Supplementing tropical cattle for improved nutrient utilization and reduced enteric methane emissions
Given their high nitrogen (N) concentration and low costs, sweet potato vine silage (SPVS) and urea-molasses blocks (UMB) are recommended supplements for tropical regions; therefore, they were investigated in this study. Six heifers were allocated to three diets: the roughage diet (R) consisted of w...
| Main Authors: | , , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
MDPI
2019
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/101246 |
| _version_ | 1855536629354070016 |
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| author | Ali, Asep I.M Wassie, Shimels Eshete Korir, Daniel Merbold, Lutz Goopy, John P. Butterbach-Bahl, Klaus Dickhoefer, Uta Schlecht, Eva |
| author_browse | Ali, Asep I.M Butterbach-Bahl, Klaus Dickhoefer, Uta Goopy, John P. Korir, Daniel Merbold, Lutz Schlecht, Eva Wassie, Shimels Eshete |
| author_facet | Ali, Asep I.M Wassie, Shimels Eshete Korir, Daniel Merbold, Lutz Goopy, John P. Butterbach-Bahl, Klaus Dickhoefer, Uta Schlecht, Eva |
| author_sort | Ali, Asep I.M |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Given their high nitrogen (N) concentration and low costs, sweet potato vine silage (SPVS) and urea-molasses blocks (UMB) are recommended supplements for tropical regions; therefore, they were investigated in this study. Six heifers were allocated to three diets: the roughage diet (R) consisted of wheat straw (0.61) and Rhodes grass hay (0.39; on dry matter (DM) basis); R + SPVS combined R (0.81) and SPVS (0.19); and with R + UMB animals had access to UMB. During two experimental periods, feed intake, feces and urine excretion, digesta passage, and rumen microbial protein synthesis were determined during seven days and methane emissions during three days. There was no treatment effect (p > 0.05) on DM and N intake. Apparent DM digestibility of R + SPVS (510 g/kg) was higher (p < 0.05) than of R (474 g/kg). Digesta passage and duodenal microbial N flow were similar for all diets (p > 0.05), while N retention was highest with R + SPVS (p > 0.05). Methane emissions per unit of digested feed (g CH4/kg dDM) were lower (p < 0.05) for R + SPVS (55.2) than for R (64.7). Hence, SPVS supplementation to poor–quality roughage has the potential to increase diet digestibility and N retention while reducing CH4 emissions. |
| format | Journal Article |
| id | CGSpace101246 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | MDPI |
| publisherStr | MDPI |
| record_format | dspace |
| spelling | CGSpace1012462025-09-29T06:20:47Z Supplementing tropical cattle for improved nutrient utilization and reduced enteric methane emissions Ali, Asep I.M Wassie, Shimels Eshete Korir, Daniel Merbold, Lutz Goopy, John P. Butterbach-Bahl, Klaus Dickhoefer, Uta Schlecht, Eva cattle greenhouse gases silage urea climate change Given their high nitrogen (N) concentration and low costs, sweet potato vine silage (SPVS) and urea-molasses blocks (UMB) are recommended supplements for tropical regions; therefore, they were investigated in this study. Six heifers were allocated to three diets: the roughage diet (R) consisted of wheat straw (0.61) and Rhodes grass hay (0.39; on dry matter (DM) basis); R + SPVS combined R (0.81) and SPVS (0.19); and with R + UMB animals had access to UMB. During two experimental periods, feed intake, feces and urine excretion, digesta passage, and rumen microbial protein synthesis were determined during seven days and methane emissions during three days. There was no treatment effect (p > 0.05) on DM and N intake. Apparent DM digestibility of R + SPVS (510 g/kg) was higher (p < 0.05) than of R (474 g/kg). Digesta passage and duodenal microbial N flow were similar for all diets (p > 0.05), while N retention was highest with R + SPVS (p > 0.05). Methane emissions per unit of digested feed (g CH4/kg dDM) were lower (p < 0.05) for R + SPVS (55.2) than for R (64.7). Hence, SPVS supplementation to poor–quality roughage has the potential to increase diet digestibility and N retention while reducing CH4 emissions. 2019-04-30 2019-05-10T14:30:35Z 2019-05-10T14:30:35Z Journal Article https://hdl.handle.net/10568/101246 en Open Access MDPI Ali, A.I.M., Wassie, S.E., Korir, D., Merbold, L., Goopy, J.P., Butterbach-Bahl, K., Dickhoefer, U. and Schlecht, E. 2019. Supplementing tropical cattle for improved nutrient utilization and reduced enteric methane emissions. Animals 9(5):210. |
| spellingShingle | cattle greenhouse gases silage urea climate change Ali, Asep I.M Wassie, Shimels Eshete Korir, Daniel Merbold, Lutz Goopy, John P. Butterbach-Bahl, Klaus Dickhoefer, Uta Schlecht, Eva Supplementing tropical cattle for improved nutrient utilization and reduced enteric methane emissions |
| title | Supplementing tropical cattle for improved nutrient utilization and reduced enteric methane emissions |
| title_full | Supplementing tropical cattle for improved nutrient utilization and reduced enteric methane emissions |
| title_fullStr | Supplementing tropical cattle for improved nutrient utilization and reduced enteric methane emissions |
| title_full_unstemmed | Supplementing tropical cattle for improved nutrient utilization and reduced enteric methane emissions |
| title_short | Supplementing tropical cattle for improved nutrient utilization and reduced enteric methane emissions |
| title_sort | supplementing tropical cattle for improved nutrient utilization and reduced enteric methane emissions |
| topic | cattle greenhouse gases silage urea climate change |
| url | https://hdl.handle.net/10568/101246 |
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