Methane production by two breeds of cattle in tropical conditions

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dc.creatorPedro Henrique de Araújo Carvalho
dc.creatorEloisa de Oliveira Simões Saliba
dc.creatorLucio Carlos Gonçalves
dc.creatorIran Borges
dc.creatorHelena Ferreira Lage
dc.creatorRodrigo Libério Araújo Palhano
dc.creatorDiogo Gonzaga Jaime
dc.creatorAna Luiza Costa Cruz Borges
dc.creatorRicardo Reis e Silva
dc.creatorJosé Reinaldo Mendes Ruas
dc.creatorAntônio Último de Carvalho
dc.date.accessioned2024-04-25T19:26:58Z
dc.date.accessioned2025-09-09T00:20:19Z
dc.date.available2024-04-25T19:26:58Z
dc.date.issued2017-09-27
dc.format.mimetypepdf
dc.identifier.doihttp://dx.doi.org/10.16966/2576-6457.102
dc.identifier.issn2576-6457
dc.identifier.urihttps://hdl.handle.net/1843/67728
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofJournal of Animal Science and Research
dc.rightsAcesso Aberto
dc.subjectGado Leiteiro
dc.subjectMetano
dc.subjectRespiração - Medição
dc.subjectCalorimetria
dc.subjectRuminante
dc.subject.otherheifers
dc.subject.otherenergy metabolism
dc.titleMethane production by two breeds of cattle in tropical conditions
dc.typeArtigo de periódico
local.citation.epage4
local.citation.issue1
local.citation.spage1
local.citation.volume1
local.description.resumoThis work aimed to measure methane emission by the most frequently used cattle for milk production in Brazil, Gyr and F1 Holstein x Gyr heifers feeding Tifton 85 (cynodont spp.) hay. Methane production was measured by a respirometric technique in six F1 Holstein x Gyr and six Gyr heifers fed Tifton 85 hay (Cynodon spp.) in a tie stall system consuming. After 21 adaptation days on feeding, heifers weighed 450kg and an apparent digestibility assay was performed. Feed intake and faecal production were measured for five days by total collection. Animals were housed for 24 hours in the respirometric chamber (open circuit type) receiving the experimental diet to quantify methane emission. Although dry matter (DM) intake was higher for crossbred heifers, nutrients digestibility was similar between breeds. Related to diet characteristics methane production was similar between genetic groups, with average values of 26.4 L methane/kg dry matter intake (L/kg DM), 43.2 L/kg digestible dry matter, 35.716 L/kg neutral detergent fiber, 57.3 L/kg digestible neutral detergent fiber, 29.5 L/kg organic matter and 45 L/kg digestible organic matter. Daily Methane production of crossbred heifers was higher than Gyr (173.76 versus136.77 L/d), due to higher DM intake of these animals. More productive animals may produce more methane per day because of the higher consumption of DM, so methane production data should be analyzed by relative and not absolute numbers.
local.publisher.countryBrasil
local.publisher.departmentVET - DEPARTAMENTO DE ZOOTECNIA
local.publisher.initialsUFMG
local.url.externahttps://sciforschenonline.org/journals/animal-science-research/JASR-1-102.php

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