共 33 条
[1]
Clark LK(1991)Investigating the transmission of Mycoplasma hyopneumoniae in a swine herd with enzootic pneumonia Vet Med 5 543-550
[2]
Armstrong CH(1990)Host determinants of pneumonia in slaughter weight swine Am J Vet Res 51 1306-1311
[3]
Freeman MJ(1985)Apparent reinfection of enzootic-pneumonia-free pig herds: Search for possible causes Vet Rec 116 690-694
[4]
Scheidt AB(1997)A GIS-based computer program for the region-wide eradication of Enzootic Pneumonia (EP) Epidémiologie et Santé Animale VIII ISVEE Paris 31–32 12.13.1-12.13.2
[5]
Sands-Freeman L(2001)Regional eradication of Mycoplasma hyopneumoniae from pig herds and documentation of freedom of the disease Acta vet scand 42 355-364
[6]
Knox K(1990)Serum antibody response to Mycoplasma hyopneumoniae measured by enzyme-linked immunosorbent assay after experimental and natural infection of pigs Aust Vet J 67 39-42
[7]
Gardner IA(1992)Risk factors for the reinfection of specific pathogen-free pig breeding herds with enzootic pneumonia Vet Rec 131 532-535
[8]
Hird DW(2000)Epidemiological investigation of the influence of environmental risk factors on respiratory diseases in swine – a literature review Vet J 159 37-56
[9]
Goodwin RFW(1992)The Cox regression model applied to risk factor analysis of infections in the breeding and multiplying herds in the Danish SPF system Prev Vet Med 12 287-297
[10]
Laube P(1990)Experiences of the eradication program of the Swiss Pig Health Service Tierärztl Umsch 45 556, 559-562