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Transmission of virulent footrot between sheep and goats
Author(s) -
GHIMIRE SC,
EGERTON JR,
DHUNGYEL OP
Publication year - 1999
Publication title -
australian veterinary journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.382
H-Index - 59
eISSN - 1751-0813
pISSN - 0005-0423
DOI - 10.1111/j.1751-0813.1999.tb12091.x
Subject(s) - virulence , transmission (telecommunications) , biology , veterinary medicine , virology , medicine , telecommunications , computer science , genetics , gene
Objective To determine the infectivity of ovine and caprine strains of Dichelobacter nodosus for both sheep and goats. Design Pen experiments in which 20 sheep and 19 goats were challenged directly with the two strains, and trans mission experiments on pasture, using donors infected by experimental challenge. Results Sheep and goat strains of D nodosus infected both animal species in ex perimental challenges. Animals so infected transmitted footrot to both sheep and goats on pasture plots. A significantly smaller proportion of goats than sheep was infected when challenged with either strain. The interval between exposure and development of footrot in goats was longer than in sheep when recipient animals were exposed to infected donors on pasture. The disease was less invasive in goats than in sheep. Conclusions With the strains of D nodosus used there was no evidence of host specificity. Direct transmission of footrot can occur between sheep and goats in the same environment. There is a need to include goats in ovine footrot eradication programs and vice versa