| Popis: |
THE poultryman usually believes that most of his problems with unthrifty birds can be explained by either infectious disease or poor nutrition, provided he supplies good stock and good management. This belief is usually justified. However, another factor is taking on importance in this regard. The expanding use of pesticides in field and grain crop cultivation and preservation makes it almost inevitable that certain of these products find their way into feeding channels. The present investigation arose from a situation of this type. Hens on certain Minnesota farms suddenly began laying soft shelled eggs, and after many other possibilities were investigated, it was found that Arasan, a seed protectant, was responsible for the egg production disturbance (Waibel, Pomeroy and Johnson, 1955). The present study was designed to determine the toxicity of tetramethylthiuram disulfide, the active component of Arasan, for chicks, poults, and goslings. Since the present studies were completed, a . . . |
