In Vitro Digestibility of Maize Offal with Enzyme Cocktails

Abstract

In vitro trial was conducted to compare the effects of cocktails of enzymes and individual enzymes on digestibility of maize offal. Three exogenous enzymes were used in a completely randomized design comprising of eight treatments and three replicates per treatment. The treatments were controlled with no enzyme, maize offal with either a xylanase , a multipurpose enzyme, a phytase, cocktail of xylanase and phytase, cocktail of xylanase and multipurpose, cocktail of phytase and multipurpose or cocktail of xylanase, phytase and multipurpose. Parameters measured were in vitro digestibility values for proximate components and fibre fractions. Enzymes, individually and as cocktails, increased the digestibility values of the measured parameters. There were significant differences (p˂0.05) between the individual enzymes in their effects on the parameters. Cocktails of the enzymes were significantly better (p˂0.05) than individual enzymes in their effects on the parameters especially fibre fractions and crude fibre. It was concluded that cocktail of enzymes is better than individual enzymes in their effects on in vitro digestibility of maize offal. Feeding trial is recommended to quantify these effects.