Effects of temperature and temperature-humidity index on the reproductive performance of sows during summer months under a temperate climate

Autor:	Gerald Reiner, Christian Lambertz, Gürbüz Daş, Kerstin Wegner, Matthias Gauly
Rok vydání:	2016
Předmět:	0301 basic medicine Litter (animal) Heat index Ecology animal diseases media_common.quotation_subject 0402 animal and dairy science Humidity Climate change 04 agricultural and veterinary sciences General Medicine 040201 dairy & animal science Weather station Hot Temperature 03 medical and health sciences 030104 developmental biology Animal science 13. Climate action Temperate climate Environmental science Reproduction General Agricultural and Biological Sciences media_common
Zdroj:	Animal Science Journal. 87:1334-1339
ISSN:	1344-3941
DOI:	10.1111/asj.12569
Popis:	Heat stress is known to influence sow reproduction, but it is unknown to which extent under temperate climates. Therefore, the impact of temperature and temperature-humidity index (THI) on the reproductive performance of sows during summer months from 2009 to 2011 were studied. Reproductive parameters of 22 264 inseminations and 21 610 resulting farrowings of 22 German commercial farms were analyzed. Climatic records were available from the nearest weather station. Effects of temperature and THI at different periods of the reproductive cycle were estimated from May to September where temperatures were expected to influence climatic conditions indoors. High temperatures and THI values 5 days pre- and 14 days post-breeding reduced litter size by 0.01 to 0.03 piglets (P 0.05). In conclusion, even under temperate conditions adverse effects of climatic variables on the reproductive performance of sows are present. Thereby, the number of liveborn piglets can be considered as the most sensitive parameter to heat stress. Considering the impact of climate change and predicted heat waves, strategies to mitigate the impact of heat stress are necessary.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9ed915d442ca91e8c4d76bc7bf4e4f5c https://doi.org/10.1111/asj.12569 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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