Pig Breeding
Mostrando 1-12 de 32 artigos, teses e dissertações.
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1. Developments of reproductive management and biotechnology in the pig
Abstract This review aims to describe changes in production environment, management tools and technology to alleviate problems seen with the present hyperprolific sow model. Successful parturition in the pig includes the possibility to express adequate maternal behaviour, rapid expulsion of piglets, complete expulsion of placenta, elimination of uterine cont
Anim. Reprod.. Publicado em: 28/11/2019
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2. Strategies to control inbreeding in a pig breeding program: a simulation study
RESUMO: O objetivo deste estudo foi avaliar, por meio de simulação de dados, o impacto das restrições no número máximo de irmãos completos e meios-irmãos selecionados para machos e fêmeas no nível de endogamia e ganho genético do rebanho. Os dados originais são provenientes das populações reais A e B, compostas por suínos da raça Pietrain e
Cienc. Rural. Publicado em: 10/07/2019
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3. ALLOMETRIC GROWTH IN BRAZILIAN NATURALIZED PIGS
Resumo O crescimento alométrico de raças de suínos naturalizados (Nilo, Piau, Moura e Monteiro), machos e fêmeas, foi avaliado em relação à altura do quadril, comprimento do focinho e comprimento da cabeça, usando-se a equação alométrica. As medidas do corpo geralmente apresentam um crescimento mais tardio em relação ao comprimento do focinho e
Ciênc. anim. bras.. Publicado em: 29/04/2019
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4. Application of computational fluid dynamics on a study in swine facilities with mechanical ventilation system
ABSTRACT: Ventilation systems used in swine facilities deserve to be studied because they directly affect productivity in the pig farming sector. Bearing this in mind the uniformity of air distribution and temperature is essential to animal welfare in this breeding environment. Thus, the purpose of this study was to identify whether changes in air entrances
Sci. agric. (Piracicaba, Braz.). Publicado em: 2018-05
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5. Single-nucleotide polymorphism analysis of GH, GHR, and IGF-1 genes in minipigs
Tibetan (TB) and Bama (BM) miniature pigs are two popular pig breeds that are used as experimental animals in China due to their small body size. Here, we analyzed single-nucleotide polymorphisms (SNPs) in gene fragments that are closely related to growth traits [growth hormone (GH), growth hormone receptor (GHR), and insulin-like growth factor (IGF)-1)] in
Braz J Med Biol Res. Publicado em: 01/08/2014
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6. Genomic growth curves of an outbred pig population
In the current post-genomic era, the genetic basis of pig growth can be understood by assessing SNP marker effects and genomic breeding values (GEBV) based on estimates of these growth curve parameters as phenotypes. Although various statistical methods, such as random regression (RR-BLUP) and Bayesian LASSO (BL), have been applied to genomic selection (GS),
Genet. Mol. Biol.. Publicado em: 25/10/2013
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7. 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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8. Detecção e caracterização molecular de sapovírus em suínos assintomáticos
Porcine sapovirus (PoSaVs) infections are frequent in pig herds in America, Europe and Asia. The infection can be symptomatic, in which the typical clinical signs is diarrhea. However, asymptomatic infections are described with relative frequency. The genetic diversity of the PoSaV is high. Five genogroups and 16 genotypes are well established and five genog
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/03/2011
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9. O desempenho dos produtores de suínos em uma cooperativa da região centro oriental do Rio Grande do Sul : um estudo exploratório
A propriedade suinícola encontra-se hoje numa fase que, dificilmente poderá fugir ao processo integrador, disponibilizado pelas empresas detentoras de recursos financeiros e tecnológicos. No entanto, o produtor sujeita-se a margens estreitas de lucratividade pelas facilidades que o processo em si lhe oferece. A presente pesquisa consiste num estudo explor
Publicado em: 2011
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10. Breeding systems in Echinococcus granulosus (Cestoda; Taeniidae) : selfing or outcrossing?
We used the PCR±SSCP method followed by sequencing in order to assess the genetic variability of coding and noncoding parts of the genome of Echinococcus granulosus (Cestoda; Taeniidae) and to test whether or not the parasite populations are mainly self-fertilizing. For this, we analysed a sample of 110 E. granulosus metacestode isolates collected from diff
Publicado em: 2011
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11. Frequência de suínos soropositivos para Salmonella sp. em granjas afetadas em diferentes níveis de severidade pela Síndrome Multissistêmica de Definhamento do Leitão Desmamado= Frequency of Salmonella seropositive pigs in farms affected by different severity levels of the Post-weaning Multisystemic Wasting Syndrome / Frequency of Salmonella seropositive pigs in farms affected by different severity levels of the Post-weaning Multisystemic Wasting Syndrome
Background: The Post-weaning Multisystemic Wasting Syndrome (PMWS) has caused considerable losses due to mortality and wasting of pigs and has been often associated with co-infections with other viral or bacterial agents. At the present time, PMWS is the most important infectious disease syndrome in the Brazilian swine production. With a variety of symptoms,
Publicado em: 2011
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12. Estudos de locos de características quantitativas, de expressão gênica e teste de paternidade em suínos / Studies of quantitative trait loci, genic expression and of paternity testing in pigs
The accomplishment of the present study had as objective: 1) to map Quantitative Trait Loci (QTL) on chromosomes 1, 2, 3, 12, 14, 15 and X in a F2 pig population developed by mating two Brazilian Piau breed sires with 18 dams from a commercial line (Landrace × Large White × Pietrain); 2) investigate the level of expression of candidate genes influencing ec
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/09/2010