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Effects of different forms of yeast Saccharomyces cerevisiae on growth performance, intestinal development, and systemic immunity in early-weaned piglets.

Jiang Z, Wei S, Wang Z, Zhu C, Hu S, Zheng C, Chen Z, Hu Y, Wang L, Ma X, Yang X - J Anim Sci Biotechnol (2015)

Bottom Line: Growth performance of piglets was measured weekly.Dietary supplementation with LY and SFY improved G:F of piglets at days 1-21 of the experiment (P < 0.05) compared to Control group.In conclusion, dietary supplementation with both LY and SFY enhanced feed conversion, small intestinal development, and systemic immunity in early-weaned piglets, with better improvement in feed conversion by dietary supplementation with LY, while dietary supplementation with SFY was more effective in increasing systemic immune functions in early-weaned piglets.

View Article: PubMed Central - PubMed

Affiliation: Key Laboratory of Animal Nutrition and Feed (South China), Ministry of Agriculture of China, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Public Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China ; Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China.

ABSTRACT
The present study was conducted to determine effects of different forms of yeast (Saccharomyces cerevisiae, strain Y200007) on the growth performance, intestinal development, and systemic immunity in early-weaned piglets. A total of 96 piglets (14-d old, initial average body weight of 4.5 kg) were assigned to 4 dietary treatments: (1) basal diet without yeast (Control); (2) basal diet supplemented with 3.00 g/kg live yeast (LY); (3) basal diet supplemented with 2.66 g/kg heat-killed whole yeast (HKY); and (4) basal diet supplemented with 3.00 g/kg superfine yeast powders (SFY). Diets and water were provided ad libitum to the piglets during 3-week experiment. Growth performance of piglets was measured weekly. Samples of blood and small intestine were collected at days 7 and 21 of experiment. Dietary supplementation with LY and SFY improved G:F of piglets at days 1-21 of the experiment (P < 0.05) compared to Control group. Serum concentrations of growth hormone (GH), triiodothyronine (T3), tetraiodothyronine (T4), and insulin growth factor 1 (IGF-1) in piglets at day 21 of the experiment were higher when fed diets supplemented with LY and SFY than those in Control group (P < 0.05). Compared to Control group, contents of serum urea nitrogen of piglets were reduced by the 3 yeast-supplemented diets (P < 0.05). Diets supplemented with LY increased villus height and villus-to-crypt ratio in duodenum and jejunum of piglets (P < 0.05) compared to other two groups at day 7 of the experiment. Feeding diets supplemented with LY and SFY increased (P < 0.05) serum concentrations of IgA, IL-2, and IL-6 levels in piglets compared to Control. The CD4(+)/CD8(+) ratio and proliferation of T-lymphocytes in piglets fed diets supplemented with LY were increased compared to that of Control group at day 7 of the experiment (P < 0.05). In conclusion, dietary supplementation with both LY and SFY enhanced feed conversion, small intestinal development, and systemic immunity in early-weaned piglets, with better improvement in feed conversion by dietary supplementation with LY, while dietary supplementation with SFY was more effective in increasing systemic immune functions in early-weaned piglets.

No MeSH data available.


Related in: MedlinePlus

Analysis of intestinal ultrastructure morphology of piglets at days 7 and 21 by scanning electron microscopy. Duodenal and jejunal samples of piglets from (a) Control group, (b) LY-supplemented group, (c) HKY-supplemented group, and (d) SFY-supplemented group were examined with a scanning electron microscopy (XL30ESEM). Abbreviations: LY, live yeast; HKY, heat-killed whole yeast; SFY, superfine yeast powders
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Fig2: Analysis of intestinal ultrastructure morphology of piglets at days 7 and 21 by scanning electron microscopy. Duodenal and jejunal samples of piglets from (a) Control group, (b) LY-supplemented group, (c) HKY-supplemented group, and (d) SFY-supplemented group were examined with a scanning electron microscopy (XL30ESEM). Abbreviations: LY, live yeast; HKY, heat-killed whole yeast; SFY, superfine yeast powders

Mentions: Villus height and villus-to-crypt ratio in both duodenum and jejunum were increased in piglets fed diets supplemented with LY or SFY when compared with those in Control group at days 7 and 21 of the experiment (P < 0.05) (Table 4 and Fig. 2). There were no differences in crypt depth of duodenum and jejunum in piglets, as well as villus height, crypt depth and villus-to-crypt ratio of ileum in piglets (data not shown) among dietary treatments at days 7 and 21 of the experiment (P > 0.05).Table 4


Effects of different forms of yeast Saccharomyces cerevisiae on growth performance, intestinal development, and systemic immunity in early-weaned piglets.

Jiang Z, Wei S, Wang Z, Zhu C, Hu S, Zheng C, Chen Z, Hu Y, Wang L, Ma X, Yang X - J Anim Sci Biotechnol (2015)

Analysis of intestinal ultrastructure morphology of piglets at days 7 and 21 by scanning electron microscopy. Duodenal and jejunal samples of piglets from (a) Control group, (b) LY-supplemented group, (c) HKY-supplemented group, and (d) SFY-supplemented group were examined with a scanning electron microscopy (XL30ESEM). Abbreviations: LY, live yeast; HKY, heat-killed whole yeast; SFY, superfine yeast powders
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4644338&req=5

Fig2: Analysis of intestinal ultrastructure morphology of piglets at days 7 and 21 by scanning electron microscopy. Duodenal and jejunal samples of piglets from (a) Control group, (b) LY-supplemented group, (c) HKY-supplemented group, and (d) SFY-supplemented group were examined with a scanning electron microscopy (XL30ESEM). Abbreviations: LY, live yeast; HKY, heat-killed whole yeast; SFY, superfine yeast powders
Mentions: Villus height and villus-to-crypt ratio in both duodenum and jejunum were increased in piglets fed diets supplemented with LY or SFY when compared with those in Control group at days 7 and 21 of the experiment (P < 0.05) (Table 4 and Fig. 2). There were no differences in crypt depth of duodenum and jejunum in piglets, as well as villus height, crypt depth and villus-to-crypt ratio of ileum in piglets (data not shown) among dietary treatments at days 7 and 21 of the experiment (P > 0.05).Table 4

Bottom Line: Growth performance of piglets was measured weekly.Dietary supplementation with LY and SFY improved G:F of piglets at days 1-21 of the experiment (P < 0.05) compared to Control group.In conclusion, dietary supplementation with both LY and SFY enhanced feed conversion, small intestinal development, and systemic immunity in early-weaned piglets, with better improvement in feed conversion by dietary supplementation with LY, while dietary supplementation with SFY was more effective in increasing systemic immune functions in early-weaned piglets.

View Article: PubMed Central - PubMed

Affiliation: Key Laboratory of Animal Nutrition and Feed (South China), Ministry of Agriculture of China, State Key Laboratory of Livestock and Poultry Breeding, Guangdong Public Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China ; Agro-biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640 China.

ABSTRACT
The present study was conducted to determine effects of different forms of yeast (Saccharomyces cerevisiae, strain Y200007) on the growth performance, intestinal development, and systemic immunity in early-weaned piglets. A total of 96 piglets (14-d old, initial average body weight of 4.5 kg) were assigned to 4 dietary treatments: (1) basal diet without yeast (Control); (2) basal diet supplemented with 3.00 g/kg live yeast (LY); (3) basal diet supplemented with 2.66 g/kg heat-killed whole yeast (HKY); and (4) basal diet supplemented with 3.00 g/kg superfine yeast powders (SFY). Diets and water were provided ad libitum to the piglets during 3-week experiment. Growth performance of piglets was measured weekly. Samples of blood and small intestine were collected at days 7 and 21 of experiment. Dietary supplementation with LY and SFY improved G:F of piglets at days 1-21 of the experiment (P < 0.05) compared to Control group. Serum concentrations of growth hormone (GH), triiodothyronine (T3), tetraiodothyronine (T4), and insulin growth factor 1 (IGF-1) in piglets at day 21 of the experiment were higher when fed diets supplemented with LY and SFY than those in Control group (P < 0.05). Compared to Control group, contents of serum urea nitrogen of piglets were reduced by the 3 yeast-supplemented diets (P < 0.05). Diets supplemented with LY increased villus height and villus-to-crypt ratio in duodenum and jejunum of piglets (P < 0.05) compared to other two groups at day 7 of the experiment. Feeding diets supplemented with LY and SFY increased (P < 0.05) serum concentrations of IgA, IL-2, and IL-6 levels in piglets compared to Control. The CD4(+)/CD8(+) ratio and proliferation of T-lymphocytes in piglets fed diets supplemented with LY were increased compared to that of Control group at day 7 of the experiment (P < 0.05). In conclusion, dietary supplementation with both LY and SFY enhanced feed conversion, small intestinal development, and systemic immunity in early-weaned piglets, with better improvement in feed conversion by dietary supplementation with LY, while dietary supplementation with SFY was more effective in increasing systemic immune functions in early-weaned piglets.

No MeSH data available.


Related in: MedlinePlus