New procedures in estimating feed substitution rates and in determining economic efficiency in pork production
Heady, Earl O.
New procedures in estimating feed substitution rates and in determining economic efficiency in pork production - Ames 1954 - 895-976 p. - Iowa Agricultural Expriment Station. Research Bulletin No. 409 .
Feed, Economic
New procedures in estimating feed substitution rates and in determining economic efficiency in pork production - Ames 1954 - 895-976 p. - Iowa Agricultural Expriment Station. Research Bulletin No. 409 .
Feed, Economic