Cooling ventilation at farrowing for sows from first to third parturition

Watanabe, Pedro Henrique; Azevedo, Tatianne Alexandre; Silva, Margarita Augusto do Nascimento; Oliveira, Nathalia Martins; Gomes, Thalles Ribeiro; Andrade, Tiago Silva; Barbosa Filho, José Antônio Delfino

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dc.creator	Watanabe, Pedro Henrique
dc.creator	Azevedo, Tatianne Alexandre
dc.creator	Silva, Margarita Augusto do Nascimento
dc.creator	Oliveira, Nathalia Martins
dc.creator	Gomes, Thalles Ribeiro
dc.creator	Andrade, Tiago Silva
dc.creator	Barbosa Filho, José Antônio Delfino
dc.date	2019-01-04
dc.date.accessioned	2022-03-21T20:07:48Z
dc.date.available	2022-03-21T20:07:48Z
dc.identifier	https://comunicatascientiae.com.br/comunicata/article/view/1098
dc.identifier	10.14295/cs.v9i4.1098
dc.identifier.uri	http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/77767
dc.description	This study aimed to evaluate the thermal comfort considering natural and cooling ventilation on the performance, physiological parameters and thermal comfort indices for sows from first to third parturition. A total of 30 sows from commercial lineage (genetic base Landrace x Large White) initially weighing 252.3±5.7, 280.8±9.5 and 324.5±4.8 kg at first, second and third parturition, respectively, were distributed in a 3x2 factorial arrangement, considering the three parturition orders and the two ventilation methods, with five replicas per treatment. The effect of ventilation methods and times of the day on relative humidity, radiant thermal load, temperature and humidity index and black globe humidity index. There was an interaction among ventilation methods and parturition order for sow weight at weaning and daily feed intake. Regarding the females physiological parameters, with the exception of rectal temperature, there was an interaction between ventilation methods and times of the day. The thermal conditioning using cooling ventilation provides better values for thermal comfort indexes of the sows and promotes an increase in feed intake, mainly in gilts.	en-US
dc.description	This study aimed to evaluate the thermal comfort considering natural and cooling ventilation on the performance, physiological parameters and thermal comfort indices for sows from first to third parturition. A total of 30 sows from commercial lineage (genetic base Landrace x Large White) initially weighing 252.3±5.7, 280.8±9.5 and 324.5±4.8 kg at first, second and third parturition, respectively, were distributed in a 3x2 factorial arrangement, considering the three parturition orders and the two ventilation methods, with five replicas per treatment. The effect of ventilation methods and times of the day on relative humidity, radiant thermal load, temperature and humidity index and black globe humidity index. There was an interaction among ventilation methods and parturition order for sow weight at weaning and daily feed intake. Regarding the females physiological parameters, with the exception of rectal temperature, there was an interaction between ventilation methods and times of the day. The thermal conditioning using cooling ventilation provides better values for thermal comfort indexes of the sows and promotes an increase in feed intake, mainly in gilts.	pt-BR
dc.format	application/pdf
dc.language	eng
dc.publisher	Federal University of Piauí	en-US
dc.relation	https://comunicatascientiae.com.br/comunicata/article/view/1098/592
dc.source	Comunicata Scientiae; Vol. 9 No. 4 (2018); 556-564	en-US
dc.source	Comunicata Scientiae; v. 9 n. 4 (2018); 556-564	pt-BR
dc.source	2177-5133
dc.source	2176-9079
dc.title	Cooling ventilation at farrowing for sows from first to third parturition	en-US
dc.title	Cooling ventilation at farrowing for sows from first to third parturition	pt-BR
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/publishedVersion