Effects of urea plus nitrate pretreated rice straw and corn oil supplementation on fiber digestibility, nitrogen balance, rumen fermentation, microbiota and methane emissions in goats
Urea pretreatment is an efficient strategy to improve fiber digestibility of low quality roughages for ruminants. Nitrate and oil are usually used to inhibit enteric methane (CH4) emissions from ruminants. The objective of this study was to examine the combined effects of urea plus nitrate pretreate...
| Autores principales: | , , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Springer
2019
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/129280 |
| _version_ | 1855533035081957376 |
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| author | Xiumin Zhang Medrano, Rodolfo F. Min Wang Beauchemin, Karen A. Zhiyuan Ma Rong Wang Jiangnan Wen Lukuyu, Ben A. Zhiliang Tan |
| author_browse | Beauchemin, Karen A. Jiangnan Wen Lukuyu, Ben A. Medrano, Rodolfo F. Min Wang Rong Wang Xiumin Zhang Zhiliang Tan Zhiyuan Ma |
| author_facet | Xiumin Zhang Medrano, Rodolfo F. Min Wang Beauchemin, Karen A. Zhiyuan Ma Rong Wang Jiangnan Wen Lukuyu, Ben A. Zhiliang Tan |
| author_sort | Xiumin Zhang |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Urea pretreatment is an efficient strategy to improve fiber digestibility of low quality roughages for ruminants. Nitrate and oil are usually used to inhibit enteric methane (CH4) emissions from ruminants. The objective of this study was to examine the combined effects of urea plus nitrate pretreated rice straw and corn oil supplementation to the diet on nutrient digestibility, nitrogen (N) balance, CH4 emissions, ruminal fermentation characteristics and microbiota in goats. Nine female goats were used in a triple 3 × 3 Latin Square design (27 d periods). The treatments were: control (untreated rice straw, no added corn oil), rice straw pretreated with urea and nitrate (34 and 4.7 g/kg of rice straw on a dry matter [DM] basis, respectively, UN), and UN diet supplemented with corn oil (15 g/kg soybean and 15 g/kg corn were replaced by 30 g/kg corn oil, DM basis, UNCO).Compared with control, UN increased neutral detergent fiber (NDF) digestibility (P < 0.001) and copies of protozoa (P < 0.001) and R. albus (P < 0.05) in the rumen, but decreased N retention (-21.2%, P < 0.001), dissolved hydrogen concentration (-22.8%, P < 0.001), molar proportion of butyrate (-18.2%, P < 0.05), (acetate + butyrate) to propionate ratio (P < 0.05) and enteric CH4 emissions (-10.2%, P < 0.05). In comparison with UN, UNCO increased N retention (+34.9%, P < 0.001) and decreased copies of protozoa (P < 0.001) and methanogens (P < 0.001). Compared with control, UNCO increased NDF digestibility (+8.3%, P < 0.001), reduced ruminal dissolved CH4 concentration (-24.4%, P < 0.001) and enteric CH4 emissions (-12.6%, P < 0.05).A combination of rice straw pretreated with urea plus nitrate and corn oil supplementation of the diet improved fiber digestibility and lowered enteric CH4 emissions without negative effects on N retention. These strategies improved the utilization of rice straw by goats. |
| format | Journal Article |
| id | CGSpace129280 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace1292802025-01-27T15:00:52Z Effects of urea plus nitrate pretreated rice straw and corn oil supplementation on fiber digestibility, nitrogen balance, rumen fermentation, microbiota and methane emissions in goats Xiumin Zhang Medrano, Rodolfo F. Min Wang Beauchemin, Karen A. Zhiyuan Ma Rong Wang Jiangnan Wen Lukuyu, Ben A. Zhiliang Tan rice goats nitrogen digestibility methane fermentation rumen straw urea effects rice straw nitrogen balance nitrate rumen fermentation Urea pretreatment is an efficient strategy to improve fiber digestibility of low quality roughages for ruminants. Nitrate and oil are usually used to inhibit enteric methane (CH4) emissions from ruminants. The objective of this study was to examine the combined effects of urea plus nitrate pretreated rice straw and corn oil supplementation to the diet on nutrient digestibility, nitrogen (N) balance, CH4 emissions, ruminal fermentation characteristics and microbiota in goats. Nine female goats were used in a triple 3 × 3 Latin Square design (27 d periods). The treatments were: control (untreated rice straw, no added corn oil), rice straw pretreated with urea and nitrate (34 and 4.7 g/kg of rice straw on a dry matter [DM] basis, respectively, UN), and UN diet supplemented with corn oil (15 g/kg soybean and 15 g/kg corn were replaced by 30 g/kg corn oil, DM basis, UNCO).Compared with control, UN increased neutral detergent fiber (NDF) digestibility (P < 0.001) and copies of protozoa (P < 0.001) and R. albus (P < 0.05) in the rumen, but decreased N retention (-21.2%, P < 0.001), dissolved hydrogen concentration (-22.8%, P < 0.001), molar proportion of butyrate (-18.2%, P < 0.05), (acetate + butyrate) to propionate ratio (P < 0.05) and enteric CH4 emissions (-10.2%, P < 0.05). In comparison with UN, UNCO increased N retention (+34.9%, P < 0.001) and decreased copies of protozoa (P < 0.001) and methanogens (P < 0.001). Compared with control, UNCO increased NDF digestibility (+8.3%, P < 0.001), reduced ruminal dissolved CH4 concentration (-24.4%, P < 0.001) and enteric CH4 emissions (-12.6%, P < 0.05).A combination of rice straw pretreated with urea plus nitrate and corn oil supplementation of the diet improved fiber digestibility and lowered enteric CH4 emissions without negative effects on N retention. These strategies improved the utilization of rice straw by goats. 2019-12 2023-03-10T14:32:56Z 2023-03-10T14:32:56Z Journal Article https://hdl.handle.net/10568/129280 en Open Access Springer Zhang, Xiu Min; Medrano, Rodolfo F.; Wang, Min; Beauchemin, Karen A.; Ma, Zhiyuan; Wang, Rong; Wen, Jiang Nan; Lukuyu, Ben A.; Tan, Zhiliang. 2019. Effects of urea plus nitrate pretreated rice straw and corn oil supplementation on fiber digestibility, nitrogen balance, rumen fermentation, microbiota and methane emissions in goats. Journal of Animal Science and Biotechnology 10: |
| spellingShingle | rice goats nitrogen digestibility methane fermentation rumen straw urea effects rice straw nitrogen balance nitrate rumen fermentation Xiumin Zhang Medrano, Rodolfo F. Min Wang Beauchemin, Karen A. Zhiyuan Ma Rong Wang Jiangnan Wen Lukuyu, Ben A. Zhiliang Tan Effects of urea plus nitrate pretreated rice straw and corn oil supplementation on fiber digestibility, nitrogen balance, rumen fermentation, microbiota and methane emissions in goats |
| title | Effects of urea plus nitrate pretreated rice straw and corn oil supplementation on fiber digestibility, nitrogen balance, rumen fermentation, microbiota and methane emissions in goats |
| title_full | Effects of urea plus nitrate pretreated rice straw and corn oil supplementation on fiber digestibility, nitrogen balance, rumen fermentation, microbiota and methane emissions in goats |
| title_fullStr | Effects of urea plus nitrate pretreated rice straw and corn oil supplementation on fiber digestibility, nitrogen balance, rumen fermentation, microbiota and methane emissions in goats |
| title_full_unstemmed | Effects of urea plus nitrate pretreated rice straw and corn oil supplementation on fiber digestibility, nitrogen balance, rumen fermentation, microbiota and methane emissions in goats |
| title_short | Effects of urea plus nitrate pretreated rice straw and corn oil supplementation on fiber digestibility, nitrogen balance, rumen fermentation, microbiota and methane emissions in goats |
| title_sort | effects of urea plus nitrate pretreated rice straw and corn oil supplementation on fiber digestibility nitrogen balance rumen fermentation microbiota and methane emissions in goats |
| topic | rice goats nitrogen digestibility methane fermentation rumen straw urea effects rice straw nitrogen balance nitrate rumen fermentation |
| url | https://hdl.handle.net/10568/129280 |
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