A farm animal toy (10) including a colored structure (12, 18) suitable for stimulating at least one farm animal characterized in that the color of the colored structure is selected so as to significantly improve at least one measure of the output of at least one farm animal.
申请公布号
WO9302551(A1)
申请公布日期
1993.02.18
申请号
WO1992US06492
申请日期
1992.08.04
申请人
KARASH, MICHAEL, J.;KEREM, ELITAN;CORNELL RESEARCH FOUNDATION, INC.;GVARYAHU, GADI
