Dietary Supplements Improve the Growth Performance and Carcass Yields of Indigenous Sheep in Ethiopia: A Systematic Review and Meta‐Analysis Study
ABSTRACT Despite the large number of sheep in Ethiopia, their productivity remains low, mainly due to inadequate and poor‐quality feed. Therefore, this systematic review and meta‐analysis study was conducted to evaluate the effect of dietary supplements on the growth performance and carcass yield in...
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Wiley
2025-01-01
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| Series: | Veterinary Medicine and Science |
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| Online Access: | https://doi.org/10.1002/vms3.70129 |
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| author | Hussen Ebrahim Kefyalew Alemayehu |
| author_facet | Hussen Ebrahim Kefyalew Alemayehu |
| author_sort | Hussen Ebrahim |
| collection | DOAJ |
| description | ABSTRACT Despite the large number of sheep in Ethiopia, their productivity remains low, mainly due to inadequate and poor‐quality feed. Therefore, this systematic review and meta‐analysis study was conducted to evaluate the effect of dietary supplements on the growth performance and carcass yield indices of indigenous sheep in Ethiopia. This study included a total of 21 studies that used 533 sheep from 11 breeds. We used Meta‐Essentials Version 1.5 to determine the effect sizes in a mixed‐effects model at p < 0.05. The current meta‐analyses revealed that dietary supplements had a positive and significant effect (p of Z ≤ 0.001) on the total dry matter intake (Hedges' g = 6.84 g/day/head), final body weight (Hedges' g = 3.65 kg/head), average daily gain (Hedges' g = 3.59 g/head), feed conversion efficiency (Hedges' g = 0.72 g/g), slaughter weight (Hedges' g = 2.56 kg/head) and hot carcass (Hedges' g = 2.73 kg/head) of sheep compared to the control. The meta‐analysis suggests that sheep of different breeds and sexes that were fed supplemental diets responded differently. In addition, the subgroup analysis declared that dietary supplementation of legumes resulted in a higher magnitude of effect sizes for all response variables in sheep in comparison to sheep supplemented with concentrate and browse. We detected diverse heterogeneity across studies for all response variables that ranged between 0% and 96.65%. It can be concluded that dietary supplements had a positive and significant impact on feed efficiency, growth performance and carcass yield in indigenous sheep, particularly Afar sheep, followed by Arsi Bale and Washera sheep, in Ethiopia. |
| format | Article |
| id | doaj-art-d5ff00d4a1c0453987257ffa282ea4d1 |
| institution | DOAJ |
| issn | 2053-1095 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley |
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| series | Veterinary Medicine and Science |
| spelling | doaj-art-d5ff00d4a1c0453987257ffa282ea4d12025-08-20T02:40:41ZengWileyVeterinary Medicine and Science2053-10952025-01-01111n/an/a10.1002/vms3.70129Dietary Supplements Improve the Growth Performance and Carcass Yields of Indigenous Sheep in Ethiopia: A Systematic Review and Meta‐Analysis StudyHussen Ebrahim0Kefyalew Alemayehu1Department of Animal ScienceWoldia UniversityWoldiaEthiopiaDepartment of Animal ScienceBahir Dar UniversityBahir DarEthiopiaABSTRACT Despite the large number of sheep in Ethiopia, their productivity remains low, mainly due to inadequate and poor‐quality feed. Therefore, this systematic review and meta‐analysis study was conducted to evaluate the effect of dietary supplements on the growth performance and carcass yield indices of indigenous sheep in Ethiopia. This study included a total of 21 studies that used 533 sheep from 11 breeds. We used Meta‐Essentials Version 1.5 to determine the effect sizes in a mixed‐effects model at p < 0.05. The current meta‐analyses revealed that dietary supplements had a positive and significant effect (p of Z ≤ 0.001) on the total dry matter intake (Hedges' g = 6.84 g/day/head), final body weight (Hedges' g = 3.65 kg/head), average daily gain (Hedges' g = 3.59 g/head), feed conversion efficiency (Hedges' g = 0.72 g/g), slaughter weight (Hedges' g = 2.56 kg/head) and hot carcass (Hedges' g = 2.73 kg/head) of sheep compared to the control. The meta‐analysis suggests that sheep of different breeds and sexes that were fed supplemental diets responded differently. In addition, the subgroup analysis declared that dietary supplementation of legumes resulted in a higher magnitude of effect sizes for all response variables in sheep in comparison to sheep supplemented with concentrate and browse. We detected diverse heterogeneity across studies for all response variables that ranged between 0% and 96.65%. It can be concluded that dietary supplements had a positive and significant impact on feed efficiency, growth performance and carcass yield in indigenous sheep, particularly Afar sheep, followed by Arsi Bale and Washera sheep, in Ethiopia.https://doi.org/10.1002/vms3.70129carcass yielddietary supplementgrowth performanceindigenous sheep |
| spellingShingle | Hussen Ebrahim Kefyalew Alemayehu Dietary Supplements Improve the Growth Performance and Carcass Yields of Indigenous Sheep in Ethiopia: A Systematic Review and Meta‐Analysis Study Veterinary Medicine and Science carcass yield dietary supplement growth performance indigenous sheep |
| title | Dietary Supplements Improve the Growth Performance and Carcass Yields of Indigenous Sheep in Ethiopia: A Systematic Review and Meta‐Analysis Study |
| title_full | Dietary Supplements Improve the Growth Performance and Carcass Yields of Indigenous Sheep in Ethiopia: A Systematic Review and Meta‐Analysis Study |
| title_fullStr | Dietary Supplements Improve the Growth Performance and Carcass Yields of Indigenous Sheep in Ethiopia: A Systematic Review and Meta‐Analysis Study |
| title_full_unstemmed | Dietary Supplements Improve the Growth Performance and Carcass Yields of Indigenous Sheep in Ethiopia: A Systematic Review and Meta‐Analysis Study |
| title_short | Dietary Supplements Improve the Growth Performance and Carcass Yields of Indigenous Sheep in Ethiopia: A Systematic Review and Meta‐Analysis Study |
| title_sort | dietary supplements improve the growth performance and carcass yields of indigenous sheep in ethiopia a systematic review and meta analysis study |
| topic | carcass yield dietary supplement growth performance indigenous sheep |
| url | https://doi.org/10.1002/vms3.70129 |
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