Concentrate supplementation on milk yield, methane and CO2 production in crossbred dairy cows grazing in tropical climate regions
| Autor: | Xochitemol Hernandez Arni, Lizbeth Esmeralda Robles Jimenez, Manuel González-Ronquillo, Luis Corona, Epigmenio Castillo-Gallegos, Octavio Alonso Castelán Ortega, Jorge Osorio Avalos, Mohammed Benaouda |
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| Přispěvatelé: | Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México (UNAM), AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Unité Mixte de Recherche sur les Herbivores - UMR 1213 (UMRH), VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Atmospheric Science Supplementation Crossbreed [SDV.SA.ZOO]Life Sciences [q-bio]/Agricultural sciences/Zootechny 01 natural sciences Methane 03 medical and health sciences chemistry.chemical_compound Animal science Milk yield Tropical pastures 010608 biotechnology Tropical climate Grazing Production (economics) 2. Zero hunger 0303 health sciences Ecology 030306 microbiology N2O chemistry 13. Climate action [SDV.SA.SPA]Life Sciences [q-bio]/Agricultural sciences/Animal production studies Environmental science Animal Science and Zoology |
| Zdroj: | Journal of Animal Behaviour and Biometeorology Journal of Animal Behaviour and Biometeorology, 2021, 9 (2), pp.1-8. ⟨10.31893/jabb.21018⟩ |
| ISSN: | 2318-1265 |
| DOI: | 10.31893/jabb.21018 |
| Popis: | International audience; The objective of this study was to evaluate the level of concentrate supplementation on the production and chemical composition of milk from 12 crossbred F1 dual-purpose cows (½ Bos taurus – ½ Bos indicus) and estimate the emission of CH4, N2O, and CO2 gases. The study included 12 crossbred F1 dual-purpose cows over 60 days of lactation. The cows grazed on 28% tropical native grassland and 72% Brachiaria spp. and Cynodon neumfluensis, supplemented with 0, 150, 300, and 450g of concentrate per kg daily milk production, during three experimental periods of 15 days each in a crossover design. Pasture and concentrate samples were collected and were analyzed for dry matter, crude protein, neutral detergent fiber, and acid detergent fiber. Milk production (kg d-1) was recorded daily, nitrous oxide (N2O), and emissions from excreta and daily CH4 production were calculated. Results were analyzed with the SAS MIXED procedure. Concentrate supplementation in tropical crossbred dairy cows did not improve milk yield but increased CH4 and N2O production (P < 0.0001) per cow as the concentrate increased in the diet; the Ym factor from the tropical region yielded less CH4 than the IPCC Ym model (P < 0.0001). In conclusion, the calculation of CH4 using specific emission factors for the tropical climate region is better than the IPCC default emission factors in order not to overestimate the CH4 emissions. |
| Databáze: | OpenAIRE |
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