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U. S. Livestock Insects Laboratory, Agricultural Research, Science and Education Administration, USDA, Kerrville, TX 78028
Abstract
When four breeds of sheep were dipped in .25% ronnel for control of sheep-biting lice, Bovicola ovis (Schrank), the differences in residues in the fat were highly significant for breed, sex, day x breed and day x sex interactions.
1 This paper reports the results of research only. Mention of a pesticide in this paper does not constitute a recommendation for use by the USDA, nor does it imply registration under FIFRA as amended. Also, mention of a commercial or a proprietary product in this paper does not constitute an endorsement by the USDA.
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