Requirements and energy efficiency of Pelibuey and Katahdin non pregnant, non lactating ewes in Yucatan, Mexico
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| Format: | Artículo científico |
| Language: | en |
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Universidad de Córdoba
2018
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| _version_ | 1876475872595148800 |
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| author | José Cárdenas M |
| author_facet | José Cárdenas M |
| contents | Requirements and energy efficiency of Pelibuey and Katahdin non pregnant, non lactating ewes in Yucatan, Mexico José Cárdenas M Pablo Duarte A Dahaivis Mena A Olivier Ramos T Veterinaria fat ewes Intake production weight increment Objective. To estimate metabolizable energy requirements for maintenance (MEm), energy efficiency of weight gain (EEWG) and fat thickness, in Pelibuey and Katahdin ewes in Yucatan, Mexico. Material and method. Eight non pregnant, non lactating, multiparous ewes, were feed at three intake levels with a diet containing 2.0 Mcal/Kg-1 of ME and 11 % of CP. Feed intake was measured daily, ewes weight and thickness of subcutaneous fat (SF) were determined every 14 days. The EMm was estimated by regressing values of live weight against metabolizable energy intake (MEI), EEWG was estimate as gram of weight gain per Mcal of MEI. Results. There were no differences between breeds in MEm (97±4 and 110±4 kcal/Kg0.75, for Pelibuey and Katahdin) and EEWG (58±8 and 63±8 g/Mcal of MEI, for Pelibuey and Katahdin); differences were found in SF (6.1±0.2 and 4.9±0.2 mm, for Pelibuey and Katahdin). Conclusions. The energy requirements for maintenance were similar in Pelibuey and Katahdin ewes in Yucatan, Mexico. 2018 artículo científico 0122-0268 https://www.redalyc.org/articulo.oa?id=69356053002 https://www.redalyc.org/journal/693/69356053002/ https://www.redalyc.org/journal/693/69356053002/html/ https://www.redalyc.org/journal/693/69356053002/69356053002.epub https://www.redalyc.org/journal/693/69356053002/movil https://doi.org/10.21897/rmvz.1333 en http://www.redalyc.org/revista.oa?id=693 Revista MVZ Córdoba application/pdf Universidad de Córdoba Revista MVZ Córdoba (Colombia) Num.2 Vol.23 |
| format | Artículo científico |
| id | redalyc_69356053002 |
| institution | Redalyc |
| language | en |
| publishDate | 2018 |
| publisher | Universidad de Córdoba |
| spellingShingle | Requirements and energy efficiency of Pelibuey and Katahdin non pregnant, non lactating ewes in Yucatan, Mexico José Cárdenas M Veterinaria fat ewes Intake production weight increment Requirements and energy efficiency of Pelibuey and Katahdin non pregnant, non lactating ewes in Yucatan, Mexico José Cárdenas M Pablo Duarte A Dahaivis Mena A Olivier Ramos T Veterinaria fat ewes Intake production weight increment Objective. To estimate metabolizable energy requirements for maintenance (MEm), energy efficiency of weight gain (EEWG) and fat thickness, in Pelibuey and Katahdin ewes in Yucatan, Mexico. Material and method. Eight non pregnant, non lactating, multiparous ewes, were feed at three intake levels with a diet containing 2.0 Mcal/Kg-1 of ME and 11 % of CP. Feed intake was measured daily, ewes weight and thickness of subcutaneous fat (SF) were determined every 14 days. The EMm was estimated by regressing values of live weight against metabolizable energy intake (MEI), EEWG was estimate as gram of weight gain per Mcal of MEI. Results. There were no differences between breeds in MEm (97±4 and 110±4 kcal/Kg0.75, for Pelibuey and Katahdin) and EEWG (58±8 and 63±8 g/Mcal of MEI, for Pelibuey and Katahdin); differences were found in SF (6.1±0.2 and 4.9±0.2 mm, for Pelibuey and Katahdin). Conclusions. The energy requirements for maintenance were similar in Pelibuey and Katahdin ewes in Yucatan, Mexico. 2018 artículo científico 0122-0268 https://www.redalyc.org/articulo.oa?id=69356053002 https://www.redalyc.org/journal/693/69356053002/ https://www.redalyc.org/journal/693/69356053002/html/ https://www.redalyc.org/journal/693/69356053002/69356053002.epub https://www.redalyc.org/journal/693/69356053002/movil https://doi.org/10.21897/rmvz.1333 en http://www.redalyc.org/revista.oa?id=693 Revista MVZ Córdoba application/pdf Universidad de Córdoba Revista MVZ Córdoba (Colombia) Num.2 Vol.23 |
| title | Requirements and energy efficiency of Pelibuey and Katahdin non pregnant, non lactating ewes in Yucatan, Mexico |
| topic | Veterinaria fat ewes Intake production weight increment |
| url | https://www.redalyc.org/articulo.oa?id=69356053002 https://www.redalyc.org/journal/693/69356053002/ https://www.redalyc.org/journal/693/69356053002/html/ https://www.redalyc.org/journal/693/69356053002/69356053002.epub https://www.redalyc.org/journal/693/69356053002/movil https://doi.org/10.21897/rmvz.1333 |