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Welfare of Pigs Being Transported over Long Distances Using a Pot-Belly Trailer during Winter and Summer.

Correa JA, Gonyou H, Torrey S, Widowski T, Bergeron R, Crowe T, Laforest JP, Faucitano L - Animals (Basel) (2014)

Bottom Line: Meat quality was evaluated in the Longissimus thoracis (LT), Semimembranosus (SM) and Adductor (AD) muscles.Blood lactate and CK concentrations were higher (P < 0.001) in winter than in summer.This study confirms that some locations within the PB trailer have a negative impact on the welfare of pigs at loading and during transport with more pronounced effects in the winter due to the additive effect of cold stress.

View Article: PubMed Central - PubMed

Affiliation: Inc., Ange Gardien, QC, J0E 1E0, Canada. Jean-Paul.Laforest@fsaa.ulaval.ca.

ABSTRACT
A total of 2,145 pigs were transported for 8 h in summer (six trips) and winter (five trips) using a pot-belly trailer accommodating pigs in four locations (upper deck or UD, bottom-nose or BN, middle deck or MD and bottom deck or BD). Heart rate of pigs during loading and transportation and lactate and creatine kinase (CK) concentrations in exsanguination blood were measured. Meat quality was evaluated in the Longissimus thoracis (LT), Semimembranosus (SM) and Adductor (AD) muscles. During summer, pigs loaded in the UD and MD had higher (P < 0.05) heart rate at loading compared to those located in the BD and BN. Blood lactate and CK concentrations were higher (P < 0.001) in winter than in summer. Lactate concentration was higher (P = 0.01) in the blood of pigs transported in the BN. Pigs transported in the BN had higher pHu values in the LT, SM and AD muscles (P = 0.02, P < 0.001 and P = 0.002, respectively) and lower (P = 0.002) drip loss values in the SM muscle. This study confirms that some locations within the PB trailer have a negative impact on the welfare of pigs at loading and during transport with more pronounced effects in the winter due to the additive effect of cold stress.

No MeSH data available.


Related in: MedlinePlus

Heart rate from loading at the farm to 8 h transit time of pigs transported in a pot belly trailer in summer (six journeys) and winter (five journeys).
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animals-04-00200-f002: Heart rate from loading at the farm to 8 h transit time of pigs transported in a pot belly trailer in summer (six journeys) and winter (five journeys).

Mentions: As shown in Figure 2, heart rate was higher (P < 0.001) at loading in the summer, which may be explained by the increased frequency of slips, balks and vocalizations on the loading chute and truck ramp observed in this season compared to winter in a companion study [17]. A higher (P < 0.001) heart rate was also recorded during the first transport phase in winter. The increased heart rate in the initial transport phase during winter transports may be explained by the animal’s need to maintain the body temperature and to maintain balance while the truck was in motion as in a companion study pigs stood more at the beginning of the journey in winter than in summer transports [17]. More recently, Goumon et al. [18] reported higher heart rates and more pigs standing during the initial phase of transport using a similar PB trailer in winter. It is usually reported that pigs mostly stand in the initial phase of transport as they usually need time to acclimate in the truck after the departure from the farm [19,20].


Welfare of Pigs Being Transported over Long Distances Using a Pot-Belly Trailer during Winter and Summer.

Correa JA, Gonyou H, Torrey S, Widowski T, Bergeron R, Crowe T, Laforest JP, Faucitano L - Animals (Basel) (2014)

Heart rate from loading at the farm to 8 h transit time of pigs transported in a pot belly trailer in summer (six journeys) and winter (five journeys).
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4494372&req=5

animals-04-00200-f002: Heart rate from loading at the farm to 8 h transit time of pigs transported in a pot belly trailer in summer (six journeys) and winter (five journeys).
Mentions: As shown in Figure 2, heart rate was higher (P < 0.001) at loading in the summer, which may be explained by the increased frequency of slips, balks and vocalizations on the loading chute and truck ramp observed in this season compared to winter in a companion study [17]. A higher (P < 0.001) heart rate was also recorded during the first transport phase in winter. The increased heart rate in the initial transport phase during winter transports may be explained by the animal’s need to maintain the body temperature and to maintain balance while the truck was in motion as in a companion study pigs stood more at the beginning of the journey in winter than in summer transports [17]. More recently, Goumon et al. [18] reported higher heart rates and more pigs standing during the initial phase of transport using a similar PB trailer in winter. It is usually reported that pigs mostly stand in the initial phase of transport as they usually need time to acclimate in the truck after the departure from the farm [19,20].

Bottom Line: Meat quality was evaluated in the Longissimus thoracis (LT), Semimembranosus (SM) and Adductor (AD) muscles.Blood lactate and CK concentrations were higher (P < 0.001) in winter than in summer.This study confirms that some locations within the PB trailer have a negative impact on the welfare of pigs at loading and during transport with more pronounced effects in the winter due to the additive effect of cold stress.

View Article: PubMed Central - PubMed

Affiliation: Inc., Ange Gardien, QC, J0E 1E0, Canada. Jean-Paul.Laforest@fsaa.ulaval.ca.

ABSTRACT
A total of 2,145 pigs were transported for 8 h in summer (six trips) and winter (five trips) using a pot-belly trailer accommodating pigs in four locations (upper deck or UD, bottom-nose or BN, middle deck or MD and bottom deck or BD). Heart rate of pigs during loading and transportation and lactate and creatine kinase (CK) concentrations in exsanguination blood were measured. Meat quality was evaluated in the Longissimus thoracis (LT), Semimembranosus (SM) and Adductor (AD) muscles. During summer, pigs loaded in the UD and MD had higher (P < 0.05) heart rate at loading compared to those located in the BD and BN. Blood lactate and CK concentrations were higher (P < 0.001) in winter than in summer. Lactate concentration was higher (P = 0.01) in the blood of pigs transported in the BN. Pigs transported in the BN had higher pHu values in the LT, SM and AD muscles (P = 0.02, P < 0.001 and P = 0.002, respectively) and lower (P = 0.002) drip loss values in the SM muscle. This study confirms that some locations within the PB trailer have a negative impact on the welfare of pigs at loading and during transport with more pronounced effects in the winter due to the additive effect of cold stress.

No MeSH data available.


Related in: MedlinePlus