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G W Boylen

Publications and source records attributed to G W Boylen.

5 recordsLinked to original sources
PubMed1978

Analysis of lead in animal feed ingredients.

Analyses for lead content were done on 124 specific feed ingredients from 5 major pet food companies. The lead content of the different ingredients varied from 0.1 parts per million (ppm) to 3,600 ppm. Of the samples 48 (39%) had greater than 1 ppm lead. In particular, one type of ingredient (mineral mix) was contaminated with large amounts of this element. Feeds that contain a marked amount of lead could add an uncontrolled variable to experiments using laboratory animals and could cause misinterpretation of experimental results.

Animal Feed↗
PubMed1976

Lead in animal foods.

Analyses for lead content were carried out on 78 random samples of pet food (purchased in local grocery outlets) and on 25 individual rations for laboratory animals. The lead content of 46 samples of cat food ranged from 0.1 to 7.6 mug/g, 32 dog foods ranged from 0.1 to 3.4 mug/g, and 25 laboratory animal feeds ranged from 0.1 t0 4.0 mug/g. Foods that contain a significant amount of lead could add an uncontrolled variable to experiments using laboratory animals and may cause misinterpretation of experimental results.

Animal Feed↗