. Annual report of the North Carolina Agricultural Experiment Station. will pat a mppp nfmeasles, v cell from which worm has escaped SlOnaiiy a pig Will eai, a piece OI —exact size. measly pork, or a rat, or some animal infested by the measle worm, which, then in the intestinesof the pig, developes into the mature form or tape worm. This method of infestation ishowever comparativelyrare. The symptoms of infes-tation are obscure on ac-count of the natural slug-gishness of the pig. Thecysts can generally beseen as whitish or yel-lowish specks on the un-derside of the tongue. Toexamine the tongue
. Annual report of the North Carolina Agricultural Experiment Station. will pat a mppp nfmeasles, v cell from which worm has escaped SlOnaiiy a pig Will eai, a piece OI —exact size. measly pork, or a rat, or some animal infested by the measle worm, which, then in the intestinesof the pig, developes into the mature form or tape worm. This method of infestation ishowever comparativelyrare. The symptoms of infes-tation are obscure on ac-count of the natural slug-gishness of the pig. Thecysts can generally beseen as whitish or yel-lowish specks on the un-derside of the tongue. Toexamine the tongue, catchand throw the pig on itsback. A stout stick ayard long is pushed wellinto the mouth and usedas a lever to keep thejaws open. A towel isthen wrapped around the Fig. 20.—Measle worm—much magnified. A. cell con- Vianrl anrl tViA tnnmip nnll-taining worm; B. head of worm; C. hooks from head; DanCl anQ ine rongue Pun-c. cell; A. htghly magnified and cut away to show worm, ed Out and examined by touch and sight. A hand glass is very useful in this PARASITES OF DOMESTIC ANIMALS. 131 Treatment: Treatment must be wholly preventive, as once en-cysted in the flesh no medicine can reach it during the life of thehost. Pigs should be kept in clean enclosures, away from privies,and night soil should never be deposited upon such fields. Cleanwater, unpolluted by sewage, should be provided them to drink. The encysted worms possess very great vitality and may live fora month after death of the pig. Proper salting of the flesh is, how-ever, destructive to the worms if the salt or brine touches them. It is able to resist a temperature of 120°F., but 123°F. for oneminute is certain to destroy the worm, In cooking large pieces ofpork, however, while the outside may be heated to 212°F., thedeeper parts may be below the required temperature for destroyingthe measle worms which may be therein. A piece of pork not morethan five inches thick may be heated through sufficiently
Size: 1600px × 1562px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectagriculture, bookyear
