9Hughes J. The effect of high strength yeast culture in the diet of ely weaned alves[J].Anim. Prod,1988(46):526.
10Titi H H, Dmour R O, Abdullah A Y. Growth performance and carcass characteristics of Awassi lambs and Shami goat kids fed yeast culture in their finishing diet [J].Original Research Article Animal Feed Science and Technology,2008(142):33-43.