Iowa State University, Ames, Iowa. Faust, M. 1999. Research update on Bt corn silage. Four State Applied Nutrition and Management Conference. Faust, M. and L. Miller.
Study finds no Bt in milk.
Fall Special Livestock Edition. Iowa State University Extension, Ames, Iowa. Felsot, A. S. 2000. From Tight Fit To Uptight. Flachowsky, G. and K. Aulrich.