Effects of Yeast Culture Supplementation on Growth Performance, Nutrient Digestibility, Blood Metabolites, and Immune Response in Geese
The present study was conducted to investigate the effects of dietary yeast culture (YC) supplementation on growth performance, nutrient digestibility, blood metabolites, and immune functions in geese. One-day-old Sichuan white geese (<i>n</i> = 300) were randomly divided into five group...
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MDPI AG
2022-05-01
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| Series: | Animals |
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| Online Access: | https://www.mdpi.com/2076-2615/12/10/1270 |
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| author | Jie Zhang Hang He Yancong Yuan Kun Wan Longjiao Li Anfang Liu |
| author_facet | Jie Zhang Hang He Yancong Yuan Kun Wan Longjiao Li Anfang Liu |
| author_sort | Jie Zhang |
| collection | DOAJ |
| description | The present study was conducted to investigate the effects of dietary yeast culture (YC) supplementation on growth performance, nutrient digestibility, blood metabolites, and immune functions in geese. One-day-old Sichuan white geese (<i>n</i> = 300) were randomly divided into five groups containing 0 (control), 0.5%, 1.0%, 2.0%, and 4.0% of YC in the diet for 70 days. In general, the dietary supplementation of YC significantly increased the average daily gain and feed conversion ratio (<i>p</i> < 0.05) in which the 1.0% or 2.0% levels were better and significantly reduced the average daily feed intake at the 2.0% level (<i>p</i> < 0.05). YC supplementation increased digestibility of P (quadratic, <i>p</i> = 0.01) and gross energy (quadratic, <i>p</i> = 0.04) from days 23 to 27 and crude protein from days 23 to 27 and days 64 to 68 (quadratic, <i>p</i> ≤ 0.05), with the 2.0% level being the most effective. Serum metabolites were significantly affected by dietary YC (<i>p</i> < 0.05). Supplemental YC increased IL-2 on day 28 (linear, <i>p</i> = 0.01; quadratic, <i>p</i> = 0.04) and lysozyme on day 70 (quadratic, <i>p</i> = 0.04) and decreased complement C4 on day 70 (linear, <i>p</i> = 0.05). Interferon-γ, interleukin-2, and tumor necrosis factor-α genes were mostly up-regulated after YC supplementation, and interferon-γ and interleukin-2 gene expression levels were significantly increased at the 2.0% level (<i>p</i> < 0.05). Taken together, dietary YC supplementation improved growth performance and affected nutrient digestibility, serum metabolites, and immune function in geese, which was optimized at the 2% YC level in the present study. |
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| institution | Directory Open Access Journal |
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| language | English |
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| publishDate | 2022-05-01 |
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| series | Animals |
| spelling | doaj.art-16d2fa2b7ce74900b486730b1c84fbf82023-11-23T09:46:28ZengMDPI AGAnimals2076-26152022-05-011210127010.3390/ani12101270Effects of Yeast Culture Supplementation on Growth Performance, Nutrient Digestibility, Blood Metabolites, and Immune Response in GeeseJie Zhang0Hang He1Yancong Yuan2Kun Wan3Longjiao Li4Anfang Liu5College of Animal Science and Technology, Southwest University, Chongqing 402460, ChinaCollege of Animal Science and Technology, Chongqing Three Gorges Vocational College, Chongqing 404155, ChinaCollege of Animal Science and Technology, Southwest University, Chongqing 402460, ChinaCollege of Animal Science and Technology, Southwest University, Chongqing 402460, ChinaCollege of Animal Science and Technology, Chongqing Three Gorges Vocational College, Chongqing 404155, ChinaCollege of Animal Science and Technology, Southwest University, Chongqing 402460, ChinaThe present study was conducted to investigate the effects of dietary yeast culture (YC) supplementation on growth performance, nutrient digestibility, blood metabolites, and immune functions in geese. One-day-old Sichuan white geese (<i>n</i> = 300) were randomly divided into five groups containing 0 (control), 0.5%, 1.0%, 2.0%, and 4.0% of YC in the diet for 70 days. In general, the dietary supplementation of YC significantly increased the average daily gain and feed conversion ratio (<i>p</i> < 0.05) in which the 1.0% or 2.0% levels were better and significantly reduced the average daily feed intake at the 2.0% level (<i>p</i> < 0.05). YC supplementation increased digestibility of P (quadratic, <i>p</i> = 0.01) and gross energy (quadratic, <i>p</i> = 0.04) from days 23 to 27 and crude protein from days 23 to 27 and days 64 to 68 (quadratic, <i>p</i> ≤ 0.05), with the 2.0% level being the most effective. Serum metabolites were significantly affected by dietary YC (<i>p</i> < 0.05). Supplemental YC increased IL-2 on day 28 (linear, <i>p</i> = 0.01; quadratic, <i>p</i> = 0.04) and lysozyme on day 70 (quadratic, <i>p</i> = 0.04) and decreased complement C4 on day 70 (linear, <i>p</i> = 0.05). Interferon-γ, interleukin-2, and tumor necrosis factor-α genes were mostly up-regulated after YC supplementation, and interferon-γ and interleukin-2 gene expression levels were significantly increased at the 2.0% level (<i>p</i> < 0.05). Taken together, dietary YC supplementation improved growth performance and affected nutrient digestibility, serum metabolites, and immune function in geese, which was optimized at the 2% YC level in the present study.https://www.mdpi.com/2076-2615/12/10/1270yeast culturegrowth performancedigestibilityimmune functiongeese |
| spellingShingle | Jie Zhang Hang He Yancong Yuan Kun Wan Longjiao Li Anfang Liu Effects of Yeast Culture Supplementation on Growth Performance, Nutrient Digestibility, Blood Metabolites, and Immune Response in Geese Animals yeast culture growth performance digestibility immune function geese |
| title | Effects of Yeast Culture Supplementation on Growth Performance, Nutrient Digestibility, Blood Metabolites, and Immune Response in Geese |
| title_full | Effects of Yeast Culture Supplementation on Growth Performance, Nutrient Digestibility, Blood Metabolites, and Immune Response in Geese |
| title_fullStr | Effects of Yeast Culture Supplementation on Growth Performance, Nutrient Digestibility, Blood Metabolites, and Immune Response in Geese |
| title_full_unstemmed | Effects of Yeast Culture Supplementation on Growth Performance, Nutrient Digestibility, Blood Metabolites, and Immune Response in Geese |
| title_short | Effects of Yeast Culture Supplementation on Growth Performance, Nutrient Digestibility, Blood Metabolites, and Immune Response in Geese |
| title_sort | effects of yeast culture supplementation on growth performance nutrient digestibility blood metabolites and immune response in geese |
| topic | yeast culture growth performance digestibility immune function geese |
| url | https://www.mdpi.com/2076-2615/12/10/1270 |
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