Meta-analytic effect of Saccharomyces cerevisiae on dry matter intake, milk yield and components of lactating goats
The results of investigations on the impact of Saccharomyces cerevisiae (SC) on performance characteristics of lactating goats are inconsistent. Thus, this study aimed to summarize available evidence on the effect of SC supplementation on dry matter intake (DMI), milk yield and composition in lactat...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2022-11-01
|
| Series: | Frontiers in Veterinary Science |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fvets.2022.1014977/full |
| _version_ | 1811170157875167232 |
|---|---|
| author | Ifeanyi Princewill Ogbuewu Ifeanyi Princewill Ogbuewu Christian Anayo Mbajiorgu |
| author_facet | Ifeanyi Princewill Ogbuewu Ifeanyi Princewill Ogbuewu Christian Anayo Mbajiorgu |
| author_sort | Ifeanyi Princewill Ogbuewu |
| collection | DOAJ |
| description | The results of investigations on the impact of Saccharomyces cerevisiae (SC) on performance characteristics of lactating goats are inconsistent. Thus, this study aimed to summarize available evidence on the effect of SC supplementation on dry matter intake (DMI), milk yield and composition in lactating goats using meta-analysis. A systematic search performed on Scopus, Google Scholar and PubMed databases yielded 1,368 studies of which 18 were used for the meta-analysis. Subgroup and meta-regression analyses were performed to explore the sources of heterogeneity in response to dietary SC supplementation. A random-effects model showed that SC had a moderate effect on milk yield [standardized mean differences (SMD) = 0.51; 95% CI: 0.20 to 0.82, p = 0.001] and milk fat (SMD = 0.30; 95% CI: 0.05 to 0.55, p = 0.02) in lactating goats when compared to the controls. Subgroup analysis by SC type indicated that live SC had a large to moderate effect on milk yield (SMD = 1.46; 95% CI: 0.96 to 1.96, p < 0.001) and milk fat (SMD = 0.51; 95% CI: 0.19 to 0.84, p = 0.002), whereas dead SC had a large negative effect on DMI (SMD = −0.82; 95% CI: −1.28 to −0.7, p < 0.001) and a moderate reduction effect on milk yield (SMD = −0.55; 95% CI: −0.99 to −1.96, p = 0.015). We found significant heterogeneity across studies that evaluated the effect of SC treatment on DMI and milk yield in lactating goats and meta-regression analysis explained most of the sources of heterogeneity. In conclusion, pooled results showed that dietary SC supplementation increased milk yield and fat in lactating goats. In addition, subgroup analysis revealed that both live and fermented SC increased milk yield and fat in lactating goats, while dead SC reduced DMI and milk yield. |
| first_indexed | 2024-04-10T16:53:37Z |
| format | Article |
| id | doaj.art-e441b228eaf04b979df19723e63ddc11 |
| institution | Directory Open Access Journal |
| issn | 2297-1769 |
| language | English |
| last_indexed | 2024-04-10T16:53:37Z |
| publishDate | 2022-11-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Veterinary Science |
| spelling | doaj.art-e441b228eaf04b979df19723e63ddc112023-02-07T11:44:25ZengFrontiers Media S.A.Frontiers in Veterinary Science2297-17692022-11-01910.3389/fvets.2022.10149771014977Meta-analytic effect of Saccharomyces cerevisiae on dry matter intake, milk yield and components of lactating goatsIfeanyi Princewill Ogbuewu0Ifeanyi Princewill Ogbuewu1Christian Anayo Mbajiorgu2Department of Animal Science and Technology, Federal University of Technology, Owerri, Imo State, NigeriaDepartment of Agriculture and Animal Health, University of South Africa, Florida, South AfricaDepartment of Agriculture and Animal Health, University of South Africa, Florida, South AfricaThe results of investigations on the impact of Saccharomyces cerevisiae (SC) on performance characteristics of lactating goats are inconsistent. Thus, this study aimed to summarize available evidence on the effect of SC supplementation on dry matter intake (DMI), milk yield and composition in lactating goats using meta-analysis. A systematic search performed on Scopus, Google Scholar and PubMed databases yielded 1,368 studies of which 18 were used for the meta-analysis. Subgroup and meta-regression analyses were performed to explore the sources of heterogeneity in response to dietary SC supplementation. A random-effects model showed that SC had a moderate effect on milk yield [standardized mean differences (SMD) = 0.51; 95% CI: 0.20 to 0.82, p = 0.001] and milk fat (SMD = 0.30; 95% CI: 0.05 to 0.55, p = 0.02) in lactating goats when compared to the controls. Subgroup analysis by SC type indicated that live SC had a large to moderate effect on milk yield (SMD = 1.46; 95% CI: 0.96 to 1.96, p < 0.001) and milk fat (SMD = 0.51; 95% CI: 0.19 to 0.84, p = 0.002), whereas dead SC had a large negative effect on DMI (SMD = −0.82; 95% CI: −1.28 to −0.7, p < 0.001) and a moderate reduction effect on milk yield (SMD = −0.55; 95% CI: −0.99 to −1.96, p = 0.015). We found significant heterogeneity across studies that evaluated the effect of SC treatment on DMI and milk yield in lactating goats and meta-regression analysis explained most of the sources of heterogeneity. In conclusion, pooled results showed that dietary SC supplementation increased milk yield and fat in lactating goats. In addition, subgroup analysis revealed that both live and fermented SC increased milk yield and fat in lactating goats, while dead SC reduced DMI and milk yield.https://www.frontiersin.org/articles/10.3389/fvets.2022.1014977/fulllactating goatsyeast productssupplementationmilk production traitsmeta-analysis |
| spellingShingle | Ifeanyi Princewill Ogbuewu Ifeanyi Princewill Ogbuewu Christian Anayo Mbajiorgu Meta-analytic effect of Saccharomyces cerevisiae on dry matter intake, milk yield and components of lactating goats Frontiers in Veterinary Science lactating goats yeast products supplementation milk production traits meta-analysis |
| title | Meta-analytic effect of Saccharomyces cerevisiae on dry matter intake, milk yield and components of lactating goats |
| title_full | Meta-analytic effect of Saccharomyces cerevisiae on dry matter intake, milk yield and components of lactating goats |
| title_fullStr | Meta-analytic effect of Saccharomyces cerevisiae on dry matter intake, milk yield and components of lactating goats |
| title_full_unstemmed | Meta-analytic effect of Saccharomyces cerevisiae on dry matter intake, milk yield and components of lactating goats |
| title_short | Meta-analytic effect of Saccharomyces cerevisiae on dry matter intake, milk yield and components of lactating goats |
| title_sort | meta analytic effect of saccharomyces cerevisiae on dry matter intake milk yield and components of lactating goats |
| topic | lactating goats yeast products supplementation milk production traits meta-analysis |
| url | https://www.frontiersin.org/articles/10.3389/fvets.2022.1014977/full |
| work_keys_str_mv | AT ifeanyiprincewillogbuewu metaanalyticeffectofsaccharomycescerevisiaeondrymatterintakemilkyieldandcomponentsoflactatinggoats AT ifeanyiprincewillogbuewu metaanalyticeffectofsaccharomycescerevisiaeondrymatterintakemilkyieldandcomponentsoflactatinggoats AT christiananayombajiorgu metaanalyticeffectofsaccharomycescerevisiaeondrymatterintakemilkyieldandcomponentsoflactatinggoats |