Animal Breeding And Genetics
Mostrando 1-12 de 19 artigos, teses e dissertações.
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1. Determination of thermal comfort zone for early-stage broilers
ABSTRACT Environmental temperatures currently considered within comfort zone for broiler rearing may be misleading or even obsolete from actual values. Some factors such as animal genetics, nutrition and poultry management, mainly acclimatization to tropical and subtropical conditions, influence in determining the comfort zone for birds. This study aimed to
Eng. Agríc.. Publicado em: 2016-10
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2. Differentially expressed genes and miRNA identification in pig skeletal muscle / Identificação de genes diferencialmente expressos e miRNAs em músculo esquelético de suínos
The pig (Sus scrofa) is considered an important animal for meat production. This interest revolves around the potential for muscle growth, which usually is associated with certain characteristics during prenatal myogenesis. To study the genes responsible for these characteristics, expressed sequence tags (EST) provide direct information about the transcripto
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/07/2011
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3. Utilização de escores visuais de características morfológicas de bovinos nelore como ferramenta para o melhoramento genético animal.
ABSTRACT: The morphologic traits have generated great interest in creators and researchers, and studies have been carried through with intention to verify the genetic and ambient effects these traits. The research suggests that the selection based in visual scores can be effective. Thus, the objectives of this study were to present of simple form the visual
Planaltina. Publicado em: 2011
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4. Estudo de parâmetros genéticos do peso ao desmame em duas regiões no Brasil Central.
O melhoramento genético animal usa como ferramenta a seleção e o acasalamento. Determinar os parâmetros genéticos de uma característica e de grande importância para se realizar melhoramento; Objetivo deste trabalho foi estimar os parâmetros genéticos sobre o peso ao desmame nas regiões de Leiteiras (SP) e Goias (GO); Material e método: Utilizou-se
ENCONTRO DE BIÓLOGOS DO CRB-I. Publicado em: 2011
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5. Transcriptional networks reconstruction: identification of genes involved on cattle response to tick Rhipicephalus (Boophilus) microplus infestation.
In tropical countries, losses caused by tick infestation in cattle lead to a great impact on animal production systems. Weight and feed conversion reduction, together with diseases transmitted by the parasite are some of the problems that lead to economic losses of billion dollars a year. In a general way, Bos taurus indicus cattle are less susceptible to in
INTERNATIONAL CONFERENCE OF THE BRAZILIAN ASSOCIATION FOR BIOINFORMATICS AND COMPUTATIONAL BIOLOGY. Publicado em: 2011
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6. A bovinocultura de corte do estado de Mato Grosso do Sul : evolução e competitividade / Beef cattle in Mato Grosso do Sul state, Brazil : evolution and competitiveness
This dissertation is an attempt to characterize beef cattle raising production in Mato Grosso do Sul - a state which is currently the largest producer and supplier of beef in the country - and discuss the main factors responsible for its development. The study followed two analytical axes: it traces back the evolution of cattle-raising in the state during th
Publicado em: 2010
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7. Identificação e mapeamento de genes para uso na seleção assistida de genótipos de soja com ausência do inibidor de tripsina Kunitz e lipoxigennases
Soybean (Glycine max (L.) Merrill) is a food with high levels of proteins, minerals and fibres, and a reduced amount of saturated fat bringing benefits to humans health. However, the use of the product for human and animal feeding is limited to the presence of some antinutritional factors, as trypsin inhibitors and lipoxygenases enzymes. The development of
Publicado em: 2009
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8. Application of molecular information in sustainable animal breeding
Livestock genomics is aimed at dissecting the genetic control of variation in economically important trait, such as disease resistance and product yield/quality. Unraveling the genetic control of such complex traits remains very challenging but farm animals are now well placed to bridge the gap between human biology and traditional model species. Livestock s
Revista Brasileira de Zootecnia. Publicado em: 2008-07
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9. The role of social effects in selection for animal improvement
Quantitative genetics can be used to understand how traits will respond to artificial selection regimes, and therefore, it can be an important tool in the development of selective breeding programs for animal improvement. In order to predict the response to selection, the traditional approach in quantitative genetics partitions phenotypic variation into a he
Revista Brasileira de Zootecnia. Publicado em: 2008-07
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10. Estimates of (co)variance components and genetic parameters for reproductive traits in Santa Inês sheep breed using linear and threshold models / Estimativas de componentes de (co)variância e parâmetros genéticos para características reprodutivas em ovinos da raça Santa Inês utilizando modelos linear e de limiar
The aims of this study were evaluated genetic parameters with sire and animal mixed models, to continuous and discreet reproductive traits, as well as predict sires breeding values to continuous and discreet reproductive traits in Santa Inês ewes breed. The traits analyzed in this study were lambing interval (LI, N = 1,066), fertility (FR, N = 1,006) and nu
Publicado em: 2008
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11. Diversidade e estrutura genética de ovinos crioulos lanados do Brasil / Diversidade e estrutura genética de ovinos crioulos lanados do Brasil
The knowledge of the existing genetic variability in local breeds of livestock is important for the conservation genetics and for programs of animal breeding. The general objective of this research was to analyze the diversity and the genetic variability of Brazilian Creole Wool Sheep raised in the Southearn region of the country through the utilization of m
Publicado em: 2008
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12. Predição de valores genotípicos de híbridos de milho com desbalanceamentos de genótipos e ambientes / Predicting maize single-crosses genotypic values under unbalanced number of genotypes and environments
A fase mais difícil e que exige mais recursos em um programa de melhoramento de milho é a avaliação experimental dos híbridos, pois geralmente um elevado número de híbridos necessita ser avaliado em diversos ambientes. Deste modo, tanto o número de híbridos como o de ambientes são limitados pelos recursos disponíveis, o que poderia levar a uma red
Publicado em: 2008