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Registro Completo |
Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
13/06/2022 |
Data da última atualização: |
13/06/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
OLIVEIRA, A. F. de; MENEZES, G. L.; GONÇALVES, L. C.; ARAÚJO, V. E. de; RAMIREZ, M. A.; GUIMARAES JUNIOR, R.; JAYME, D. G.; LANA, A. M. Q. |
Afiliação: |
ALAN FIGUEIREDO DE OLIVEIRA; GUILHERME LOBATO MENEZES; LÚCIO CARLOS GONÇALVES; VANIA ELOISA DE ARAÚJO; MATHEUS ANCHIETA RAMIREZ; ROBERTO GUIMARAES JUNIOR, CPAC; DIOGO GONZAGA JAYME; ANGELA MARIA QUINTÃO LANA. |
Título: |
Pasture traits and cattle performance in silvopastoral systems with Eucalyptus and Urochloa: Systematic review and meta-analysis. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
Livestock Science, v. 262, 104973, 2022. |
Páginas: |
15 p. |
Idioma: |
Inglês |
Conteúdo: |
ABSTRACT This study evaluated pasture traits and cattle performance in silvopastoral systems (SPSs) with Eucalyptus spp. and Urochloa spp. through a systematic review and meta-analysis. Systematic searches of databases, scientific journals and references of selected articles found 2,639 articles, of which 29 (120 comparisons) were selected. Comparisons were classified according to the covariates of distance between tree rows, number of trees/ha, tree planting orientation, system age and forage type. Data were submitted to meta-regression followed by subgroup analysis for covariates with a significant effect (P < 0.05) on the response. Data were analyzed in random effects models using mean difference and 95% confidence interval (P < 0.05). Forage mass (FM) was greater for SPSs with up to 99 trees/ha and lower for the other groups, compared to that for grass monoculture. Forage accumulation (FA) was also greater for SPSs with up to 99 trees/ha, but lower for SPSs with more than 300 trees/ha, compared to that for grass monoculture. FM was lower for SPSs of all spacings between tree rows and planting orientations, compared to that for grass monoculture, with the lowest being with smaller spacing and with northsouth planting orientation. FA was lower for SPSs with up to 28m between tree rows, compared to that for grass monoculture, while that for SPSs with more than 28m did not differ. Neutral detergent fiber concentration was lower and crude protein greater for SPSs compared to grass monoculture, while lignin was greater and in vitro dry matter digestibility did not differ, which indicated no significant improvement in nutritive value in SPSs. Average daily gain was greater in SPSs with up to 99 trees/ha, and lower in those with more than 400 trees/ha, than in grass monoculture, with other subgroups not differing. Total weight gain per area (GHA) was lower in SPSs with less than 28m between tree rows or with more than 199 trees/ha, but greater in SPSs with more than 28m or with up to 99 trees/ha, compared to grass monoculture. GHA was lower in SPSs with a north-south orientation compared to grass monoculture, but those with an east-west orientation did not differ. The use of U. brizantha cv. Marandu and an east-west planting orientation are efficient strategies in maintaining FM, FA and GHA. GHA was greater in SPSs with more than 28m between tree rows and with up to 99 trees/ha, than in grass monoculture, which may facilitate the implementation of these SPSs in commercial farms. MenosABSTRACT This study evaluated pasture traits and cattle performance in silvopastoral systems (SPSs) with Eucalyptus spp. and Urochloa spp. through a systematic review and meta-analysis. Systematic searches of databases, scientific journals and references of selected articles found 2,639 articles, of which 29 (120 comparisons) were selected. Comparisons were classified according to the covariates of distance between tree rows, number of trees/ha, tree planting orientation, system age and forage type. Data were submitted to meta-regression followed by subgroup analysis for covariates with a significant effect (P < 0.05) on the response. Data were analyzed in random effects models using mean difference and 95% confidence interval (P < 0.05). Forage mass (FM) was greater for SPSs with up to 99 trees/ha and lower for the other groups, compared to that for grass monoculture. Forage accumulation (FA) was also greater for SPSs with up to 99 trees/ha, but lower for SPSs with more than 300 trees/ha, compared to that for grass monoculture. FM was lower for SPSs of all spacings between tree rows and planting orientations, compared to that for grass monoculture, with the lowest being with smaller spacing and with northsouth planting orientation. FA was lower for SPSs with up to 28m between tree rows, compared to that for grass monoculture, while that for SPSs with more than 28m did not differ. Neutral detergent fiber concentration was lower and crude protein greater for SPSs compared to ... Mostrar Tudo |
Thesagro: |
Bovino; Bovinocultura; Brachiaria; Pastagem; Sistema de Cultivo; Sistema de Produção. |
Categoria do assunto: |
-- |
Marc: |
LEADER 03371naa a2200289 a 4500 001 2143970 005 2022-06-13 008 2022 bl uuuu u00u1 u #d 100 1 $aOLIVEIRA, A. F. de 245 $aPasture traits and cattle performance in silvopastoral systems with Eucalyptus and Urochloa$bSystematic review and meta-analysis.$h[electronic resource] 260 $c2022 300 $a15 p. 520 $aABSTRACT This study evaluated pasture traits and cattle performance in silvopastoral systems (SPSs) with Eucalyptus spp. and Urochloa spp. through a systematic review and meta-analysis. Systematic searches of databases, scientific journals and references of selected articles found 2,639 articles, of which 29 (120 comparisons) were selected. Comparisons were classified according to the covariates of distance between tree rows, number of trees/ha, tree planting orientation, system age and forage type. Data were submitted to meta-regression followed by subgroup analysis for covariates with a significant effect (P < 0.05) on the response. Data were analyzed in random effects models using mean difference and 95% confidence interval (P < 0.05). Forage mass (FM) was greater for SPSs with up to 99 trees/ha and lower for the other groups, compared to that for grass monoculture. Forage accumulation (FA) was also greater for SPSs with up to 99 trees/ha, but lower for SPSs with more than 300 trees/ha, compared to that for grass monoculture. FM was lower for SPSs of all spacings between tree rows and planting orientations, compared to that for grass monoculture, with the lowest being with smaller spacing and with northsouth planting orientation. FA was lower for SPSs with up to 28m between tree rows, compared to that for grass monoculture, while that for SPSs with more than 28m did not differ. Neutral detergent fiber concentration was lower and crude protein greater for SPSs compared to grass monoculture, while lignin was greater and in vitro dry matter digestibility did not differ, which indicated no significant improvement in nutritive value in SPSs. Average daily gain was greater in SPSs with up to 99 trees/ha, and lower in those with more than 400 trees/ha, than in grass monoculture, with other subgroups not differing. Total weight gain per area (GHA) was lower in SPSs with less than 28m between tree rows or with more than 199 trees/ha, but greater in SPSs with more than 28m or with up to 99 trees/ha, compared to grass monoculture. GHA was lower in SPSs with a north-south orientation compared to grass monoculture, but those with an east-west orientation did not differ. The use of U. brizantha cv. Marandu and an east-west planting orientation are efficient strategies in maintaining FM, FA and GHA. GHA was greater in SPSs with more than 28m between tree rows and with up to 99 trees/ha, than in grass monoculture, which may facilitate the implementation of these SPSs in commercial farms. 650 $aBovino 650 $aBovinocultura 650 $aBrachiaria 650 $aPastagem 650 $aSistema de Cultivo 650 $aSistema de Produção 700 1 $aMENEZES, G. L. 700 1 $aGONÇALVES, L. C. 700 1 $aARAÚJO, V. E. de 700 1 $aRAMIREZ, M. A. 700 1 $aGUIMARAES JUNIOR, R. 700 1 $aJAYME, D. G. 700 1 $aLANA, A. M. Q. 773 $tLivestock Science$gv. 262, 104973, 2022.
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Registro Completo
Biblioteca(s): |
Embrapa Pecuária Sudeste. |
Data corrente: |
26/07/2012 |
Data da última atualização: |
22/02/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
SUDANO, M. J.; PASCHOAL, D. M.; RASCADO, T. da S.; CROCOMO, L. F.; MAGALHÃES, L. C. O.; MARTINS JÚNIOR, A.; MACHADO, R.; LANDIM-ALVARENGA, F. da C. |
Afiliação: |
MATEUS JOSÉ SUDANO, POS GRADUAÇÃO UNESP/BOTUCATU; DANIELA MARTINS PASCHOAL, POS GRADUAÇÃO UNESP/BOTUCATU; TATIANA DA SILVA RASCADO, POS GRADUAÇÃO UNESP/BOTUCATU; LETICIA FERRARI CROCOMO, POS GRADUAÇÃO UNESP/BOTUCATU; LUIZ CARLOS O. MAGALHÃES, POS GRADUAÇÃO UNESP/BOTUCATU; ALÍCIO MARTINS JÚNIOR, POS GRADUAÇÃO UNESP/ARAÇATUBA; RUI MACHADO, CPPSE; FERNANDO DA CRUZ LANDIM ALVARENGA, POS GRADUAÇÃO UNESP/BOTUCATU. |
Título: |
Crucial surviving aspects for vitrified in vitro-produced bovine embryos. |
Ano de publicação: |
2012 |
Fonte/Imprenta: |
Zygote, v. 20, p. 1-8, 2012. |
DOI: |
10.1017/S0967199412000196 |
Idioma: |
Inglês |
Conteúdo: |
The objective of the present study was to correlate some parameters (cleavage, blastocyst production, quality degree score, total cell number, fresh apoptosis and lipid content) with embryo survival after cryopreservation. A total of 1727 in vitro-produced bovine blastocysts were used to establish the parameters (mean ± standard error of the mean (SEM)) for cleavage (85.6 ± 0.8), blastocyst production (39.9 ± 1.4), quality degree score (1.6 ± 0.1), total cell number (140.1 ± 2.9), fresh apoptosis (20.8 ± 1.1) and lipid content (21.3 ± 0.8 droplets). On the same way 1316 blastocysts were vitrified for the determination of post-cryopreservation embryo survival (49.4 ± 1.9). Fresh apoptosis rate and total lipid droplets value were correlated (P < 0.05) with embryo survival after cryopreservation (r = 0.91 and r = 0.59; respectively). However, cleavage, blastocyst production, quality degree score and total cell number were not correlated (P > 0.05) with embryo cryotolerance (r = 0.23, r = 0.38, r = 0.22 and r = 0.28; respectively). Therefore, the increased lipid content was moderately correlated with apoptosis in vitrified blastocysts. On the other hand, increased apoptosis in fresh blastocysts was strongly correlated with apoptosis in vitrified blastocysts, which indicated that the apoptosis rate in fresh embryos was a better parameter than the lipid content to predict post-vitrification embryo survival. |
Palavras-Chave: |
Cryotolerance; Embryo quality. |
Thesaurus NAL: |
apoptosis; lipid content. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 02189naa a2200265 a 4500 001 1929526 005 2023-02-22 008 2012 bl uuuu u00u1 u #d 024 7 $a10.1017/S0967199412000196$2DOI 100 1 $aSUDANO, M. J. 245 $aCrucial surviving aspects for vitrified in vitro-produced bovine embryos.$h[electronic resource] 260 $c2012 520 $aThe objective of the present study was to correlate some parameters (cleavage, blastocyst production, quality degree score, total cell number, fresh apoptosis and lipid content) with embryo survival after cryopreservation. A total of 1727 in vitro-produced bovine blastocysts were used to establish the parameters (mean ± standard error of the mean (SEM)) for cleavage (85.6 ± 0.8), blastocyst production (39.9 ± 1.4), quality degree score (1.6 ± 0.1), total cell number (140.1 ± 2.9), fresh apoptosis (20.8 ± 1.1) and lipid content (21.3 ± 0.8 droplets). On the same way 1316 blastocysts were vitrified for the determination of post-cryopreservation embryo survival (49.4 ± 1.9). Fresh apoptosis rate and total lipid droplets value were correlated (P < 0.05) with embryo survival after cryopreservation (r = 0.91 and r = 0.59; respectively). However, cleavage, blastocyst production, quality degree score and total cell number were not correlated (P > 0.05) with embryo cryotolerance (r = 0.23, r = 0.38, r = 0.22 and r = 0.28; respectively). Therefore, the increased lipid content was moderately correlated with apoptosis in vitrified blastocysts. On the other hand, increased apoptosis in fresh blastocysts was strongly correlated with apoptosis in vitrified blastocysts, which indicated that the apoptosis rate in fresh embryos was a better parameter than the lipid content to predict post-vitrification embryo survival. 650 $aapoptosis 650 $alipid content 653 $aCryotolerance 653 $aEmbryo quality 700 1 $aPASCHOAL, D. M. 700 1 $aRASCADO, T. da S. 700 1 $aCROCOMO, L. F. 700 1 $aMAGALHÃES, L. C. O. 700 1 $aMARTINS JÚNIOR, A. 700 1 $aMACHADO, R. 700 1 $aLANDIM-ALVARENGA, F. da C. 773 $tZygote$gv. 20, p. 1-8, 2012.
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