Watching Pulpy Kidneys In Lambs
To reduce the incidence of pulpy kidney ir. lambs younger than six weeks, the Department of Agriculture recommends vaccinating of the ewes before they lamb. If ewefe have never been vaccinated before, the best results are stated to be obtained from two doses of the vaccine given at least one month apart. Ewes which were vaccinated last year require only one vaccination. The last (or the only) vaccination should be given about a fortnight before lambing, and this can be done quite safely if the ewes are handled carefully. Very poor immunity results if the ewes are vaccinated much earlier than this.
If most losses from pulpy kidney occur in lambs older than six weeks the Department regards vaccination of ewes as of no value, but vaccination of lambs at marking mayhelp.
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https://paperspast.natlib.govt.nz/newspapers/BPB19500626.2.27
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Bay of Plenty Beacon, Volume 15, Issue 61, 26 June 1950, Page 5
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137Watching Pulpy Kidneys In Lambs Bay of Plenty Beacon, Volume 15, Issue 61, 26 June 1950, Page 5
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