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Does light attract piglets to the creep area?

M L V Larsen1, L J Pedersen1

  • 1Department of Animal Science,Aarhus University,Blichers Alle 20,8830 Tjele,Denmark.

Animal : an International Journal of Animal Bioscience
|February 26, 2015
PubMed
Summary

New radiant heat sources did not attract piglets, who preferred sleeping in the dark. Turning off creep area lights, especially at night, is recommended for piglet welfare and preventing hypothermia.

Keywords:
behaviourcreep areaheat sourcelightpiglet

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Area of Science:

  • Animal Science
  • Agricultural Engineering
  • Pig Husbandry

Background:

  • Piglet hypothermia is a significant cause of mortality.
  • Early and consistent use of heated creep areas is crucial for preventing hypothermia.
  • Conventional heat sources often involve light-emitting infrared lamps.

Purpose of the Study:

  • To evaluate the efficacy of a novel radiant heat source, eHeat, on piglet creep area utilization.
  • To determine if light within the creep area influences piglet attraction and behavior.
  • To compare eHeat with a standard infrared heat lamp under different lighting conditions.

Main Methods:

  • 39 litters were randomly assigned to three treatments: standard infrared heat lamp (CONT), eHeat with light (EL), and eHeat without light (ENL).
  • Piglet creep area usage was recorded via scan sampling every 10 minutes for 3 hours during both daylight and dark periods.
  • Observations were conducted on days 1, 2, 3, 7, 14, and 21 postpartum; piglets were also weighed concurrently.

Main Results:

  • An interaction between treatment and observation period indicated reduced creep area use during darkness for CONT and EL groups, but not ENL.
  • Piglet average daily weight gain was not significantly affected by heat source treatment.
  • Piglets demonstrated a preference for sleeping in dark environments, suggesting light may not be an attractant.

Conclusions:

  • The eHeat system, with or without light, did not function as a significant attractant for piglets.
  • Piglets exhibit a natural preference for dark environments, indicating that creep area lights may be counterproductive during nighttime.
  • Radiant heat sources like eHeat can provide necessary warmth without light, offering an alternative to traditional infrared lamps for optimizing piglet comfort and potentially reducing mortality.