A Review on the Role of Exogenous Fibrolytic Enzymes in Ruminant Nutrition

Dairy production system in developing countries mainly depends on forage plants and crop residues as major portion of the Ruminants diet. The majority dry matter crops is made up fibre whose digestibility limited rumen ecosystem. Use exogenous fibrolytic enzymes (EFE) gaining popularity recent days they overcome limitations other methodologies which are used to improve fibre. Due microbial enzyme activity, ruminants able break down fibrous feedstuff, but structural polysaccharides like cellulose, hemicellulose, lignin will only be partially broken down. primary purpose these provide many nutrients possible from indigestible, potentially digestible, digestible portions cell wall. EFE employed ruminant diets can divided into three categories based specific substrates their activity take place: fibrolytic, amylolytic, proteolytic. Enzymes applied liquid or granular form hay, silage, concentrate, TMR, supplement premix. Even though positive results were obtained, date animal responses supplements have varied greatly due enzymatic handling, dosage, diet constituents, time method applications. This renders need for further dedicated research efforts broad generalization usage nutrition. goal this study was give a concise summary current state knowledge about discuss potential future areas.