Effect of Stress on Swine: Heat and Cold Exposure and Starvation on Vanilmandelic Acid Output in the Urine

Stefanovic, M. P.; Bayley, H. S.; Slinger, S. J.

doi:10.2527/jas1970.303378x

Cited by 14 publications

(2 citation statements)

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“…This presents the consideration of outdoor stress, such as heat during the summer in affecting the swine gut environment to be more hospitable to C. jejuni. In normal pigs (Stefanovic et al, 1970) and those which suffer from malignant hyperthermia (Williams et al, 1985), experimental heat stress induces strong release of catecholamines, including norepinephrine. Interestingly, at concentrations as low as 1.2 × 10 − 5 M, norepinephrine can convert C. jejuni from a strict microaerophilic organism to one that is aerotolerant (Bowdre et al, 1976).…”

Section: Microbial Endocrinology-based Mechanisms In Infectious Diseasementioning

confidence: 99%

Review: Microbial endocrinology: intersection of microbiology and neurobiology matters to swine health from infection to behavior

Lyte

2019

Animal

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From birth to slaughter, pigs are in constant interaction with microorganisms. Exposure of the skin, gastrointestinal and respiratory tracts, and other systems allows microorganisms to affect the developmental trajectory and function of porcine physiology as well as impact behavior. These routes of communication are bi-directional, allowing the swine host to likewise influence microbial survival, function and community composition. Microbial endocrinology is the study of the bi-directional dialogue between host and microbe. Indeed, the landmark discovery of host neuroendocrine systems as hubs of host-microbe communication revealed neurochemicals act as an inter-kingdom evolutionary-based language between microorganism and host. Several such neurochemicals are stress catecholamines, which have been shown to drastically increase host susceptibility to infection and augment virulence of important swine pathogens, including Clostridium perfringens. Catecholamines, the production of which increase in response to stress, reach the epithelium of multiple tissues, including the gastrointestinal tract and lung, where they initiate diverse responses by members of the microbiome as well as transient microorganisms, including pathogens and opportunistic pathogens. Multiple laboratories have confirmed the evolutionary role of microbial endocrinology in infectious disease pathogenesis extending from animals to even plants. More recent investigations have now shown that microbial endocrinology also plays a role in animal behavior through the microbiota-gut-brain axis. As stress and disease are ever-present, intersecting concerns during each stage of swine production, novel strategies utilizing a microbial endocrinology-based approach will likely prove invaluable to the swine industry.

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Section: Microbial Endocrinology-based Mechanisms In Infectious Diseasementioning

confidence: 99%

Review: Microbial endocrinology: intersection of microbiology and neurobiology matters to swine health from infection to behavior

Lyte

2019

Animal

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“…Le mécanisme inverse est mis en jeu lors d'un déficit énergétique tel que produit, dans le cas présent, par une diminution de l'ingestion alimentaire. La mise en veille du système noradrénergique permet d'économiser l'énergie métabolique qui fait défaut (STEFANOVIC, BAYLEY et SLINGER, 1970). De fait, la chute de production d'énergie métabolique est compensée par une thermorégulation comportementale qui se manifeste par l'augmentation du nombre des porcelets sous la lampe à infrarouges .…”

Section: De La Physiologie De L'adaptation Au Bien-être Exemple Du Sunclassified

Bien-être du porc : le point de vue de l'animal, approches biologiques et comportementales

Mormède¹,

Foury²,

Meunier-Salaün³

2006

bavf

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Le bien-être fait référence à l’état psychologique subjectif de l’individu par rapport à son environnement interne et externe. Puisque nous ne sommes pas encore capables de lire directement les sensations et les émotions de l’animal, nous en sommes réduits à les inférer de l’analyse de leurs manifestations objectives, en particulier physiologiques et comportementales, qui ont été étudiées dans le contexte de la psychobiologie des émotions, du stress et de l’adaptation. L’activation des systèmes neuroendocriniens de réponse au stress (axe corticotrope et système nerveux sympathique) fournissent de nombreux marqueurs pour l’étude des réponses biologiques aux facteurs d’environnement. Cependant leur interprétation en termes de bien-être devra prendre en considération le rôle de ces systèmes dans la physiologie générale de l’organisme. On utilisera aussi des critères comportementaux (analyse du budget-temps et de l’utilisation de l’espace, comportements anormaux, expression des liens sociaux, tests de préférences) qu’il faudra analyser dans le contexte des acquis de l’éthologie appliquée. RÉSUMÉ

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Phenolic acids in pig slurry subjected to various treatment processes

Garraway

Ramirez

1982

J Sci Food Agric

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Effect of Stress on Swine: Heat and Cold Exposure and Starvation on Vanilmandelic Acid Output in the Urine

Cited by 14 publications

References 0 publications

Review: Microbial endocrinology: intersection of microbiology and neurobiology matters to swine health from infection to behavior

Review: Microbial endocrinology: intersection of microbiology and neurobiology matters to swine health from infection to behavior

Bien-être du porc : le point de vue de l'animal, approches biologiques et comportementales

Phenolic acids in pig slurry subjected to various treatment processes

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