Dietary supplementation improves animal performance and reduces methane emission intensity in young llamas grazing natural forages
The aim of this study was to evaluate the effects of concentrate supplementation on animal performance, enteric methane (CH4) emissions, and forestomach (C1-C2 and C3) fermentative parameters of young llamas grazing on natural forage. Eighteen male llamas were assigned to two treatments, with 9 anim...
| Autores principales: | , , , , , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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Elsevier
2025
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| Acceso en línea: | http://hdl.handle.net/20.500.12123/21959 https://www.sciencedirect.com/science/article/abs/pii/S0921448825000392 https://doi.org/10.1016/j.smallrumres.2025.107466 |
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| author | Ceron Cucchi, Maria Esperanza Gere, José Ignacio Chavarria, Nicolás José Ramos, Nadia Elizabeth Takahashi, Lumena S. Montiel, María Delfina Acuña, Francisco Antonio Ortiz Chura, Abimael Cravero, Silvio Lorenzo Pedro |
| author_browse | Acuña, Francisco Antonio Ceron Cucchi, Maria Esperanza Chavarria, Nicolás José Cravero, Silvio Lorenzo Pedro Gere, José Ignacio Montiel, María Delfina Ortiz Chura, Abimael Ramos, Nadia Elizabeth Takahashi, Lumena S. |
| author_facet | Ceron Cucchi, Maria Esperanza Gere, José Ignacio Chavarria, Nicolás José Ramos, Nadia Elizabeth Takahashi, Lumena S. Montiel, María Delfina Acuña, Francisco Antonio Ortiz Chura, Abimael Cravero, Silvio Lorenzo Pedro |
| author_sort | Ceron Cucchi, Maria Esperanza |
| collection | INTA Digital |
| description | The aim of this study was to evaluate the effects of concentrate supplementation on animal performance, enteric methane (CH4) emissions, and forestomach (C1-C2 and C3) fermentative parameters of young llamas grazing on natural forage. Eighteen male llamas were assigned to two treatments, with 9 animals per treatment. The treatments were forage (F) with free access to natural grassland primarily composed of Festuca spp., and F plus supplement (FS). Supplementation with ground corn and soybean expeller (80:20 ratio on DM basis) was 1.5 % based on body weight for 35 days. The total dry matter intake (DMI), CH4 emissions (g/d), and CH4 yield (g/kg DMI) did not differ between diets. However, CH4 intensity (g/kg average daily gain) was significantly reduced (-48 %) in FS than in the F diet. The pH, total volatile fatty acids, and ammonia nitrogen concentrations in the C1-C2 did not differ between diets. However, the proportion of acetate and the acetate to propionate ratio decreased but propionate and butyrate were increased in the FS than in the F diet (P < 0.05). Whereas in C3, only butyrate increased in the FS diet than in the F diet (P < 0.05). Total bacteria and methanogen populations did not differ between treatments. Nevertheless, in C1-C2 and C3, the abundance of protozoa did differ statistically (P = 0.041 and P = 0.046, respectively), in the FS diet than in the F diet. In conclusion, concentrate supplementation increased propionate and butyrate proportions of forestomach contents which lead to improve animal performance and reduced CH4 emission intensity. |
| format | Artículo |
| id | INTA21959 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA219592025-04-08T14:31:18Z Dietary supplementation improves animal performance and reduces methane emission intensity in young llamas grazing natural forages Ceron Cucchi, Maria Esperanza Gere, José Ignacio Chavarria, Nicolás José Ramos, Nadia Elizabeth Takahashi, Lumena S. Montiel, María Delfina Acuña, Francisco Antonio Ortiz Chura, Abimael Cravero, Silvio Lorenzo Pedro Microbial Flora Food Supplements Llamas Grazing Methane Camelids South America Flora Microbiana Suplementos Alimentarios Llama Pastoreo Metano Camélidos América del Sur Natural Forages Forrajes Naturales The aim of this study was to evaluate the effects of concentrate supplementation on animal performance, enteric methane (CH4) emissions, and forestomach (C1-C2 and C3) fermentative parameters of young llamas grazing on natural forage. Eighteen male llamas were assigned to two treatments, with 9 animals per treatment. The treatments were forage (F) with free access to natural grassland primarily composed of Festuca spp., and F plus supplement (FS). Supplementation with ground corn and soybean expeller (80:20 ratio on DM basis) was 1.5 % based on body weight for 35 days. The total dry matter intake (DMI), CH4 emissions (g/d), and CH4 yield (g/kg DMI) did not differ between diets. However, CH4 intensity (g/kg average daily gain) was significantly reduced (-48 %) in FS than in the F diet. The pH, total volatile fatty acids, and ammonia nitrogen concentrations in the C1-C2 did not differ between diets. However, the proportion of acetate and the acetate to propionate ratio decreased but propionate and butyrate were increased in the FS than in the F diet (P < 0.05). Whereas in C3, only butyrate increased in the FS diet than in the F diet (P < 0.05). Total bacteria and methanogen populations did not differ between treatments. Nevertheless, in C1-C2 and C3, the abundance of protozoa did differ statistically (P = 0.041 and P = 0.046, respectively), in the FS diet than in the F diet. In conclusion, concentrate supplementation increased propionate and butyrate proportions of forestomach contents which lead to improve animal performance and reduced CH4 emission intensity. Instituto de Patobiología Fil: Ceron Cucchi, Maria Esperanza. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patobiología Veterinaria; Argentina Fil: Ceron Cucchi, Maria Esperanza. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Ceron Cucchi, Maria Esperanza. Universidad Tecnológica Nacional. Unidad de Investigación y Desarrollo de las Ingenierías; Argentina Fil: Gere, José. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Gere, José. Universidad Tecnológica Nacional. División Investigación y Desarrollo de Ingenierías; Argentina Fil: Chavarria, Nicolás José. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Abra Pampa; Argentina Fil: Ramos, Nadia Elizabeth. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Abra Pampa; Argentina Fil: Takahashi, Lumena S. University of Sao Paulo. Centre for Nuclear Energy in Agriculture. Laboratory of Animal Nutrition; Brasil Fil: Montiel, María Delfina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina Fil: Acuña, Francisco. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Abra Pampa; Argentina Fil: Ortiz Chura, Abimael. Institut National de Recherche pour l'agriculture, l'alimentation et l'environnement (INRAE). Université Clermont Auvergne; Francia Fil: Cravero, Silvio Lorenzo Pedro. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Agrobiotecnología y Biología Molecular; Argentina Fil: Cravero, Silvio Lorenzo Pedro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina 2025-04-08T14:12:48Z 2025-04-08T14:12:48Z 2025-04 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/21959 https://www.sciencedirect.com/science/article/abs/pii/S0921448825000392 0921-4488 https://doi.org/10.1016/j.smallrumres.2025.107466 eng info:eu-repograntAgreement/INTA/2023-PE-L03-I058, Intensificación sostenible de los agro ecosistemas de la región chaqueña en el contexto climático actual info:eu-repograntAgreement/INTA/2023-PD-L01-I106, Plagas y enfermedades emergentes, cuarentenarias y limitantes en cultivos frutícolas: estrategias para mejorar su prevención, detección precoz y control info:eu-repo/semantics/restrictedAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Elsevier Small Ruminant Research 245 : 107466 (April 2025) |
| spellingShingle | Microbial Flora Food Supplements Llamas Grazing Methane Camelids South America Flora Microbiana Suplementos Alimentarios Llama Pastoreo Metano Camélidos América del Sur Natural Forages Forrajes Naturales Ceron Cucchi, Maria Esperanza Gere, José Ignacio Chavarria, Nicolás José Ramos, Nadia Elizabeth Takahashi, Lumena S. Montiel, María Delfina Acuña, Francisco Antonio Ortiz Chura, Abimael Cravero, Silvio Lorenzo Pedro Dietary supplementation improves animal performance and reduces methane emission intensity in young llamas grazing natural forages |
| title | Dietary supplementation improves animal performance and reduces methane emission intensity in young llamas grazing natural forages |
| title_full | Dietary supplementation improves animal performance and reduces methane emission intensity in young llamas grazing natural forages |
| title_fullStr | Dietary supplementation improves animal performance and reduces methane emission intensity in young llamas grazing natural forages |
| title_full_unstemmed | Dietary supplementation improves animal performance and reduces methane emission intensity in young llamas grazing natural forages |
| title_short | Dietary supplementation improves animal performance and reduces methane emission intensity in young llamas grazing natural forages |
| title_sort | dietary supplementation improves animal performance and reduces methane emission intensity in young llamas grazing natural forages |
| topic | Microbial Flora Food Supplements Llamas Grazing Methane Camelids South America Flora Microbiana Suplementos Alimentarios Llama Pastoreo Metano Camélidos América del Sur Natural Forages Forrajes Naturales |
| url | http://hdl.handle.net/20.500.12123/21959 https://www.sciencedirect.com/science/article/abs/pii/S0921448825000392 https://doi.org/10.1016/j.smallrumres.2025.107466 |
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