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<identifier>oai:HAL:hal-01210926v1</identifier>
<datestamp>2017-12-21</datestamp>
<setSpec>type:ART</setSpec>
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<publisher>HAL CCSD</publisher>
<title lang=en>Effect of heat stress on blood rheology in different pigs breeds.</title>
<creator>Waltz, Xavier</creator>
<creator>Baillot, Michelle</creator>
<creator>Connes, Philippe</creator>
<creator>Gourdine, Jean-Luc</creator>
<creator>Philibert, Lucien</creator>
<creator>Beltan, Eric</creator>
<creator>Chalabi, Tawfik</creator>
<creator>Renaudeau, David</creator>
<contributor>Université des Antilles et de la Guyane (UAG)</contributor>
<contributor>Unité de Recherches Zootechniques (URZ) ; Institut National de la Recherche Agronomique (INRA)</contributor>
<contributor>Physiologie, Environnement et Génétique pour l'Animal et les Systèmes d'Elevage [Rennes] (PEGASE) ; Institut National de la Recherche Agronomique (INRA) - AGROCAMPUS OUEST</contributor>
<source>ISSN: 1386-0291</source>
<source>Clinical Hemorheology and Microcirculation</source>
<publisher>IOS Press</publisher>
<identifier>hal-01210926</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-01210926</identifier>
<source>https://hal.archives-ouvertes.fr/hal-01210926</source>
<source>Clinical Hemorheology and Microcirculation, IOS Press, 2014, 58 (3), pp.395-402. 〈10.3233/CH-131722〉</source>
<identifier>DOI : 10.3233/CH-131722</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.3233/CH-131722</relation>
<identifier>PRODINRA : 286489</identifier>
<identifier>PUBMED : 23603327</identifier>
<relation>info:eu-repo/semantics/altIdentifier/pmid/23603327</relation>
<language>en</language>
<subject lang=en>Hemorheology</subject>
<subject lang=en>breed</subject>
<subject lang=en>hot temperature</subject>
<subject lang=en>pigs</subject>
<subject>[SDV] Life Sciences [q-bio]</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>The main objectives of the present work were to test the effects of heat stress on blood rheology and to determine whether the responses can change according to the pig breeds. Thirty-six pigs from three pig's lines (n = 12 for each line) with assumed different tolerance to heat stress were compared: Large White (LW, little tolerance), Creole (CR, good tolerance) and LW × CR pigs (produced from a cross between LW and CR lines). In a first period, all pigs were exposed to a 9-d period of thermo-neutral environment (24°C; d-9 to d-1; P0). At the end of P0, six pigs from each line were slaughtered (n = 18). Then in a second period, the remaining pigs (6/breed; n = 18) were exposed to a 5-d period of heat stress (32°C; d + 1 -d + 5; P1) and thereafter slaughtered at d + 5. Rectal and skin temperatures, as well as respiratory rate, were recorded on d-1 and d + 5. At slaughter, blood was sampled for hematological and hemorheological measurements. Heat stress caused a rise of the skin temperature and respiratory rate without any changes in the rectal temperature or on the hematological and hemorheological parameters when all pigs' lines were considered. We observed a pig line effect on blood viscosity at high shear rate (375 s-1) and red blood cell deformability at 30 Pa with CR pigs having lower blood viscosity and higher red blood cell deformability than LW pigs. While the changes of blood viscosity under heat stress did not reach statistical significance in LW and CR lines, blood viscosity (at 375 s-1) increased above the temperate values in the LW × CR line. Red blood cell deformability at 30 Pa was higher in CR pigs exposed to heat stress compared to LW pigs in the same condition. In conclusion, thermal loading caused physiological stress but did not widely change the hematological and hemorheological profiles. Although some blood rheological parameters seem to vary with the pig breeds, the responses to heat stress are very similar.</description>
<date>2014</date>
</dc>
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