Title: | Multi-carbohydrase effects on energy utilization depend on soluble non-starch polysaccharides-to-total non-starch polysaccharides in broiler diets |
Contributor(s): | Musigwa, Sosthene (author) ; Cozannet, Pierre (author); Morgan, Natalie (author) ; Swick, Robert A (author) ; Wu, Shu-Biao (author) |
Publication Date: | 2021-02 |
Early Online Version: | 2020-11-04 |
Open Access: | Yes |
DOI: | 10.1016/j.psj.2020.10.038 |
Handle Link: | https://hdl.handle.net/1959.11/30524 |
Abstract: | | Non-starch polysaccharides (NSP), especially in water-soluble form, are a common anti-nutritional factor in cereal-based poultry diets. Consequently, carbohydrases are applied to diets to combat the negative effects of NSP on bird performance and health, particularly when feeding viscous grains. This study investigated the effect of supplementing multi-carbohydrases (MC) to broiler diets containing either low (LS) or high (HS) soluble NSP (sNSP) to total NSP (tNSP) ratios on energy partitioning, nitrogen (N) balance, and performance. A 2 × 2 factorial arrangement of treatments (MC, no or yes; sNSP/tNSP, LS vs. HS) was applied, resulting in 4 dietary treatments, each replicated 8 times. These treatments were fed to Ross 308 broilers in closed-circuit indirect calorimetry chambers, with 2 birds (a male and a female) per replicate chamber (n = 64). The results showed that MC addition increased AME, net energy (NE), and AME/gross energy, regardless of sNSP/tNSP content (P < 0.01 for all). There was an MC × sNSP/tNSP interaction for feed intake (FI, P < 0.05), denoting that in the absence of MC, the HS-fed birds had lower FI than LS-fed birds, but this difference was eliminated when MC was present. There were MC × sNSP/tNSP interactions observed for AME intake (AMEi) per metabolic BW (BW0.70, P < 0.05), AMEi/N retention (Nr, P < 0.01), NE intake (NEi)/Nr (P < 0.05), retained energy (RE) as fat per total RE (REf/RE, P < 0.01), and N efficiency (Nr/N intake, P < 0.05). These interactions showed that MC application increased AMEi/BW0.70, AMEi/Nr, NEi/Nr, and REf/RE only in the HS-fed birds, and N efficiency only in the LS-fed broilers. This study demonstrated that MC application markedly increased feed energy utilization in all diets, and increased N efficiency in birds fed an LS diet.
Publication Type: | Journal Article |
Source of Publication: | Poultry Science, 100(2), p. 788-796 |
Publisher: | Elsevier BV |
Place of Publication: | Netherlands |
ISSN: | 1525-3171 0032-5791 |
Fields of Research (FoR) 2008: | 070204 Animal Nutrition |
Fields of Research (FoR) 2020: | 300303 Animal nutrition |
Socio-Economic Objective (SEO) 2008: | 830309 Poultry |
Socio-Economic Objective (SEO) 2020: | 100411 Poultry |
Peer Reviewed: | Yes |
HERDC Category Description: | C1 Refereed Article in a Scholarly Journal |
Appears in Collections: | Journal Article School of Environmental and Rural Science
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