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Registro Completo |
Biblioteca(s): |
Embrapa Pecuária Sudeste. |
Data corrente: |
03/04/2020 |
Data da última atualização: |
20/04/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
MÉO FILHO, P.; BERNDT, A.; MARCONDES, C. R.; PEDROSO, A. de F.; SAKAMOTO, L. S.; BOAS, D. F. V.; RODRIGUES, P. H. M.; RIVERO, M. J.; BUENO, I. C. S. |
Afiliação: |
Paulo 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. |
Título: |
Methane emissions, performance and carcass characteristics of different lines of beef steers reared on pasture and finished in feedlot. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Animals, v. 10, n. 303, 2020. |
Páginas: |
15 p. |
ISSN: |
2076-2615 |
DOI: |
10.3390/ani10020303 |
Idioma: |
Inglês |
Conteúdo: |
The 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. MenosThe 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 t... Mostrar Tudo |
Thesaurus Nal: |
Beef cattle; Genetics; Greenhouse gases; Growth performance; Nutrition. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/212160/1/MethaneEmissionsPerformance.pdf
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Marc: |
LEADER 02707naa a2200313 a 4500 001 2121538 005 2020-04-20 008 2020 bl uuuu u00u1 u #d 022 $a2076-2615 024 7 $a10.3390/ani10020303$2DOI 100 1 $aMÉO FILHO, P. 245 $aMethane emissions, performance and carcass characteristics of different lines of beef steers reared on pasture and finished in feedlot.$h[electronic resource] 260 $c2020 300 $a15 p. 520 $aThe 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. 650 $aBeef cattle 650 $aGenetics 650 $aGreenhouse gases 650 $aGrowth performance 650 $aNutrition 700 1 $aBERNDT, A. 700 1 $aMARCONDES, C. R. 700 1 $aPEDROSO, A. de F. 700 1 $aSAKAMOTO, L. S. 700 1 $aBOAS, D. F. V. 700 1 $aRODRIGUES, P. H. M. 700 1 $aRIVERO, M. J. 700 1 $aBUENO, I. C. S. 773 $tAnimals$gv. 10, n. 303, 2020.
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Embrapa Pecuária Sudeste (CPPSE) |
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1. | | ARROUAYS, D.; LEENAARS, J. G. B.; RICHER-DE-FORGES, A. C.; ADHIKARI, K.; BALLABIO, C.; GREVE, M.; GRUNDY, M.; GUERRERO, E.; HEMPEL, J.; HENGL, T.; HEUVELINK, G.; BATJES, N.; CARVALHO, E.; HARTEMINK, A.; HEWITT, A.; HONG, S.-Y.; KRASILNIKOV, P.; LAGACHERIE, P.; LELYK, G.; LIBOHOVA, Z.; LILLY, A.; MCBRATNEY, A.; MCKENZIE, N.; VASQUES, G. de M. Soil legacy data rescue via GlobalSoilMap and other international and national initiatives. GeoResJ, v. 14, p. 1-19, Dec. 2017.Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 5 |
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