, P95
[19]
Provost A, 1987, REV SCI TECH OIE, V6, P625
[20]
SCUDAMORE JM, 1995, STATE VET J, V5, P13