ABSTRACTS
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Rinderpest in Goats in Nigeria.—W. G. BEATON, M. R. C. V. S.
The following summary of an article on " Rinderpest in Goats in Nigeria ", by W. G.
Beaton, M. R. C. V. S., Research Officer, Veterinary Laboratory, Vom, N. Nigeria,
published in the Journal of Comparative Pathology and Therapeutics, Vol. XLIII, Part 4,
December, 1930, pp. 301-307, I think, is of great practical interest to those engaged on
rinderpest control in India :—
SUMMARY.
1. Rinderpest in Nigeria has been studied with a view to differentiating the lung lesion in this
condition from other specific pneumonias.
2. It has been shown that:—
(a) Goats may be infected with Rinderpest by inoculation with bovine virulent blood.
(b) Goat virulent blood produces Rinderpest in bovines and other goats.
(c) Goats may be infected by contact with reacting goats.
(d) Goats and bovines may be infected by goat blood from contact infection.
(e) Goats and bovines may be infected by bovine blood infected with goat strain.
(f) Goats may be infected by contact with infective bovines.
(g) Bovines may be infected by contact with infective goats.
Further work has been done with the double-inoculation of goats with bovine blood and bovine
anti-rinderpest serum, and vaccination with bovine spleen vaccine.
Differentiation of this disease from contagious pleuro-pneumonia, by contact infection of known
Rinderpest immune goats with the latter disease, occupied much time also.
Third of U. S. Practically Free from Bovine Tuberculosis.—(Journal of the
American Veterinary Medical Association, New Series, Vol. 30, No. 5, November 1930.)
More than one-third of all the counties in the United States are now practically free from
bovine tuberculosis, the U. S. Department of Agriculture announced the past month. On October 1,
there were 1,035 counties classified as "modified accredited areas". A high mark in this work was
reached in September, when 24 counties were added to the modified accredited area. These counties
were located in nine states and included a total of 432,163 cattle. Twelve of the counties were in
Ohio, where very rapid progress recently has been made in the campaign.
The Control of Warble Flies in North Wales.—W. MALDWYN DAVIES, B.SC.,
PH.D., Adviser in Agricultural Zoology, University College of North Wales, Bangor.
(Journal of the Ministry of Agriculture, Vol. XXXVII, No. 9, December 1930.)
SUMMARY OF RESULTS.
The bulk of the derris powder sold to farmers in North Wales during 1930 was supplied from
four different sources; powder from these sources was used in the trials along with two proprietary
washes. When it was used as a wash, derris powder from three of the sources proved highly toxic to
warble-fly larvæ under critical, general and ordinary farm conditions. Derris powder from the
remaining source, while yielding a moderately high percentage, kill under the critical tests which
ensured sufficient solution entering each warble hole, failed to produce an effective kill under general
and ordinary farm conditions. The writer is pleased to add that, in the case of the latter powder,
the firm concerned, on being notified of these results, stated that no further supplies would be ob-
tained from that source.
A solution which need only be diluted with water before application has, for obvious reasons,
a distinct advantage over a powder, and it was hoped that a solution which was available would be