An outbreak of listeriosis occurred in five-week-old lambs in a flock of 200 Dorset ewes and 240 lambs in-wintered. Nine lambs were lost within a period of 10 days. No cases of stillbirth or abortion or cerebral listeriosis occurred in the ewes. Silage had been fed on this farm to both cattle and sheep for 10 years without any previous problems. A description of the outbreak and the findings are reported.

Animals↗

PubMed1983

Outbreak of monensin poisoning in cattle.

Following accidental overdosage with monensin, nine deaths occurred in a batch of 40, four-to-seven-month-old calves. A description of the incident is given including the findings on post mortem examination. Inaccurate on-farm feed mixing can present problems as was highlighted by this outbreak.

Animal Feed↗

PubMed1982

Lead mine waste: hazards to livestock.

Waste from disused lead mines is used for a variety of purposes and has been implicated in outbreaks of lead poisoning in animals. Three outbreaks of lead poisoning, two in cattle and one in farm dogs, occurred in the south of Scotland. In the first outbreak, three housed suckler cows died and two were clinically affected but recovered after treatment. In the second, four heifers died and two recovered after therapy. Blood samples taken from cattle in both outbreaks contained lead in concentrations from 0 . 59 to 2 . 00 ppm (normal blood lead level 0 . 05 to 0 . 25 ppm). Post mortem examinations revealed signs of lead poisoning. Metallic particles in the rumens and abomasums of affected animals suggested mine waste as the source of the lead and subsequently it was found that the material had been used in the construction of a ramp over which silage was pushed (outbreak 1) and to fill potholes on the farm (outbreak 2). Covering the relevant areas with concrete prevented further occurrences. Farm dogs were affected over a period where mine waste was used to resurface a road. Two dogs died, six others showed signs of lead poisoning and others, with no clinical signs, had elevated blood lead levels.

Animals↗

PubMedDate not supplied

Problems with the use of ear tags in cattle.

Explore the source record for details and available documents.

Animal Identification Systems↗