Risk factors associated with swine dysentery in East-European pig production units

Autor: Mirko C.P., Bilkei G.
Jazyk: angličtina
Rok vydání: 2005
Předmět:
Zdroj: Veterinarski Glasnik, Vol 59, Iss 3-4, Pp 349-362 (2005)
Druh dokumentu: article
ISSN: 0350-2457
2406-0771
DOI: 10.2298/VETGL0504349M
Popis: The objective of the present study was to determine the risk factors for swine dysentery in East-European middle-size to large farrow to finish units with separate breeding and grower-finisher facilities. Ten breeding animals (3-10% of the female inventory) and 10 grower tinisher pigs (80-140 days-of age) were sampled in each herd for polymerase chain reaction testing (PCR) for Brachyspira hyodysenteriae (B hyo) in their feces. Of 139 farrow to finish units, 51 (36.7%) were positive, 49 (35,3%) were negative, and 39 (28.1%) were inconclusive for B hyo by PCR. In breeding subunits, twelve variables passed the screening criterion for risk factors (P6%. Use of "all in all out" farrowing policy and having >60% multiparous sows, each reduced the odds of being B hyo PCR positive about fourfold. In growing-finishing subunits, fourteen variables passed the screening criterion for risk factors (P
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