Pig World
  • News
      • Animal Health
      • Breeding
      • Business
      • Environment
      • EU
      • Food Safety
      • Housing
      • Marketing
      • NPA
      • National Pig Awards
      • New Products
      • Nutrition
      • People
      • Pig Fair
      • Politics
      • Training & Education
      • Welfare
  • Features
    • Animal Health
    • Breeding
    • Environment
    • Farm Visits
    • Herd Recording
    • Housing
    • Marketing
    • Nutrition
    • Products
    • Training
  • Comment
    • AHDB Pork
    • Chris Fogden
    • Dennis Bridgeford
    • Peter Crichton
    • Red Robin
    • Veterinary View
    • Zoe Davies, NPA
  • Numbers
  • Pig Prices
  • Magazines
    • July 2025
    • June 2025
    • 2025 Innovation supplement
    • May 2025
    • April 2025
    • March 2025
    • 2025 Buildings supplement
    • February 2025
    • 2025 Nutrition Supplement
    • January 2025
    • December 2024
    • November 2024
    • 2025 National Pig Awards supplement
    • October 2024
    • September 2024
    • August 2024
    • 2024 Pig Health supplement
    • July 2024
    • June 2024
    • 2024 Innovation supplement
    • 2024 Pig & Poultry Fair Guide
    • May 2024
    • April 2024
    • 2024 Buildings Supplement
    • March 2024
    • 2024 Pig Nutrition supplement
    • February 2024
    • January 2024
    • December 2023
    • November 2023
    • 2023 National Pig Awards supplement
    • October 2023
    • September 2023
    • Health Supplement
  • Suppliers
  • Jobs
    • Browse Jobs
    • Post a Job
    • Manage Jobs
  • Classified
  • Events
    • Pigs Tomorrow
    • National Pig Awards
Podcast
Pig WorldPig World
  • News
      • Animal Health
      • Breeding
      • Business
      • Environment
      • EU
      • Food Safety
      • Housing
      • Marketing
      • NPA
      • National Pig Awards
      • New Products
      • Nutrition
      • People
      • Pig Fair
      • Politics
      • Training & Education
      • Welfare
  • Features
    • Animal Health
    • Breeding
    • Environment
    • Farm Visits
    • Herd Recording
    • Housing
    • Marketing
    • Nutrition
    • Products
    • Training
  • Comment
    • AHDB Pork
    • Chris Fogden
    • Dennis Bridgeford
    • Peter Crichton
    • Red Robin
    • Veterinary View
    • Zoe Davies, NPA
  • Numbers
  • Pig Prices
  • Magazines
    1. July 2025
    2. June 2025
    3. 2025 Innovation supplement
    4. May 2025
    5. April 2025
    6. March 2025
    7. 2025 Buildings supplement
    8. February 2025
    9. 2025 Nutrition Supplement
    10. January 2025
    11. December 2024
    12. November 2024
    13. 2025 National Pig Awards supplement
    14. October 2024
    15. September 2024
    16. August 2024
    17. 2024 Pig Health supplement
    18. July 2024
    19. June 2024
    20. 2024 Innovation supplement
    21. 2024 Pig & Poultry Fair Guide
    22. May 2024
    23. April 2024
    24. 2024 Buildings Supplement
    25. March 2024
    26. 2024 Pig Nutrition supplement
    27. February 2024
    28. January 2024
    29. December 2023
    30. November 2023
    31. 2023 National Pig Awards supplement
    32. October 2023
    33. September 2023
    34. Health Supplement
    Featured

    July 2025 issue of Pig World now available

    July 6, 2025
    Recent

    July 2025 issue of Pig World now available

    July 6, 2025

    June 2025 issue of Pig World now available

    June 4, 2025

    2025 Innovation supplement now available

    June 4, 2025
  • Suppliers
  • Jobs
    • Browse Jobs
    • Post a Job
    • Manage Jobs
  • Classified
  • Events
    • Pigs Tomorrow
    • National Pig Awards
LinkedIn X (Twitter)
Pig World
Housing

Heatwave harms pig performance

PW ReportersBy PW ReportersAugust 9, 20132 Mins Read
LinkedIn Twitter Facebook Email

Recent heatwave conditions have highlighted problems resulting from wide temperature fluctuations in finishing houses, according to ARM Buildings’ environmental specialist, Tim Miller, who has suggested that sharp differences between day- and night-time temperatures can stress pigs, lower performance and trigger health problems.

The effects are seen more in houses where pigs are nearing their end weights, and this is exacerbated in buildings run on an all-in, all-out system that results in a high average liveweight for the house.

“The heat output from large numbers of pigs nearing 100kg is enormous,” Mr Miller said.

Badly insulated older houses are more vulnerable, especially if they’re poorly ventilated, but siting has an effect, too, especially with ACNV buildings that are sheltered from the wind.

“We’ve recorded temperatures as high as 33.5C and as low as 20C inside houses within a 12-hour period, but in autumn fluctuations can be even more severe,” Mr Miller added. “You can have 30C at 4.00pm and 16C at 9.00pm – a 14-degree drop in just five hours. There’s evidence to show that big swings in temperature have a greater impact on pig performance than high temperatures alone.”

Keeping pigs in their thermo-neutral zone between their upper and lower critical temperature is the aim and ventilation is the key, said Mr Miller. However, in the absence of air-conditioning it can’t lower the temperature below the prevailing ambient temperature.

“We’re trying to avoid a lift of more than three degrees over ambient,” he added. “Some Continental suppliers install systems with half the capacity of those in the UK, leading to temperature lifts as high as six degrees, but we try to limit the temperature lift.”

In co-operation with control specialist, Farmex, ARM Buildings is developing a fan-control program that will moderate the rate of temperature drop in piggeries during the evening, making conditions more comfortable for the pigs. Farmex has an option on its Dicam control system called ‘rate limit’ that helps achieve this goal, and monitoring from a variety of farms has enabled this system to be further refined.

Share. LinkedIn Facebook Twitter Email
Previous ArticleHGCA leads £1.5 million investment into feed research
Next Article Controlling flies on the farm
PW Reporters

Read Similar Stories

NPA calls for planning reforms to help pig sector grow and deliver objectives

June 25, 2025

Hot weather warning as farm animals at risk

June 25, 2024

How uncertainty is stifling investment in pig buildings

March 5, 2020
Latest News

ABN kicks off pioneering long-term mill project

July 11, 2025

Red Tractor to press ahead with new tiers for outdoor pig producers

July 10, 2025

Last chance to enter or nominate for 2025 National Pig Awards

July 10, 2025
Sponsored Content

THE GATEKEEPER OF RESPIRATORY HEALTH – MYCOPLASMA HYOPNEUMONIAE (M.HYO)

April 30, 2024

Tackle the root cause of PWD with free diagnostic tests

March 1, 2024
Current Pig Industry jobs
  • Senior-Level Pig Stockperson – Ref 1760 Hampshire

    • Hampshire
    • Roadhogs Recruitment Ltd.
    • Full Time
  • Pig Stockperson – Ref 1759 North Yorkshire

    • North Yorkshire
    • Roadhogs Recruitment Ltd.
    • Full Time
  • Pig Stockperson – Ref 1758 Norfolk

    • Norfolk
    • Roadhogs Recruitment Ltd.
    • Full Time
GETTING IN TOUCH
  • Advertise
  • Contact Us
  • Meet The Editors
  • About Us
  • Email Newsletters
  • Subscribe
  • Reuse permissions
OUR SOCIAL CHANNELS
  • Twitter
  • LinkedIn
PARTNER EVENTS
RELATED SITES
  • Farmers Weekly
  • Agronomist & Arable Farmer
  • Farm Contractor
  • National Pig Awards
  • Pigs Tomorrow
  • Poultry News
  • Weekly Tribune
  • Privacy Policy
  • Cookies Policy
  • Terms and Conditions
© 2024 MA Agriculture Ltd, a Mark Allen Group company

Type above and press Enter to search. Press Esc to cancel.