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Tamioso,Priscilla Regina; Alberti Filho,Jaime Luiz; Dias,Laila Talarico; Teixeira,Rodrigo de Almeida. |
The study aimed to estimate the components of (co)variance and heritability for weights at birth (BW), weaning (WW) and 180 days of age (W180), as well as the average daily gains from birth to weaning (ADG1), birth to 180 days of age (ADG2) and weaning to 180 days of age (ADG3) in Suffolk sheep. Thus, three different single-trait animal models were fitted, considering the direct additive genetic effect (Model 1), the direct additive genetic and maternal permanent environmental effects (Model 2), and in Model 3, in addition to those in Model 2, the maternal additive genetic effect was included. After comparing models through the likelihood ratio test (LRT), model 3 was chosen as the most appropriate to estimate heritability for BW, WW and ADG1. Model 2 was... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Average daily weight gain; Body weight; Heritability; Maternal effects; Suffolk. |
Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013001200016 |
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Galicia-Juárez, Marisol; Mendoza-Onofre, Leopoldo Ernesto; González-Hernández, Víctor Arturo; Cisneros-López, María Eugenia; Benítez-Riquelme, Ignacio; Córdova-Téllez, Leobigildo. |
The aim of this research was to compare genetic parameters for traits related with seed germination and seedling vigour of single cross (SCH) vs. three-way (TWH) sorghum hybrids. The study was conducted in a sand bed under a greenhouse; 67 genotypes (four pairs of A- and B- lines, four R- lines, 13 SCH and 42 TWH) were allocated in a randomized complete blocks experimental design with three replications. Statistical analysis included ANOVA’s and Student “t” tests, while Tukey test (p £ 0.05) was applied for mean comparisons. The R-lines showed better physiological seed quality attributes than the A- and B- lines. The seed quality and heterosis values of SCH vs. that of TWH did not show significant differences (p > 0.05) for any variable; however,... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sorghum bicolor L. Moench; Maternal effects; Seedling emergence; Sorghum lines; Top-cross tests.. |
Ano: 2017 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/31198 |
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