Impact of the Supplementation of Exogenous Protease and Carbohydrase on the Metabolizable Energy and Standardized Ileal Amino Acid Digestibility of Soybean Meals in Two Brazilian Regions

Abstract

This study aimed to evaluate the effects of different exogenous protease and carbohydrase in broiler diets on the nitrogen-corrected apparent metabolizable energy (AMEn) and standardized ileal amino acid digestibility (SIAAD) of soybean meals (SBM) in two Brazilian regions (Minas Gerais-MG and Rio Grande do Sul-RS). The total excreta collection of 528 14-d-old chicks was used to determine AMEn in a completely randomized design in a 2 (SBM MG and RS) x 5 (enzyme A, B, C, D and basal diet) + 1 (reference diet, RD) factorial arrangement, totaling 11 treatments, 8 repetitions, and 6 birds per experimental unit. Two experimental treatments (T1 and T6) without enzyme supplementation formulated with SBM MG and RS were used as negative control (NC). The RD without the inclusion of SBM MG and RS was used to correct the nitrogen balance. To determine the SIAAD, ileal content was collected from of broilers and the same experimental design and treatments of the previous trial were used except for the RD, which was replaced with a nitrogen-free diet (NFD) to quantify the excretion of endogenous amino acids. Soybean meal from MG showed the highest levels (p<0.05) of AME and AMEn (3,188 kcal/kg and 2,700 kcal/kg, respectively) in comparison to SBM RS (3,121 kcal/kg and 2,549 kcal/kg, respectively) and, when supplemented with the exogenous enzyme C, also improved the SIAAD (p<0.05), as compared to other enzymes.

Metabolizable Energy and Amino Acid Digestibility of Soybean Meal from Different Sources for Broiler Chickens Supplemented with Protease

“…Additionally, the inclusion of proteolytic enzyme supplementation allows for the greater degradation of anti-nutritional factors, increasing the availability of amino acids for muscle development and formation [ 35 ]. Combining proteolytic enzyme supplementation with diets based on easily digestible amino acids can result in cost reduction and the minimization of environmental impacts.…”

Influence of extruded soybean meal with varying fat and oleic acid content on nitrogen-corrected apparent metabolizable energy in broilers

“…However, soybean products also contribute 20 to 30% of ME in poultry diets. The ME values of SBMs vary according to processing techniques ( Pacheco et al, 2013 ; Rueda-Agudelo and Giraldo-Mejía, 2018 ; Mateos et al, 2019 ; Thanabalan et al, 2021 ; Abdollahi et al, 2022 ), varieties or genotypes ( Parsons et al, 2000 ; Valencia et al, 2009 ; Loeffler et al, 2013 ), and geographical origins ( de Coca-Sinova et al, 2008 ; Silva et al, 2022 ). Recently, soybean cultivars with varying high oleic ( HO ) fatty acid profiles (high oleic, low linolenic acid) have been developed to enhance the shelf-life and unsaturated fatty acid profile of soybeans and enrich meat products with oleic acid ( Slaughter et al, 2019 ; Knowlton, 2022 ).…”

Enzyme use in cattle nutrition, implications for health and productivity (review)

“…В основном мультиферментных комплексов, состоящих из целлюлаз, ксиланаз, амилаз и пектиназ (Ugwuanyi JO, 2016). Они обычно используются для улучшения усвояемости клеточных стенок корма, повышения доступности крахмала, присутствующего в злаках, и улучшения продуктивности молочного скотаShekhar C et al, 2010). В стремлении увеличить производство молока и снизить его стоимость было показано, что использование ферментов в кормлении жвачных животных оказывает положительное влияние на надои молока(Refat B et al, 2018).Ферменты, такие как ксиланазы, использовались при предыдущей обработке кормов для улучшения их усвояемости у жвачных животных(Lucio BSV et al, 2021) и для облегчения компостирования глюканазами, пектиназами, целлюлазами, протеазами, амилазами, фитазами, галактозидазами и липазами, для расщепления компонентов корма, снижения вязкости сырья (Rodrigues GRD et al, 2022).…”