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Healthy cows can maximize the production, profitability and potential of your dairy farm!

Cattle Housing and Ventilation

Effective ventilation in your cattle housing is crucial to your herds good health as well as to their performance. 

At Wynnstay we have helped our customers develop ventilation solutions, that are both cost effective and meet the key principles of optimal climatic conditions. 

We believe in

  • Finding solutions to reduce or eliminate draughts at stock level
  • Offering advice on ventilation solutions that work no matter what the wind strength
  • Advising on ventilation solutions based on your building structure, age and position

Our promise to you

Our team of housing experts will always find the best solution for your farm and your budget, we offer impartial advice to practical solutions, with no obligation.

Key Benefits

Request a call back

For specialist advice on the right ventilation or lighting solution for your needs, complete the form below and a member of our hardware team will be in touch shortly. 

Julian Bowers, a beef producer in north Shropshire contacted our specialist, Richard Wild with a ventilation issue.


Mr Bowers states;

“The calf shed in question was open-sided, so in theory there’s consistent air flow, but it was inconsistent in its delivery. In the summer, calves were too hot, therefore feed intake dropped, with growth rates following suit. Likewise, over the winter months, growth rates were stunted by cold, windy weather and an increase in pneumonia and other respiratory issues.
We identified that the best solution was to create an environment we can control. We decided to make the building enclosed and introduced a series of fans – some extracting air from the outside, some circulating the air throughout the shed, and others acting as exhaust fans to take the air back out of the shed.
“This created a consistent air flow, and within six weeks Julian saw improvements in growth rates and reductions in respiratory issues. As a result, calves are now meeting their target growth rates. We’re now working to convert the old milking parlour in a similar way, to provide additional housing.”

What is Induction Lighting?

Induction lighting is a closed glass tube technology or fluorescent lighting without filaments or electrodes. It uses a magnetic field to excite the electrons in the bulb as the electrons accelerate inside the bulb, they collide with mercury atoms and produce ultraviolet (UV) light radiation. The UV light then causes the special phosphor coating inside the glass to react in a way that produces fluorescent light within the visible spectrum.

Environmental benefits of the Day-Lighter

  • Based on 100,000 hours of life you may have to replace one bulb and/ or one ballast. The bulb is recyclable except for the dime size reservoir of mercury. The die cast aluminium housing is recyclable, the lens is recyclable and much of the ballast can be recycled. This probably makes the Enviralight one of the most environmentally friendly lights available today
  • If we compare our 250 Watts induction at 100,000 to the 6 bulb and 2 ball ast fluorescent T bulbs with 20,000 hours of light you would have to change and throw into the landfill site 30 bulbs and 10 ballast.

Long Lifespan

Experience with using induction light at the U.S. Department of Energy's Waste Isolation Pilot Plant (WIPP) near Carlsbad, New Mexico, has demonstrated the long life in actual usage

WIPP's first induction lighting system was installed in 1998, replacing high-pressure sodium (HPS) lights. More than 10 years later, all but three of the original 36 induction units are still operating after more than 88,000 hours of continuous, 24/7 operation. Additional systems were installed in 2002 and succeeding years, both indoors and outside, with excellent results.

Case Study 

Richard Pilkington of Shordley Hall Farm, Wrexham has a 250-head herd of Holsteins and made the decision to invest in lighting and ventilation products from Wynnstay for his buildings in June 2014 and has seen great results.

Mr Pilkington states;

"I made the decision to invest in fans to improve the cows environment especially ventilation, our buildings are typical of those found in the UK and do not lend themselves very well to promoting natural ventilation."

Mr Pilkington was particularly concerned with the effect of poor ventilation on lying times, milk production and fertility during the warmer times of the year. In winter the moisture levels in the buildings and on the beds was worrying because of its impact on respiratory and udder health in the cows.

Mr Pilkington invested in 4 intake fans, 5 cyclone fans and 2 blast fans along with 55 enviralights for his building, with the ventilation and lighting plan being formulated by Huw McConochie as part of Wynnstay's building advisory service. The results of the fans and lighting installation have been clearly visible to Mr Pilkington.

"The beds have been drier and the cows have been lying down for longer; they are also now occupying the areas of the building that used to be dark prior to the installation of long day lighting. I have also seen a significant drop in cell count which I believe can be partly attributed to the drier environment."

The cell count for the Aintree herd is currently running at around 80,000 which is more than acceptable.

"We switched to twice a day milking from three times a day shortly after the lighting was introduced therefore it has been difficult to measure the exact results, but during the time we were milking three times a day milk yield per cow was up to 2.5 Litres, compared to the same time the previous year."
"Historically we suffered from a drop in pregnancy rate during hot spells of weather but this year following the installation of the ventilation and cooling equipment we managed to prevent the usual fall." said Mr Pilkington.

With every pregnancy rate point being worth up to £24 per cow the argument for improving cooling and ventilation even under the UK variable weather conditions is not a difficult one.

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