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Effects of fibre-degrading enzymes in combination with different fibre sources on ileal and total tract nutrient digestibility and fermentation products in pigs.
Arch Anim Nutr. 2020 Aug; 74(4):309-324.AA

Abstract

The study was conducted to determine effects of a complex of fibre-degrading enzymes (xylanase, cellulase and β-glucanase) on nutrient digestibility, fibre fermentation and concentrations of short chain fatty acids (SCFA) at different parts of digestive tract in pigs fed different fibre-rich ingredients. A total of 36 barrows fitted with T-cannulas in the distal ileum (initial body weight of 41.1 ± 2.7 kg) were randomly allotted to six dietary treatments with three different high-fibre diets including maize bran (MB), sugar beet pulp (SBP) and soybean hulls (SH) with or without supplementation of fibre-degrading enzymes. Enzyme supplementation improved (p < 0.05) apparent ileal digestibility (AID) of dietary gross energy (GE), crude protein, dry matter (DM), organic matter (OM), total dietary fibre (TDF), neutral detergent fibre (NDF) and apparent total tract digestibility (ATTD) of dietary GE, DM, OM, TDF, insoluble dietary fibre (IDF) when pigs were fed MB, SBP or SH diets. When compared to the SBP and SH diets, the AID of GE, DM, ash, OM and NDF in diet MB was higher (p < 0.05), but the hindgut disappearance and ATTD of nutrients, except for ether extract and crude ash, were lower (p < 0.05). Enzyme supplementation increased acetate and total SCFA concentrations in ileal digesta and faeces of pigs. In conclusion, enzyme addition improved IDF fermentation and SCFA concentration in the whole intestine of pigs, and there was a large variation of digestibility of fibre components among MB, SH and SBP owing to their different fibre composition. Therefore, fibre-degrading enzymes should be applied to fibrous diets to improve efficient production of swine, especially considering low fibre digestibility of fibre-rich ingredients.

Authors+Show Affiliations

State Key Laboratory of Animal Nutrition, Ministry of Agriculture Feed Industry Centre, China Agricultural University , Beijing, China.State Key Laboratory of Animal Nutrition, Ministry of Agriculture Feed Industry Centre, China Agricultural University , Beijing, China.State Key Laboratory of Animal Nutrition, Ministry of Agriculture Feed Industry Centre, China Agricultural University , Beijing, China.State Key Laboratory of Animal Nutrition, Ministry of Agriculture Feed Industry Centre, China Agricultural University , Beijing, China.State Key Laboratory of Animal Nutrition, Ministry of Agriculture Feed Industry Centre, China Agricultural University , Beijing, China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32441546

Citation

Zhao, Jinbiao, et al. "Effects of Fibre-degrading Enzymes in Combination With Different Fibre Sources On Ileal and Total Tract Nutrient Digestibility and Fermentation Products in Pigs." Archives of Animal Nutrition, vol. 74, no. 4, 2020, pp. 309-324.
Zhao J, Zhang G, Liu L, et al. Effects of fibre-degrading enzymes in combination with different fibre sources on ileal and total tract nutrient digestibility and fermentation products in pigs. Arch Anim Nutr. 2020;74(4):309-324.
Zhao, J., Zhang, G., Liu, L., Wang, J., & Zhang, S. (2020). Effects of fibre-degrading enzymes in combination with different fibre sources on ileal and total tract nutrient digestibility and fermentation products in pigs. Archives of Animal Nutrition, 74(4), 309-324. https://doi.org/10.1080/1745039X.2020.1766333
Zhao J, et al. Effects of Fibre-degrading Enzymes in Combination With Different Fibre Sources On Ileal and Total Tract Nutrient Digestibility and Fermentation Products in Pigs. Arch Anim Nutr. 2020;74(4):309-324. PubMed PMID: 32441546.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of fibre-degrading enzymes in combination with different fibre sources on ileal and total tract nutrient digestibility and fermentation products in pigs. AU - Zhao,Jinbiao, AU - Zhang,Gang, AU - Liu,Ling, AU - Wang,Junjun, AU - Zhang,Shuai, Y1 - 2020/05/22/ PY - 2020/5/23/pubmed PY - 2020/10/21/medline PY - 2020/5/23/entrez KW - Digestibility KW - enzymes KW - fibre KW - maize bran KW - pigs KW - short chain fatty acids KW - soyabean husks KW - sugarbeet pulp SP - 309 EP - 324 JF - Archives of animal nutrition JO - Arch Anim Nutr VL - 74 IS - 4 N2 - The study was conducted to determine effects of a complex of fibre-degrading enzymes (xylanase, cellulase and β-glucanase) on nutrient digestibility, fibre fermentation and concentrations of short chain fatty acids (SCFA) at different parts of digestive tract in pigs fed different fibre-rich ingredients. A total of 36 barrows fitted with T-cannulas in the distal ileum (initial body weight of 41.1 ± 2.7 kg) were randomly allotted to six dietary treatments with three different high-fibre diets including maize bran (MB), sugar beet pulp (SBP) and soybean hulls (SH) with or without supplementation of fibre-degrading enzymes. Enzyme supplementation improved (p < 0.05) apparent ileal digestibility (AID) of dietary gross energy (GE), crude protein, dry matter (DM), organic matter (OM), total dietary fibre (TDF), neutral detergent fibre (NDF) and apparent total tract digestibility (ATTD) of dietary GE, DM, OM, TDF, insoluble dietary fibre (IDF) when pigs were fed MB, SBP or SH diets. When compared to the SBP and SH diets, the AID of GE, DM, ash, OM and NDF in diet MB was higher (p < 0.05), but the hindgut disappearance and ATTD of nutrients, except for ether extract and crude ash, were lower (p < 0.05). Enzyme supplementation increased acetate and total SCFA concentrations in ileal digesta and faeces of pigs. In conclusion, enzyme addition improved IDF fermentation and SCFA concentration in the whole intestine of pigs, and there was a large variation of digestibility of fibre components among MB, SH and SBP owing to their different fibre composition. Therefore, fibre-degrading enzymes should be applied to fibrous diets to improve efficient production of swine, especially considering low fibre digestibility of fibre-rich ingredients. SN - 1477-2817 UR - https://www.unboundmedicine.com/medline/citation/32441546/Effects_of_fibre_degrading_enzymes_in_combination_with_different_fibre_sources_on_ileal_and_total_tract_nutrient_digestibility_and_fermentation_products_in_pigs_ DB - PRIME DP - Unbound Medicine ER -