Herdability
Mostrando 13-18 de 18 artigos, teses e dissertações.
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13. Avaliação do crescimento de codornas de corte utilizando modelos de regressão aleatória / Evaluation of quail meat growth using random regression models
The data used in this study originates from 26835 and 27447 observations, from 3909 and 4040 meat quails of the UFV-1 and UFV-2 lineage, respectively, pertaining to the Program of Genetic Improvement of Poultry of the Federal University of Viçosa. The characteristic physical weight was evaluated in the two lineages, 1, 7, 14, 21, 28, 35 and 42 days of age,
Publicado em: 2008
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14. Seleção, comportamento fenotípico e genotípico e desenvolvimento de uma nova cultivar de manjericão (Ocimum basilicum L.) para Sergipe. / Selection, phenotypical and genotypical behavior and development of a new basil (Ocimum basilicum L.) cultivar to Sergipe.
Basil is a medicinal, aromatic and spicy species with high commercial value. Actually, the production is based on the cultivation of a mix of chemical types and that cause production of low quality essential oil. The study of genetic parameters, which influence essential oil production and chemical constituents, contribute for development of cultivars with h
Publicado em: 2007
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15. ESTUDO DA PERSISTÊNCIA E PRODUÇÃO DE LEITE DE VACAS DA RAÇA HOLANDESA UTILIZANDO MODELO DE REGRESSÃO ALEATÓRIA / STUDY OF THE PERSISTENCE OF THE LACTATION IN HOLSTEIN COWS USING A RANDOM REGRESSION MODEL
A total of 21,702 test day milk yield records had been used of 2.429 first parity Holstein cows from 1991 and 2003, distributed in 33 herds of the state of Rio Grande do Sul, with the objective to estimate genetic parameters for persistence of lactation and milk production in the day of the control, to evaluate the relative efficiency of the selection for pe
Publicado em: 2006
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16. Genetic basis of quantitative traits in different oat (Avena sativa L.) populations / Bases genéticas de caracteres quantitativos em diferentes populações de aveia (Avena sativa L.)
In the investigations performed with the oat crop, many mechanisms have been proposed with the goal of maximizing the genetic gains in different quantitative traits, especially on segregating populations, where a greater level of genetic interaction is expected. On the other hand, great value has been attributed to the right choice of environmentally adapted
Publicado em: 2006
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17. Seleção entre e dentro de famílias de irmãos completos de maracujazeiro (Passiflora edulis f. flavicarpa) / Among and inside selection of the full sibling families of passion fruit plants (Passiflora edulis f. flavicarpa)
A population of yellow passion fruit (Passiflora edulis f. flavicarpa), constituted of twenty-six full sibling families, was evaluated in outline of blocks at random, with three blocks and four plants per parcel (spacing 4 x 3 m), installed in the experimental area at Fitotecnia Department of the Universidade Federal de Viçosa. The objective of this work wa
Publicado em: 2006
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18. Hunting expressed mammary gland genes related to mastitis in dairy cattle / Descobrindo genes expressos na glândula mamária e relacionados à ocorrência e controle da mastite bovina
Brazil is the largest cattle commercial herd in the world, mainly based in zebu (Bos indicus) with lower genetic potential than taurus-derived animals. Molecular genetics brought the possibility of better selection of animals for breeding, which increases production levels. The use of molecular methods for studying genetic variation is especially advantageou
Publicado em: 2003