Effect of heat stress on biochemical parameters of hens

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F12%3A00199459" target="_blank" >RIV/62156489:43210/12:00199459 - isvavai.cz</a>
Result on the web
<a href="http://tchie.uni.opole.pl/PECO11_1/EN/HavlicekSlama_PECO11_1.pdf" target="_blank" >http://tchie.uni.opole.pl/PECO11_1/EN/HavlicekSlama_PECO11_1.pdf</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Effect of heat stress on biochemical parameters of hens
Original language description
The objective of this paper was to evaluate the effects of high temperatures on biochemical parameters of hens. Heat stress generally causes a decrease in feed intake. The hypothesis that feed intake, egg production,egg quality measures, acid-base status(pH, pCO2, HCO3--) of hens would be influenced by the high temperature period was tested. Twenty four Isa Brown hens at 60 weeks of age were used in this experiment and hens were randomly separated into 2 equal groups. Each group contains 12 hens. Firstcontrol group was housed at 20.1-21.2°C and 60-65% relative humidity. Experimental group was housed for 2 weeks at 20.5°C and 60-65% relative humidity in experimental box, and then exposed to 27°C and 60% for 4 week, and then allowed to recover for 2 week at 20.5°C and 60% relative humidity. All production parameters and egg quality were significantly affected by heat stress. Feed intake during first week heat period was significantly reduced (18%). In three next weeks, feed intake was
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
ED - Physiology
OECD FORD branch
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Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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