OCR Text |
Show Phenothiazine-Salt Mixture for Sheep Reduction cf Worms And Heavier Lambs Tests have been carried on for four successive seasons at the Texas Tex-as substation, Sonora, to determine whether continued licking of pheno-thiazine-salt mixtures is toxic to sheep, and also whether this practice prac-tice will control infestations of stomach stom-ach and other roundworms of sheep (without drenching animals individually). individ-ually). The pheno-salt mixture was kept before sheep on pasture all, the time. There were no harmful results; in fact, the lamb crops were 3 per cent heavier than during three previous seasons when salt alone was kept in the troughs. Use of the phenothiazine-salt mixture mix-ture also resulted in reduction and checking of worms. The sheep were heavily infested at the beginning in ewes, 1,180 worm eggs per gram of feces; in lambs, 1,700' eggs per This sturdy baby Southdown will gain by being fed phenothiazine-salt. phenothiazine-salt. ' gram. In the fourth season, the worm egg count was down to 60 for ewes and 30 for lambs. On the strength of these figures, Dr. I. B. Boughton, who did the work, concludes: "The mixture eliminated the need for individual treatment in the control of stomach and other roundworm infestation." Also, he says: "There was no ill effect on the health of either the ewes or the lambs." |