To obviate this the dip is used, and has
come into general use. The animals are collected from afar, and brought
into the corral (a strong enclosure), from which there is a wooden
passage, having many contrivances useful for marking, branding, and
dehorning cattle, all of which are used in their due season; but for
dipping purposes this passage terminates in a precipitous slope, and the
animals are gently forced along it from the corral to plunge suddenly
into a prepared bath of a strong solution, which kills every tick; so it
follows, that if the animal has been totally submerged, it is absolutely
free from the parasite. The object of dipping is to kill all kinds of
insects and parasites which trouble the bovine race; especially so the
common Louse (the Dermatodectis Bovis) which is the scab producer. The
worst pest is, however, the cattle tick or Garrapata, and known under
the scientific name of Boophilus Annulatus.
This latter is the harbinger of the microbe of Texas Fever or Tristeza,
as it is known in the Argentine.
The remedies that are principally employed are of a tarry basis and
prepared so as to be easily mixed with water, usually in the proportion
of 1 to 100.
The amount of mixture used is 2.60 litres, and the cost works out at 10
cents.
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