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Temperament Traits Related to Stress and Meat Quality: Are they Reliable and Heritable?

WShannon
Ethology
November 23, 2020

Welfare, ease of handling, stockperson labour required to move and productivity are all influenced by the susceptibility of pigs to stress. Severe losses for packers and producers often arise from stress during transport and handling of pigs at marketing. This includes in-transit death losses, reduced meat quality and carcass damage. Temperamental differences significantly affect how pigs handle stressful situations and their meat quality. Temperament may be heritable, and if it is, a breeding stock could be selected based off of temperament tests based on stress response in order to reduce stress in future offspring. Different behavioural tests were evaluated based on their ability to accurately determine temperament traits related to the pigs stress response. Simple behavioural tests can be used to distinguish between temperament traits in pigs. Correlations were found in temperament in the first and second generation offspring. Saliva cortisol concentration was correlated with temperament classifications as well. Pigs may be able to be selected for a reduced stress response, with the analysis of temperament heritability ongoing.

Temperament Traits Related to Stress and Meat Quality – Are they Reliable and Heritable (full article)

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Research Areas
EngineeringEthologyManagementMediaNutritionOntario PorkProductionSwine Innovation Porc

Engineering

  • Optimizing temperature requirements of pigs to reduce energy use in swine production
  • Investment cost and payback period of a modified prototype livestock trailer
  • Alternative energy and heating sources

Nutrition

  • Transepithelial ion transport in the stomach of pigs exposed to gastric ulcer conditions
  • Developing an Indigestible Protein Index to Investigate the Effects of Dietary Protein in Pigs
  • Impact of fibre on performance and intestinal health of pigs fed a high indigestible protein level

Ethology

  • The influence of straw enrichment on hair hormone concentrations, behaviour, and productivity of growing pigs
  • Rearing pigs with play opportunities: The effects on disease resilience in pigs experimentally inoculated with PRRSV
  • Promoting play behaviour in grow-finish pigs

Management

  • Quality of Life Handbook – The use of environmental enrichment
  • Seek and you shall find; The value of postmortem, in pigs?
  • P1 development strategies for peak performance

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