Nutritional Quality, Voluntary Intake and Enteric Methane Emissions of Diets Based on Novel Cayman Grass and Its Associations With Two Leucaena Shrub Legumes
Methane (CH4) emissions from enteric fermentation in cattle are an important source of greenhouse gases, accounting for about 40% of all agricultural emissions. Diet quality plays a fundamental role in determining the magnitude of CH4 emissions. Specifically, the inclusion of feeds with high digesti...
| Autores principales: | , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
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Frontiers Media
2020
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| Acceso en línea: | https://hdl.handle.net/10568/109998 |
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| author | Gaviria Uribe, Xiomara Bolívar Vergara, Diana María Rosenstock, Todd S. Molina Botero, Isabel Cristina Chirinda, Ngonidzashe Barahona Rosales, Rolando Arango, Jacobo |
| author_browse | Arango, Jacobo Barahona Rosales, Rolando Bolívar Vergara, Diana María Chirinda, Ngonidzashe Gaviria Uribe, Xiomara Molina Botero, Isabel Cristina Rosenstock, Todd S. |
| author_facet | Gaviria Uribe, Xiomara Bolívar Vergara, Diana María Rosenstock, Todd S. Molina Botero, Isabel Cristina Chirinda, Ngonidzashe Barahona Rosales, Rolando Arango, Jacobo |
| author_sort | Gaviria Uribe, Xiomara |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Methane (CH4) emissions from enteric fermentation in cattle are an important source of greenhouse gases, accounting for about 40% of all agricultural emissions. Diet quality plays a fundamental role in determining the magnitude of CH4 emissions. Specifically, the inclusion of feeds with high digestibility and nutritional value have been reported to be a viable option for reducing CH4emissions and, simultaneously, increase animal productivity. The present study aimed to evaluate the effect of the nutritional composition and voluntary intake of diets based on tropical forages upon CH4 emissions from zebu steers. Five treatments (diets) were evaluated: Cay1: Urochloa hybrid cv. Cayman (harvested after 65 days of regrowth: low quality); Cay2: cv. Cayman harvested after 45 days of regrowth; CayLl: cv. Cayman + Leucaena leucocephala; CayLd: cv. Cayman + Leucaena diversifolia; Hay: Dichantium aristatum hay as a comparator of common naturalized pasture. For each diet representing different levels of intensification (naturalized pasture, improved pasture, and silvopastoral systems), CH4 emissions were measured using the polytunnel technique with four zebu steers housed in individual chambers. The CH4 accumulated was monitored using an infrared multigas analyzer, and the voluntary forage intake of each animal was calculated. Dry matter intake (DMI,% of body weight) ranged between 0.77 and 2.94 among diets offered. Emissions of CH4 per kg of DMI were significantly higher (P<0.0001) in Cay1 (60.4 g), compared to other treatments. Diets that included Leucaena forage legumes had generally higher crude protein contents and higher DMI. Cay1 and Hay which had low protein content and digestibility had a higher CH4 emission intensity (per unit live weight gain) compared to Cay2, CayLl and CayLd. Our results suggest that grass consumed after a regrowth period of 45 days results in lower CH4emissions intensities compared to those observed following a regrowth period of 65 days. Diets with Leucaena inclusion showed advantages in nutrient intake that are reflected in greater live weight gains of cattle. Consequently, the intensity of the emissions generated in the legume-based systems were lower suggesting that they are a good option for achieving the emission reduction goals of sustainable tropical cattle production. |
| format | Journal Article |
| id | CGSpace109998 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Frontiers Media |
| publisherStr | Frontiers Media |
| record_format | dspace |
| spelling | CGSpace1099982025-12-08T10:29:22Z Nutritional Quality, Voluntary Intake and Enteric Methane Emissions of Diets Based on Novel Cayman Grass and Its Associations With Two Leucaena Shrub Legumes Gaviria Uribe, Xiomara Bolívar Vergara, Diana María Rosenstock, Todd S. Molina Botero, Isabel Cristina Chirinda, Ngonidzashe Barahona Rosales, Rolando Arango, Jacobo climate change agriculture food security cattle greenhouse gas emissions livestock pastures forage Methane (CH4) emissions from enteric fermentation in cattle are an important source of greenhouse gases, accounting for about 40% of all agricultural emissions. Diet quality plays a fundamental role in determining the magnitude of CH4 emissions. Specifically, the inclusion of feeds with high digestibility and nutritional value have been reported to be a viable option for reducing CH4emissions and, simultaneously, increase animal productivity. The present study aimed to evaluate the effect of the nutritional composition and voluntary intake of diets based on tropical forages upon CH4 emissions from zebu steers. Five treatments (diets) were evaluated: Cay1: Urochloa hybrid cv. Cayman (harvested after 65 days of regrowth: low quality); Cay2: cv. Cayman harvested after 45 days of regrowth; CayLl: cv. Cayman + Leucaena leucocephala; CayLd: cv. Cayman + Leucaena diversifolia; Hay: Dichantium aristatum hay as a comparator of common naturalized pasture. For each diet representing different levels of intensification (naturalized pasture, improved pasture, and silvopastoral systems), CH4 emissions were measured using the polytunnel technique with four zebu steers housed in individual chambers. The CH4 accumulated was monitored using an infrared multigas analyzer, and the voluntary forage intake of each animal was calculated. Dry matter intake (DMI,% of body weight) ranged between 0.77 and 2.94 among diets offered. Emissions of CH4 per kg of DMI were significantly higher (P<0.0001) in Cay1 (60.4 g), compared to other treatments. Diets that included Leucaena forage legumes had generally higher crude protein contents and higher DMI. Cay1 and Hay which had low protein content and digestibility had a higher CH4 emission intensity (per unit live weight gain) compared to Cay2, CayLl and CayLd. Our results suggest that grass consumed after a regrowth period of 45 days results in lower CH4emissions intensities compared to those observed following a regrowth period of 65 days. Diets with Leucaena inclusion showed advantages in nutrient intake that are reflected in greater live weight gains of cattle. Consequently, the intensity of the emissions generated in the legume-based systems were lower suggesting that they are a good option for achieving the emission reduction goals of sustainable tropical cattle production. 2020-10-20 2020-10-27T22:42:42Z 2020-10-27T22:42:42Z Journal Article https://hdl.handle.net/10568/109998 en Open Access Frontiers Media Gaviria-Uribe X, Bolivar DM, Rosenstock TS, Molina-Botero IC, Chirinda N, Barahona R, Arango J. 2020. Nutritional Quality, Voluntary Intake and Enteric Methane Emissions of Diets Based on Novel CaymanGrass and Its Associations With Two Leucaena Shrub Legumes. Frontiers in Veterinary Science 7:579189. |
| spellingShingle | climate change agriculture food security cattle greenhouse gas emissions livestock pastures forage Gaviria Uribe, Xiomara Bolívar Vergara, Diana María Rosenstock, Todd S. Molina Botero, Isabel Cristina Chirinda, Ngonidzashe Barahona Rosales, Rolando Arango, Jacobo Nutritional Quality, Voluntary Intake and Enteric Methane Emissions of Diets Based on Novel Cayman Grass and Its Associations With Two Leucaena Shrub Legumes |
| title | Nutritional Quality, Voluntary Intake and Enteric Methane Emissions of Diets Based on Novel Cayman Grass and Its Associations With Two Leucaena Shrub Legumes |
| title_full | Nutritional Quality, Voluntary Intake and Enteric Methane Emissions of Diets Based on Novel Cayman Grass and Its Associations With Two Leucaena Shrub Legumes |
| title_fullStr | Nutritional Quality, Voluntary Intake and Enteric Methane Emissions of Diets Based on Novel Cayman Grass and Its Associations With Two Leucaena Shrub Legumes |
| title_full_unstemmed | Nutritional Quality, Voluntary Intake and Enteric Methane Emissions of Diets Based on Novel Cayman Grass and Its Associations With Two Leucaena Shrub Legumes |
| title_short | Nutritional Quality, Voluntary Intake and Enteric Methane Emissions of Diets Based on Novel Cayman Grass and Its Associations With Two Leucaena Shrub Legumes |
| title_sort | nutritional quality voluntary intake and enteric methane emissions of diets based on novel cayman grass and its associations with two leucaena shrub legumes |
| topic | climate change agriculture food security cattle greenhouse gas emissions livestock pastures forage |
| url | https://hdl.handle.net/10568/109998 |
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