Application of a ventilation fan-misting bank on pigs kept in a stationary trailer before unloading: effects on trailer microclimate, and pig behaviour and physiological response
| Autor: | T. A. Diesel, Luigi Faucitano, Thuanny Lúcia Pereira, S. Conte, R. M. Friendship, Trever G. Crowe, Evaldo Antônio Lencioni Titto, F. A. Dalla Costa, Roberta Sommavilla, Nicolas Devillers, Frédéric Guay |
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| Přispěvatelé: | Universidade de São Paulo (USP), Agr & Agri Food Canada, Ctr Univ Unifacvest UNIFACVEST, Univ Estado Santa Catarina UDESC, Universidade Estadual Paulista (Unesp), Univ Laval, Univ Guelph, Univ Saskatchewan |
| Rok vydání: | 2018 |
| Předmět: |
Gastrointestinal tract temperature
General Veterinary 040301 veterinary sciences Trailer 0402 animal and dairy science Microclimate Transport 04 agricultural and veterinary sciences Cooling system 040201 dairy & animal science 0403 veterinary science Animal science Air temperature SUÍNOS Blood metabolites Blood lactate Environmental science Behaviour Pigs Animal Science and Zoology |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP Web of Science Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| Popis: | Made available in DSpace on 2019-10-04T12:31:20Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-10-01 Swine Innovation Porc within the Swine Cluster 2: Driving Results Through Innovation research program Agriculture and Agri-Food Canada through the AgriInnovation Program Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) The aim of this study was to evaluate the effectiveness of water misting with forced ventilation on a stationary trailer on internal vehicle ambient conditions, and behavioural and physiological response of market pigs. During 6 shipments, two identical 2-axle pot-belly trailers transported 191 pigs each (126 +/- 5 kg BW) to the same slaughter plant (135 km). On arrival, trailers were kept stationary in the yard for 30 min before unloading. One trailer was positioned along a fan-misting bank (PBVM), while the other trailer had no access to this cooling system (PBC). The PBVM treatment consisted of 10 min of fan-assisted ventilation (phase 1, P1) followed by 10 min of ventilation and water misting (phase 2, P2) and a final 10 min of ventilation (phase 3, P3). Within each trailer, 4 compartments (rear-top [C4], front-middle [C5], center-middle [C7], and front-bottom [C9]) were chosen for data collection. The air temperature (T) and relative humidity (RH) were monitored using data loggers. The percentage of lying pigs during each phase, and the latency to lie down and the frequency of drinking during lairage were calculated. Gastrointestinal tract temperature (GTE) and exsanguination blood lactate, hematocrit, creatine kinase and cortisol concentrations were assessed. Data from the last 5 min of P1 (wait 1), P2 (wait 2), and P3 (wait 3) were analysed. In wait 1, the application of the fan-assisted ventilation resulted in lower (P |
| Databáze: | OpenAIRE |
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