Annizyme X

The increasing demand for milk requires integrated strategies to develop the animal production sector. The hardest problems which facing the developing of animal production sector in many countries is the wide gap between animal’s requirements and available feeds.

In addition, agricultural and agroindustrial activities produce thousands of tons of dry material by-products per year (Graminha et al., 2008). Although these residues are nutritious, a small portion is being used directly as feed or as components for industrially formulated cattle diets (Yang et al., 2001).

The problems of feeding agricultural by products (lignocellulosic materials) directly to farm animals are in general, low protein content, high crude fiber, low digestibility coefficients and containing some anti-nutrients factors such as tannins and alkaloids (Kholif et al., 2005). Thus, to increase digestibility of these agricultural residues, it is important to destroy the linkage between cellulose, hemicellulose and lignin.

Cellulose biodegradation by cellulases, produced by numerous microorganisms is very important in several agricultural and waste treatment processes (Hamer, 2003; Angenent et al., 2004Das and Singh, 2004; Haight, 2005; Murad et al., 2009; Azzaz, 2009). Recent advances in fermentation technology and biotechnology have allowed for production of large quantities of biologically active enzymes such as cellulases that can also be used as livestock feed supplements (McAllister et al., 2001).

Supplementing diets of farm animals with cellulases can improve feed utilization and animal performance by enhancing fiber degradation in vitro (Gado et al., 2007; El-Adawy et al., 2008; Rodrigues et al., 2008; Murad et al., 2009; Azzaz, 2009), in situ (Lewis et al., 1996; Tricarico et al.,