Temperatura ambiente e concentrações séricas de cortisol em suínos em crescimento-terminação

Fagundes, Antonio Cesar Alves; Negrão, João Alberto; Silva, Alexandre Rodrigues; Gomes, Jacinta Diva Ferrugem; Souza, Luiz Waldemar de Oliveira; Fukushima, Romualdo Shigueo

doi:10.11606/s1413-95962008000700019

Cited by 9 publications

(3 citation statements)

References 9 publications

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“…The concentration of cortisol is 15% higher in barrows than in gilts [52]. HS-induced increases in the concentrations of catecholamines and glucocorticoids have been observed in many species [53,54]; the effect of HS on immune cells is suggested to be dependent upon these hormones [55][56][57]. Similarly, Rudolph et al [40], found that oxidative stress did not result in muscle injury in barrows, while…”

Section: Discussionmentioning

confidence: 99%

Genome-Wide Transcriptome and Metabolome Analyses Provide Novel Insights and Suggest a Sex-Specific Response to Heat Stress in Pigs

Srikanth

Park

et al. 2020

Genes

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Heat stress (HS) negatively impacts pig production and swine health. Therefore, to understand the genetic and metabolic responses of pigs to HS, we used RNA-Seq and high resolution magic angle spinning (HR-MAS) NMR analyses to compare the transcriptomes and metabolomes of Duroc pigs (n = 6, 3 barrows and 3 gilts) exposed to heat stress (33 °C and 60% RH) with a control group (25 °C and 60% RH). HS resulted in the differential expression of 552 (236 up, 316 down) and 879 (540 up, 339 down) genes and significant enrichment of 30 and 31 plasma metabolites in female and male pigs, respectively. Apoptosis, response to heat, Toll-like receptor signaling and oxidative stress were enriched among the up-regulated genes, while negative regulation of the immune response, ATP synthesis and the ribosomal pathway were enriched among down-regulated genes. Twelve and ten metabolic pathways were found to be enriched (among them, four metabolic pathways, including arginine and proline metabolism, and three metabolic pathways, including pantothenate and CoA biosynthesis), overlapping between the transcriptome and metabolome analyses in the female and male group respectively. The limited overlap between pathways enriched with differentially expressed genes and enriched plasma metabolites between the sexes suggests a sex-specific response to HS in pigs.

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Section: Discussionmentioning

confidence: 99%

Genome-Wide Transcriptome and Metabolome Analyses Provide Novel Insights and Suggest a Sex-Specific Response to Heat Stress in Pigs

Srikanth

Park

et al. 2020

Genes

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“…When animals are under heat stress, they tend to find ways to reduce it through physiological regulatory mechanisms, but in doing so the animals use energy that otherwise would be used for production, with a negative result for the production system (Smulders et al, 2006;Fagundes et al, 2008). Environmental factors influence the production level of animals, therefore this is an important subject of study, once less stressful environmental conditions may result in a maximum yield.…”

Section: Introductionmentioning

confidence: 99%

Physiological Parameters of Pigs Raised with and without Environmental Enrichment

Luz¹,

Farias²,

Pimenta³

et al. 2017

JAS

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Ethical and commercial issues are associated with animal welfare in pig farming, in that sense, the objective of this work was to evaluate physiological and blood parameters in addition to weight gain in pigs raised with and without sunlight and environmental enrichment (EE), as well as to correlate physiological and environmental parameters as welfare indicators. Twenty-four pigs distributed in a randomized block design with a 2 × 2 factorial arrangement were used. Blocks were represented by shifts (morning and afternoon), and factors by the presence or absence of EE and sunlight. Blood and environmental parameters of thermal comfort, in addition to weight gain, were registered. Physiological parameters showed to be shift dependent (p < 0.05), with the afternoon shift being superior when compared to the morning shift, thus indicating climate influence. Weight gain showed significant interactions (p < 0.05) in the presence and absence of sunlight and EE in the stalls. Temperature correlated positively with the physiological parameters. Moisture showed negative correlations with physiological parameters. The packed cell volume was lower (p < 0.05) in the presence of EE. The EE provides physiological well-being and weight gain for pigs in the nursery stage, especially when sunlight was absent in the stalls.

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“…COSTA et al, 2007;CAMPOS et al ,2009). Entre as ferramentas usadas para mensurar o bem estar animal, destaca-se as medidas ambientais, os indicadores fisiológicos (temperatura corporal, níveis de cortisol, frequência respiratória, resposta imunológica) FAGUNDES et al,2008 ) e comportamentais (fugas, brigas, brincadeiras e vocalizações) (CANDIANI et al, 2008;KRANENDONK et al, 2006). A maioria dessas medidas é de difícil mensuração e inviável a avaliação por técnicos em granjas comerciais, sendo necessário um sistema automático para avaliação do bem estar.…”

Section: Resultsunclassified

Classificação de condições de estresse, gasto energético e identificação de suinos a partir de sua vocalização

Cordeiro¹

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Dedico,A Deus, por que Dele, por Ele e para Ele são todas as coisas (Romanos 11:36). Foi Ele quem me deu vida, saúde e inteligência para conquistar este Título.Aos meus pais Sebrino e Nazaré, pelo apoio, incentivo e participação durante toda minha vida escolar e acadêmica.Ao meu esposo Francisco de Assis, pela compreensão, companheirismo e apoio durante esta jornada.A minha filha Gabriela, por entender minha ausência e incentivar minhas conquistas. vii AgradecimentosA minha orientadora Profª Irenilza Nääs, por me conduzir nesta etapa da vida acadêmica.A Faculdade de Engenharia Agrícola da UNICAMP, pelo apoio a esta pesquisa.Aos docentes do curso de pós-graduação da Feagri-Unicamp, pela contribuição em nossa formação.Ao prof. Fábio Violaro da Faculdade de Engenharia Elétrica, pelo apoio, incentivo e participação fundamental no desenvolvimento desta pesquisa. Ao prof. Stanley Robson Medeiros pelas contribuições indispensáveis nesta pesquisa.A equipe do laboratório de ambiência da Feagri-Unicamp que contribuíram para o desenvolvimento deste trabalho, em especial a Andréia Almeida,

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Temperatura ambiente e concentrações séricas de cortisol em suínos em crescimento-terminação

Cited by 9 publications

References 9 publications

Genome-Wide Transcriptome and Metabolome Analyses Provide Novel Insights and Suggest a Sex-Specific Response to Heat Stress in Pigs

Genome-Wide Transcriptome and Metabolome Analyses Provide Novel Insights and Suggest a Sex-Specific Response to Heat Stress in Pigs

Physiological Parameters of Pigs Raised with and without Environmental Enrichment

Classificação de condições de estresse, gasto energético e identificação de suinos a partir de sua vocalização

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