Summary: In tracing the source of an outbreak of foodpoisoning with Salmonella virchow a chicken-packing station and associated rearing farms were investigated. The serotype was found in chickens in 9 of the 14 rearing farms investigated and in the hatchery, but not in the breeding flocks supplying the hatchery. Several personnel on the farms were affected. The infection was most likely to have been introduced by contaminated feedingstuffs.

No abstract

No abstract

No abstract

(1) Two trials on the effect of copper glycine injections on the live-weight gains of suckling beef calves under commercial conditions are described.(2) One injection supplying 120 mg. of copper increased live-weight gains by approximately 10% during the suckling and grazing period. A second injection given two months after the first gave a further positive but not statistically significant response.