Post-shearing management affects the seroincidence of Corynebacterium pseudotuberculosis infection in sheep flocks

被引:13
作者
Paton, M [1 ]
Rose, I [1 ]
Hart, R [1 ]
Sutherland, S [1 ]
Mercy, A [1 ]
Ellis, T [1 ]
机构
[1] WESTERN AUSTRALIA DEPT AGR,ANIM IND DIV,S PERTH,WA 6151,AUSTRALIA
关键词
shearing; seroincidence; Corynebacterium pseudotuberculosis;
D O I
10.1016/0167-5877(95)00544-7
中图分类号
S85 [动物医学(兽医学)];
学科分类号
0906 ;
摘要
Associations between the incidence of caseous lymphadenitis (CLA) in sheep and post-shearing management and environmental factors were examined in a prospective study. CLA incidence was measured in 126 groups of 1- and 2-year-old sheep in 70 Western Australian Becks selected from the prevalence of cull-for-age ewes with CLA lesions at abattoirs. CLA incidence was assessed using a CLA toxin ELISA. Dichotomous and polychotomous stepwise logistic regression methods were compared in examining the effects of management and environment on CLA incidence. Shower dipping sheep for ectoparasite control after shearing increased the odds of high CLA incidence by five to six times and keeping sheep under cover for 1 h or more after shearing increased the odds of being in high CLA incidence categories three-fold. The seroprevalence of existing CLA infection within each age group affected incidence more than did the overall slaughter-based flock estimate. This suggests that CLA spreads mostly within groups of sheep shorn together.
引用
收藏
页码:275 / 284
页数:10
相关论文
共 11 条
  • [1] BATEY RG, 1986, AM J VET RES, V47, P482
  • [2] THE ROLE OF CORYNEBACTERIUM-PSEUDOTUBERCULOSIS LUNG LESIONS IN THE TRANSMISSION OF THIS BACTERIUM TO OTHER SHEEP
    ELLIS, TM
    SUTHERLAND, SS
    WILKINSON, FC
    MERCY, AR
    PATON, MW
    [J]. AUSTRALIAN VETERINARY JOURNAL, 1987, 64 (09) : 261 - 263
  • [3] CORYNEBACTERIUM-PSEUDOTUBERCULOSIS INFECTION OF SHEEP - ROLE OF SKIN-LESIONS AND DIPPING FLUIDS
    NAIRN, ME
    ROBERTSON, JP
    [J]. AUSTRALIAN VETERINARY JOURNAL, 1974, 50 (12) : 537 - 542
  • [4] THE SPREAD OF CORYNEBACTERIUM-PSEUDOTUBERCULOSIS INFECTION TO UNVACCINATED AND VACCINATED SHEEP
    PATON, MW
    SUTHERLAND, SS
    ROSE, IR
    HART, RA
    MERCY, AR
    ELLIS, TM
    [J]. AUSTRALIAN VETERINARY JOURNAL, 1995, 72 (07) : 266 - 269
  • [5] NEW INFECTION WITH CORYNEBACTERIUM-PSEUDOTUBERCULOSIS REDUCES WOOL PRODUCTION
    PATON, MW
    ROSE, IR
    HART, RA
    SUTHERLAND, SS
    MERCY, AR
    ELLIS, TM
    DHALIWAL, JA
    [J]. AUSTRALIAN VETERINARY JOURNAL, 1994, 71 (02) : 47 - 49
  • [6] PATON MW, 1995, P AUSTR SHEEP VET SO, P63
  • [7] PATON MW, 1988, ACTA VET SCAND S, V84, P101
  • [8] PATON MW, 1994, P AUSTR SHEEP VET SO, P34
  • [9] PATON MW, 1992, DECREASING PREVALENC, P2
  • [10] PLANT JW, 1993, P AUSTR SHEEP VET SO, P107