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. 2023 Dec 23:8:txad139.
doi: 10.1093/tas/txad139. eCollection 2024.

Dietary of different forms of Humulus scandens on growth performance and intestinal bacterial communities in piglets

Lihong Hao  1   2 , Cheng Wang  1   2 , Huaizhong Wang  1   2 , Meng Zhou  3 , Yong Wang  4 , Hongmei Hu  1   2
Affiliations

Dietary of different forms of Humulus scandens on growth performance and intestinal bacterial communities in piglets

Lihong Hao et al. Transl Anim Sci. .

Abstract

The present study was aimed at elucidating the effects of feeding different forms of Humulus scandens (Hu) on performance and bacterial communities in piglets. A total of 160 piglets were divided into four groups: (1) a control (CG, basal diet); (2) a basal diet with Hu pulp (HS), basal diet + Hu pulp; (3) a basal diet with Hu juice (HSJ), basal diet + Hu juice; and (4) a basal diet with Hu residue (HSR), basal diet + Hu residue. Results showed that HS, HSJ, and HSR supplementation led to rich average daily gain (ADG) and poor feed conversion ratio (FCR) during 28 to 70 d of age, increased 120 d body weight (BW), average daily feed intake (ADFI) and ADG and decreased FCR during 71 to 120 d of age. Three experiment groups presented greater (P < 0.05) IgA, IgG, and IgM and lower (P < 0.05) glucose, and blood urea nitrogen. The content of diamine oxidase significantly decreased (P < 0.05) in HS group. The crude protein and crude fiber digestibility were improved (P < 0.05) in HS group and the Ca digestibility was increased (P < 0.05) in HS and HSJ groups. HSR supplementation improved the abundance of Firmicutes and decreased the abundance of Bacteroidetes. Hu supplementation with different forms increased the proportion of Lactobacillus in cecum content. These results indicated that supplemental feeding of Hu with different forms improved serum immunity, nutrient digestibility, and bacterial communities in piglets, promoting growth and development, which may be regarded as a reference for developing novel feed resources for piglets.

Keywords: Humulus scandens; bacterial communities; nutrient digestibility; piglet; serum immunity.

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Conflict of interest statement

The authors declare that they have no known financial, non-financial, or personal interest that could influence the subject matter or materials discussed in this paper in any way.

Figures

Figure 1.
Figure 1.
Bacterial diversity and community structure during feeding phase (n = 6). (A) Observed operational taxonomic unit line chart. (B) Venn diagram representing the common and unique OTUs found in each treatment. (C) Phylum-level compositions of the bacterial community of piglets. (D) Genus-level compositions of the bacterial community of piglets. CG, basal diet; HS, basal diet + Hu pulp; HSJ, basal diet + Hu juice; HSR, basal diet + Hu residue.
Figure 2.
Figure 2.
Bacterial metabolic functions in the cecum of piglets during feeding phase analyzed by PICRUSt (n = 6). (A) Level 1 metabolic pathways. (B) Level 2 KEGG ortholog functional predictions. CG, basal diet; HS, basal diet + Hu pulp; HSJ, basal diet + Hu juice; HSR, basal diet + Hu residue.
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