Ruminant yemlerinin sindirilebilirliklerini saptamada uygulanan çeşitli in vitro yöntemlerinin karşılaştırılması üzerinde bir araştırma

Abstract

In this work, the digestibility of the organic and dry matters in the forage and concentrate feed mate rials were determined hy various in vitro methods #uch as Tilley-Terry, Yan Soest, Cellulase and Concentrates. In the evaluation of the digestibility results, Tilley-Terry method was taken as the control method since it is com parable with;, the in vivo. Although the digestibility value of the dry matter in the alfalfa hay and of the organic and the dry matters inborn obtained by Tilley Terry and Cellulase methods and the value obtained by Tilley-Terry and Concentrate methods for sunflower seed meal were statistically nonsignificant, the digestibility of dry and organic matters in the other feedstuff s obtai ned by Tilley-Terry and other methods showed significant differences. As a result it was concluded that the Tilley- Terry method was superior to all the other methods consi dered. KEY WORDS: Straw, alfalfa hay, corn, barley, sunflower seed meal, in vitro, digestibility, of orga nic matter f digestibility of dry matter, in vivo.