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

Enteric 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 ent...

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Autores principales:	Villanueva, Cristóbal, Ibrahim, Muhammad, Castillo, Cristina
Formato:	Artículo
Lenguaje:	Inglés
Publicado:	MDPI 2014
Materias:	HIBRIDOS HYBRIDS EMISION EMISSION ETAPA DE LA LACTANCIA LACTATION STAGE METANO METHANE COSTA RICA CROSSBREDS DRY MATTER INTAKE EMISSIONS INTENSITY METHANE CONVERSION FACTOR PUREBREDS
Acceso en línea:	https://repositorio.catie.ac.cr/handle/11554/118

id	RepoCATIE118
record_format	dspace
spelling	RepoCATIE1182023-03-04T01:00:35Z Enteric Methane Emissions in Dairy Cows with Different Genetic Groups in the Humid Tropics of Costa Rica Villanueva, Cristóbal Ibrahim, Muhammad Castillo, Cristina HIBRIDOS HYBRIDS EMISION EMISSION ETAPA DE LA LACTANCIA LACTATION STAGE METANO METHANE COSTA RICA CROSSBREDS DRY MATTER INTAKE EMISSIONS INTENSITY METHANE CONVERSION FACTOR PUREBREDS Enteric 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. 2014-10-17T05:39:16Z 2014-10-17T05:39:16Z 2023 Articulo 344214 https://repositorio.catie.ac.cr/handle/11554/118 openAccess en Animals https://doi.org/10.3390/ani13040730 11 páginas application/pdf MDPI
institution	Centro Agronómico Tropical de Investigación y Enseñanza
collection	Repositorio CATIE
language	Inglés
topic	HIBRIDOS HYBRIDS EMISION EMISSION ETAPA DE LA LACTANCIA LACTATION STAGE METANO METHANE COSTA RICA CROSSBREDS DRY MATTER INTAKE EMISSIONS INTENSITY METHANE CONVERSION FACTOR PUREBREDS
spellingShingle	HIBRIDOS HYBRIDS EMISION EMISSION ETAPA DE LA LACTANCIA LACTATION STAGE METANO METHANE COSTA RICA CROSSBREDS DRY MATTER INTAKE EMISSIONS INTENSITY METHANE CONVERSION FACTOR PUREBREDS Villanueva, Cristóbal Ibrahim, Muhammad Castillo, Cristina Enteric Methane Emissions in Dairy Cows with Different Genetic Groups in the Humid Tropics of Costa Rica
description	Enteric 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.
format	Artículo
author	Villanueva, Cristóbal Ibrahim, Muhammad Castillo, Cristina
author_facet	Villanueva, Cristóbal Ibrahim, Muhammad Castillo, Cristina
author_sort	Villanueva, Cristóbal
title	Enteric Methane Emissions in Dairy Cows with Different Genetic Groups in the Humid Tropics of Costa Rica
title_short	Enteric Methane Emissions in Dairy Cows with Different Genetic Groups in the Humid Tropics of Costa Rica
title_full	Enteric Methane Emissions in Dairy Cows with Different Genetic Groups in the Humid Tropics of Costa Rica
title_fullStr	Enteric Methane Emissions in Dairy Cows with Different Genetic Groups in the Humid Tropics of Costa Rica
title_full_unstemmed	Enteric Methane Emissions in Dairy Cows with Different Genetic Groups in the Humid Tropics of Costa Rica
title_sort	enteric methane emissions in dairy cows with different genetic groups in the humid tropics of costa rica
publisher	MDPI
publishDate	2014
url	https://repositorio.catie.ac.cr/handle/11554/118
work_keys_str_mv	AT villanuevacristobal entericmethaneemissionsindairycowswithdifferentgeneticgroupsinthehumidtropicsofcostarica AT ibrahimmuhammad entericmethaneemissionsindairycowswithdifferentgeneticgroupsinthehumidtropicsofcostarica AT castillocristina entericmethaneemissionsindairycowswithdifferentgeneticgroupsinthehumidtropicsofcostarica
_version_	1808116323501211648

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

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