Utilization of potato peels and sugar beet pulp with and without enzyme supplementation in broiler chicken diets: effects on performance, serum biochemical indices and carcass traits
The use of enzymes as feed additives to reduce the cost of production has widely prevalent. Feed enzymes, as feed additives, help to meet consumer demand for safe and high quality food. Moreover, they play a major part in improving the efficiency of poultry feeding by changing the nutritional profile of feed ingredients. By targeting specific antinutrients in certain feed ingredients, feed enzymes allow poultry to extract more nutrients from the feed and so improve the feed efficiency (Bedford and Partridge, 2010). Research work has suggested that the negative effects of NSPs can be overcome by dietary modifications including supplementation of diets with suitable exogenous enzyme preparations (Creswell, 1994). The use of fibre degrading enzymes provides clearly visible benefits. By breaking down the soluble fibres, litter quality was significantly improved; feed costs were markedly reduced due to a marked improvement in feed efficiency and bird uniformity was enhanced (Elmakeel et al., 2007; Giraldo et al., 2008). Today, enzyme suppliers are actively promoting the additive benefits of combining more than one enzyme in feed to further diminish costs of poultry production. The theory is that each type of enzyme is targeting different antinutrients in the diet, and that by adding a combination of the enzyme activities, more energy, amino acids and minerals are released compared with these enzyme activities being used in isolation (Wang et al., 2005; Bedford and Partridge, 2010).
Therefore, this study was conducted to evaluate two distinct unconventional feeds, such as PP and SBP, in broiler diets. In addition, the impact of using a commercial enzyme mixture in improving the nutritive value of these ingredients was investigated.