995 resultados para 49-408


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Poverty in Latin America Continues to Decrease for the Third Consecutive Year Community Response to Domestic Violence Wins Social Innovation Competition Our Region Can Achieve More. Op-ed by ECLAC's Executive Secretary, José Luis Machinea Highlights. Fernando Fajnzylber: A Vision of Renewal for Latin American Development. By Ernesto Ottone, Acting Deputy Executive Secretary of ECLAC Indicators Indigenous People of Latin America: New Obligations for 21st Century Democracies Recent titles Calendar of events

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Pobreza en América Latina sigue disminuyendo por tercer año consecutivo Programa contra violencia familiar gana concurso de innovación social Nuestra región puede más. Columna de opinión de José Luis Machinea, Secretario Ejecutivo de la CEPAL Precisiones. Fernando Fajnzylber: una visión renovadora del desarrollo en América Latina. Por Ernesto Ottone, Secretario Ejecutivo Adjunto a.i. de la CEPAL Indicadores Pueblos indígenas de América Latina: nuevas obligaciones para las democracias del siglo XXI Publicaciones recientes Calendario de eventos

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This study aimed to evaluate the potential for milk production (MP), lactation length (LL) and calving interval (CI), analyze the environmental component affecting these traits, and to estimate the heritability and repeatability for milk production in crossbreds of Murrah buffalo cows in the state of Alagoas, Brazil. Data was composed of 487 observations of MP from 136 lactations recorded between the years of 2000 and 2010. In the analysis of variance for PL, the fixed effects were season (1- October to March, 2 -April to September) and year of the beginning of lactation, calving order and the LL (covariate). For the analysis of LL only the fixed effect of year of the beginning of lactation was included, and finally for the CI analysis, year of the beginning of lactation and calving order. The estimates of covariance were obtained using unicharacteristic analysis by Bayesian inference method, applyingan animal model, through Gibbs sampling. The additive genetic, permanent environment and residual effects were included as random effects in the model. The averages (sd) of MP, LL and CI were 2,218.03 kg (408.18), 282.59 days (39.48) e 422.49 days (91.05), respectively. All the effects included in the models were important (P<0.01). The estimates of heritability and repeatability for PL were 0.29 and 0.69, respectively. The results suggest that there is a moderate genetic variability among individuals for PL, indicating the possibility to obtain gain using selection.

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Boletim elaborado pela Assessoria de Comunicação e Imprensa da Reitoria da UNESP

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Revista elaborada pela Assessoria de Comunicação e Imprensa da Reitoria da UNESP