Enteric Methane Emissions in Dairy Cows with Different Genetic Groups in the Humid Tropics of Costa Rica

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dc.creatorVillanueva, Cristóbal
dc.creatorIbrahim, Muhammad Akbar
dc.creatorCastillo, Cristina
dc.date2014-10-17T05:39:16Z
dc.date2014-10-17T05:39:16Z
dc.date2023
dc.date.accessioned2026-06-09T02:04:19Z
dc.descriptionEnteric methane (CH4) is one of the main greenhouse gases emitted in livestock production systems with ruminants. Among the options to reduce such emissions, animal genetics is one of the factors that is taking relevance in recent years. The aim of the present study was to assess the emission of enteric CH4 in dairy cows with different genetic backgrounds. Sixteen cows belonging to the following three genetic groups were selected for this study: seven F1 (50% Jersey X 50% Gyr), five Triple cross (50% Jersey X 31% Holstein X 19% Sahiwal) and four Jersey. Enteric CH4 emissions were measured in all cows for 15 months, at the middle of each month, using the SF6 technique. Enteric CH4 emissions did not differ (p > 0.05) among genetic groups, although it varied with the stage of lactation, due to differences in milk yield and dry matter intake (DMI). Pasture DMI and the intensity of CH4 emissions (g kg􀀀1 DMI) differed (p < 0.05) between dry and lactating cows, with higher DMI in the lactation period, while CH4 emission intensity was higher for dry cows. Cows with the highest proportion of Bos taurus genes presented a higher annual mean methane conversion factor (Ym), with 7.22, 7.05 and 5.90% for the Triple cross, purebred Jersey and F1, respectively. In conclusion, non-significant differences in enteric CH4 emissions and Ym were detected among dairy cows with different genetic backgrounds. However, F1 cows tended to show lower enteric CH4 emission and Ym, compared to those with more Bos taurus genes.
dc.format11 páginas
dc.formatapplication/pdf
dc.identifier344214
dc.identifierhttps://repositorio.catie.ac.cr/handle/11554/118
dc.identifieropenAccess
dc.identifier.urihttp://hdl.handle.net/123456789/2026
dc.languageen
dc.publisherMDPI
dc.relationAnimals
dc.relationhttps://doi.org/10.3390/ani13040730
dc.subjectHIBRIDOS
dc.subjectHYBRIDS
dc.subjectEMISION
dc.subjectEMISSION
dc.subjectETAPA DE LA LACTANCIA
dc.subjectLACTATION STAGE
dc.subjectMETANO
dc.subjectMETHANE
dc.subjectCOSTA RICA
dc.subjectCROSSBREDS
dc.subjectDRY MATTER INTAKE
dc.subjectEMISSIONS INTENSITY
dc.subjectMETHANE CONVERSION FACTOR
dc.subjectPUREBREDS
dc.titleEnteric Methane Emissions in Dairy Cows with Different Genetic Groups in the Humid Tropics of Costa Rica
dc.typeArticulo

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