TY  - JA
AU  - Cilliers,S.C.
AU  - Chwalibog,A.
AU  - Du Preez,J.J.
AU  - Hayes,J.P.
AU  - Sales,J.
TI  - A comparative study between mature ostriches (struthio camelus) and adult cockerels with respect to true and apparent metabolisable energy values for maize,         barley, oats and triticale
PY  - 1997///
T2  - British Poultry Science
ER  -