Enteric methane emissions by young Brahman bulls grazing tropical pastures at different rainfall seasons in the Peruvian jungle

Autor:	Medardo Antonio Díaz-Céspedes, Carlos Gómez, José Eduard Hernández-Guevara
Rok vydání:	2021
Předmět:	Wet season geography geography.geographical_feature_category biology ved/biology Brahman ved/biology.organism_classification_rank.species Echinochloa biology.organism_classification Kudzu Pasture Animal science Food Animals Grazing Dry season Pueraria phaseoloides Animal Science and Zoology
Zdroj:	Tropical Animal Health and Production. 53
ISSN:	1573-7438 0049-4747
DOI:	10.1007/s11250-021-02871-4
Popis:	The aim of this research was to measure enteric methane (CH4) emissions by young Brahman bulls grazing tropical pastures at different rainfall seasons in the Peruvian jungle. Fourteen 1.5-year-old, young bulls (280 kg ± 18 kg BW) were grazed on tropical grasses and legumes dominated by German grass [Echinochloa polystachya (Kunth) Hitch.] and minor proportion of Torourco grass [Paspalum conjugatum (P.J. Bergius) Roxb] and Leguminous Calopo (Calopogonium mucunoides Desv.) and Kudzu [Pueraria phaseoloides (Roxb.) Benth]. Enteric CH4 emission was measured by the sulfur hexafluoride (SF6) tracer-gas technique. Organic matter intake (OMI) was determined from organic matter digestibility (OMD) using a fecal protein crude index and fecal output estimated by the dosage of external markers. There was a difference in OMD between seasons (68 and 66% for the dry and rainy seasons, respectively; P
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f8e39640d3ce7c0e40acc9d4daab5131 https://doi.org/10.1007/s11250-021-02871-4 Zobrazit plný text záznamu Full text from SpringerLink