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dc.contributor.authorMÉO FILHO, P.eng
dc.contributor.authorBERNDT, A.eng
dc.contributor.authorMARCONDES, C. R.eng
dc.contributor.authorPEDROSO, A. de F.eng
dc.contributor.authorSAKAMOTO, L. S.eng
dc.contributor.authorBOAS, D. F. V.eng
dc.contributor.authorRODRIGUES, P. H. M.eng
dc.contributor.authorRIVERO, M. J.eng
dc.contributor.authorBUENO, I. C. S.eng
dc.date.accessioned2020-04-04T00:50:14Z-
dc.date.available2020-04-04T00:50:14Z-
dc.date.created2020-04-03
dc.date.issued2020
dc.identifier.citationAnimals, v. 10, n. 303, 2020.eng
dc.identifier.issn2076-2615eng
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1121538-
dc.descriptionThe present study aimed to investigate whether different lines of a composite breed (5/8 Charolais × 3/8 Zebu), formed at different times, and genetically improved, would result in differences in animal performance, enteric methane emissions, and carcass traits. Forty?six Canchim steers (15 months, 280 ± 33 kg liveweight) from three different lines were used: old, new, and their cross. These three breed lines were considered the treatments (arranged in four randomized blocks based on initial liveweight) and were evaluated under grazing and feedlot conditions in relation to the performance and emission of enteric methane. During the grazing period, the new line was found to be superior to the old only in relation to the average daily liveweight gain (0.692 vs. 0.547 kg/day), and with no differences in relation to the cross line (0.692 vs. 0.620). In the feedlot finishing phase, only the average daily liveweight gain was significantly higher in the new line compared to the cross and old line (1.44 vs. 1.32 and 1.23 kg/day). The new and cross lines demonstrated higher dry matter intake when compared to the old line (10.25 and 10.42 vs. 9.11 kg/day), with the crossline Animals 2020, 10, 303 2 of 15 animals demonstrating the best feed conversion. The new line showed higher enteric methane emissions compared to the old line (178 vs. 156 g/day). The line had an effect on the carcass dressing of the animals, with greater fat thickness in carcasses from the new and cross lines than the old line (4.4 and 3.8 vs. 3.2 mm). Canchim cattle selected for improved productive performance characteristics does not guarantee animals with lower methane emissions under grazing conditions; while in feedlots, can lead to increased daily feed consumption, and hence, to higher emissions of methane.eng
dc.language.isoengeng
dc.rightsopenAccesseng
dc.titleMethane emissions, performance and carcass characteristics of different lines of beef steers reared on pasture and finished in feedlot.eng
dc.typeArtigo de periódicoeng
dc.date.updated2020-04-20T11:11:11Z
dc.subject.nalthesaurusBeef cattleeng
dc.subject.nalthesaurusGeneticseng
dc.subject.nalthesaurusGreenhouse gaseseng
dc.subject.nalthesaurusGrowth performanceeng
dc.subject.nalthesaurusNutritioneng
dc.format.extent215 p.eng
riaa.ainfo.id1121538eng
riaa.ainfo.lastupdate2020-04-20 -03:00:00
dc.identifier.doi10.3390/ani10020303eng
dc.contributor.institutionPaulo Méo?Filho, USP; ALEXANDRE BERNDT, CPPSE; CINTIA RIGHETTI MARCONDES, CPPSE; ANDRE DE FARIA PEDROSO, CPPSE; Leandro S. Sakamoto, USP; Daniella Flavia Vilas Boas, UNEMAT; Paulo H. M. Rodrigues, USP; M. Jordana Rivero, Rothamsted Research; Ives C. S. Bueno, USP.eng
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