Effects of mid-summer transport duration on pre- and post-slaughter performance and pork quality in Mexico

Mota-Rojas, Daniel; Becerril, M.; Lemus, C.; Sánchez, Pablo E. Guerrero; González, Martha Hanel; Olmos, S. A.; Ramírez, Rodrigo; Alonso-Spilsbury, M.

doi:10.1016/j.meatsci.2005.11.012

Cited by 80 publications

(68 citation statements)

References 23 publications

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“…In goats, Kadim et al (2006) observed lower shrinkage in animals transported for 2 h than in non-transported animals due to tissue dehydration during transport at high ambient temperatures (378C). In pigs, Mota-Rojas et al (2006) evidenced best carcass yields when transportation time was shorter in mid-summer transport. In our study, environmental temperature was not high (108C to 128C), but the animals in this study were very young and pre-ruminant.…”

Section: Discussionmentioning

confidence: 97%

Physiological response and carcass and meat quality of suckling lambs in relation to transport time and stocking density during transport by road

Fuente

Sánchez

Pérez

et al. 2010

Animal

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To evaluate the effect of stocking density and transport time on physiological responses and meat quality, 72 male suckling lambs were transported by road to the slaughterhouse at three different stocking densities (0.12, 0.20 or 0.25 m 2 /lamb) and two transport times (5 h or 30 min). Blood samples were collected pre-transport at the farm and after unloading in the slaughterhouse to measure levels of cortisol, creatine kinase (CK) and lactate dehydrogenase (LDH). After slaughter, the weights of the hot carcass, liver and spleen were recorded and pH in Musculus longisimus thoracis et lumborum (L), Musculus semitendinosus (ST) and Musculus psoas major (PM) were determined. Colour, water-holding capacity (WHC), texture and thiobarbituric acid-reactive substances (TBARS) values were measured in samples of L, at 24 h post mortem and after 5 days of ageing. Cortisol and LDH were higher in suckling lambs transported for 30 min than those transported for 5 h. Stocking density did not affect blood parameters studied. Transport time significantly affected some carcass quality parameters, but stocking density had no significant effect. Suckling lambs transported for 5 h had lower liver weights and dressing percentages than those transported for 30 min. Transport time influenced pH values, with lambs subjected to the longer journey showing the lowest pH at 0 h in the three muscles studied, with the lowest final pH in L and PM. The PM lambs transported at high density (0.12 m 2 /lamb) had the lowest pH at 24 h. Transport time and stocking density did not greatly affect colour and texture parameters. The meat from lambs transported for 30 min had higher WHC than meat from lambs transported for 5 h. Animals transported for longer journeys showed higher lipid oxidation after 5 days of ageing than those transported for 30 min. Loading and initial transport caused significant stress response in suckling lambs, that stress response was reduced over the time course of the journey.Keywords: stocking density, transport time, animal welfare, meat quality, suckling lambs ImplicationsThis study attempts to be of practical value for the transport of suckling lambs, considering animal welfare of lambs as well as the economical aspects of improving meat quality and reducing costs of transport. European Union establishes a minimum space allowance per head of 0.20 m 2 for lambs over 26 kg of live weight, but operators can reduce this minimum without any regulation in small lambs. The results of this study show that stocking density could be reduced up to 0.12 m 2

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Section: Discussionmentioning

confidence: 97%

Physiological response and carcass and meat quality of suckling lambs in relation to transport time and stocking density during transport by road

Fuente

Sánchez

Pérez

et al. 2010

Animal

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“…The range of weight loss in pigs, even in short-term transport, is between 4-6% (Lambooij, 2007). In a study carried out in the Mexican summer, Mota-Rojas et al (2006) found that weight loss during transport for 8, l6 and 24 h was 2.7%, 4.3% and 6.8%, respectively. However, eight hours of lairage allowed the pigs to regain some weight due to rehydration.…”

Section: Water and Feeding Intervals Journey Times And Resting Periodsmentioning

confidence: 99%

Scientific Opinion Concerning the Welfare of Animals during Transport

2011

EFSA Journal

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The Scientific Opinion on the welfare of animals during transport reviewed the most recent scientific information concerning the main farm species. New scientific evidence and consequent conclusions and recommendations were arranged following the structure of Annex I of EC Regulation 1/2005 5 . On fitness for transport, recommendations for cattle and poultry were focused on repeated humane handling and careful inspection prior to transport. On the means of transport, use of partitions in horse transport, compulsory fasting of pigs with provision of water at stops, and temperature limits for poultry were major recommendations. Maintaining stability of animal groups was recommended as good practice, with special emphasis on the need to avoid mixing unfamiliar pigs or goats. On watering and feeding intervals, journey times and resting periods, journey duration should not exceed 12 hours for horses and 29 hours for cattle. Horses should be supplied with water one hour before and one hour after transport, and for cattle there should be a 24 hour recovery period with access to food and water. For rabbits, time spent inside the containers during lairage should be considered journey time. Space allowance for horses should be given in terms of kg/m 2 instead of m 2 /animal. For cattle and sheep, it is recommended that space allowances should be calculated according to an allometric equation relating size to body weight. Limits for stocking densities of broilers in containers should be related to thermal conditions. On the navigation systems, temperature monitoring systems should be incorporated. Minimum standards should be established regarding data type to be recorded, the 4 The changes do not affect the overall conclusions of the opinion. To avoid confusion, the original version of the opinion has been removed from the website, but is available on request, as is a version showing all the changes made.

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“…Contudo, alguns fatores ainda limitam a produção, como o predomínio de temperaturas elevadas (OCHOVE et al, 2010), infra-estrutura rodoviária e as longas distâncias observadas entre as unidades de produção e os frigoríficos. Esse último fator repercute diretamente nas condições de bem-estar animal e por consequência na qualidade de carne (LUDTKE et al, 2012).…”

Section: Introductionunclassified

“…Na produção de suínos, ainda busca-se estabelecer um padrão no manejo pré-abate, de forma à atender as legislações mas sobretudo, respeitando princípios de bem-estar animal à granja, ao transporte e ao abate, o que implicaria em produtos de melhor qualidade. Expressivas perdas relacionadas ao transporte foram estimadas através da análise de pesquisas conduzida por Schwartzkopf-Genswein et al (2012) (OCHOVE et al, 2010), ou em situação de estresse no momento do desembarque em relação àqueles transportados por longas distancias em que há tempo suficiente para a recuperação dos parâmetros fisiológicos (AVERÓS et al, 2007). Segundo Bryer et al, (2011), a maior ocorrência de mortalidade e de animais com dificuldade de locomoção acontecem nas primeiras horas de transporte.…”

Section: Introductionunclassified

“…Percursos longos podem apresentar efeito na qualidade da carne, relacionado a uma depleção de energia em suínos desidratados como carne do tipo escura, firme e seca (MOTA ROJAS et al, 2006) ou pálida, flácida e exsudativa (AVERÓS et al, 2007). Os dados de Bryer et al (2011) registraram que em períodos de transporte superior a 30 horas os suínos transportados apresentaram uma experiência de estresse agudo e alterações na homeostase provavelmente relacionadas com a desidratação, privação de alimento e do acondicionamento no transporte.…”

Section: Introductionunclassified

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