Yeast-derived mannan-rich fraction as an alternative for zinc oxide to alleviate diarrhea incidence and improve growth performance in weaned pigs

The objective of this study was to evaluate whether partial or complete replacement of zinc oxide (ZnO) with the mannan-rich fraction (MRF) would maintain or further improve growth performance, and affect diarrhea incidence, nutrient digestibility, serum growth-related hormone level, and intestinal...

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Bibliographic Details
Published in:Animal feed science and technology 2021-11, Vol.281, p.115111, Article 115111
Main Authors: Zhang, G., Zhao, J.B., Dong, W.X., Song, X.M., Lin, G., Li, D.F., Zhang, S.
Format: Article
Language:English
Subjects:
Growth performance
Intestinal health
Mannan oligosaccharide
Mannan-rich fraction
Weaned pigs
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Summary:The objective of this study was to evaluate whether partial or complete replacement of zinc oxide (ZnO) with the mannan-rich fraction (MRF) would maintain or further improve growth performance, and affect diarrhea incidence, nutrient digestibility, serum growth-related hormone level, and intestinal health in weaned pigs. A total of 192 weaned pigs (96 barrows and 96 gilts) with an initial body weight (BW) of 7.84 ± 0.75 kg were randomly assigned to four dietary treatments in a completely randomized block design. The dietary treatments included a basal diet without antibiotics or zinc (Zn) supplementation (CON), ZnO diet (CON + 1600 mg Zn/kg from ZnO), MRF diet (CON + 800 mg MRF commercial product/kg) and MFLZ diet (CON + 800 mg MRF commercial product/kg and 800 mg Zn/kg from ZnO). Pigs fed the MFLZ diet showed greater (P 
ISSN:0377-8401
1873-2216
DOI:10.1016/j.anifeedsci.2021.115111