PSXVI-11 - Effects of Yucca Schidigera Extract and Multi-carbohydrase in Different Crude Protein Diets on Growth Performance, Nutrient Digestibility, Carcass Parameters and Noxious Gas Emission in Broilers

Abstract: The scarcity of feed raw materials with a consequential increase in the price of animal feed has attracted the attention of nutritionists to find a viable option to address this issue. The inclusion of plant extract and enzyme to the energy- and protein-reduced diet could be a viable strategy that would contribute to reducing the feed cost. Therefore, the purpose of this study was to determine how different crude protein diets with Yucca schidigera extract and multi-carbohydrase could impact broiler growth performance, nutrient digestibility, carcass metrics, and noxious gas concentrations in the excreta. A total of 480 one-day (d)-old broilers (ROSS 308), with initial body weight (BW) of 45.2 ± 0.3 g were randomly assigned into four (4) dietary treatments, each with six replication cages and 20 birds per cage. In phase I (starter), broiler were fed with diets containing T1 (CP 21%, ME 2,969 Mcal/kg); T2 (CP 19%, ME 2,863 Mcal/kg + 0.02% Yucca); T3 (CP 17%, ME 2,865 Mcal/kg + 0.02% Yucca); and T4 (CP 17%, ME 2,861 Mcal/kg + 0.02% Yucca + 0.1% α-1, 6-galactosidase and β-1,4-mannanase). During phase II (grower) diets contained T1 (CP 19%, ME 3,086 Mcal/kg); T2 (CP 17%, ME 2,977 Mcal/kg + 0.02% Yucca); T3 (CP 15%, ME 2,978 Mcal/kg + 0.02% Yucca); and T4 (CP 15%, ME 2,978 Mcal/kg + 0.02% Yucca + 0.1% α-1,6-galactosidase and β-1,4-mannanase multi-carbohydrase). The addition of Yucca extract and multi-carbohydrase to the low CP diets revealed a positive result on the growth performance, nutrient digestibility, carcass parameters, and noxious gas emission. Overall, broilers supplemented with Yucca schidigera extract 0.02% and α-1,6-galactosidase and β-1,4-mannanase multi-carbohydrase (0.1%) demonstrated the best production performances compared with the other treatment groups. Thus, a combination of Yucca schidigera and multi-carbohydrase could to be added to the diets with low CP to boost broiler production performance.