Cooling cows is one wayyou can increase your yield, be kind to your cows, the environment and to your bottom line.If you operate in a climate where temperatures exceed

22°C, you won’t need the research to tell you that milk

yield falls during the days where temperatures are

high. When temperatures exceed 22°C, cows begin to

experience heat-stress. This causes them to eat less

and produce less milk up to 25% less. Heat stress

can also lead to lower pregnancy rates and lower birth

weight in calves.

DeLavalCow Cooling Systemprovide a cost effective way to reduce the impact of heat stress and keep milk production and fertility rates up.

Cool where it matters.DeLaval cow cooling is designed for the locations where heat stress has the most impact: the holding pen, waiting yard and feed fence. During feeding, cows that experience heat stress eat less resulting in less milk. In addition to this, over-heating in the holding pen or waiting yard can inhibit milk letdown.

Holding pens and waiting yardsAn integrated fan and water sprinkler system delivers effective cooling, while cows wait to be milked. The system delivers the optimal balance between droplet size and angle of contact to push water through the cow’s hair layer and onto the skin. This maximises heat transfer and effective use of water. Without this balance, water is wasted. Water either sits on top of the cow’s hair layer or ends up pooling on the ground. Variable cycle frequency and duration can be set to provide optimal cooling for different heat levels and weather conditions.

Feed fenceCool cows eat more and produce more milk. This is why DeLaval have developed a cooling system for the feed fence. A fine water mist cools cows while they eat, keeping them comfortable and stimulating their appetite. Because the mist is so fine and is directed onto the cows, it cools cows without saturating feed or stalls. This ensures a hygienic and comfortable environment for cows.

Effective cow cooling actually reduces total energy consumption relative to milk production. The additional electricity required to run the delivery fans is outweighed by the increase in yield. As a result, your total energy consumption divided by milk production is lower.

DeLaval Feed Fence Misting 20

Feed fence misting

Features

Benefits Benefits

Features

1. 100 litre/hour sprinkler rate.2. Fewer fans required.3. Oscillating fans cover 6 metres each of feed fence.4. Barn system controller gives advanced control (optional).

1. Optimise water usage and reduce waste water.2. Better coverage & penetration of droplets.3. Short payback time on investment.4. Can be operated under all climatic conditions, fully

automatic.5. Increase milk production, fertility and feed efficiency.6. Increased cow comfort for hot climate regions.

1. Fans will run continuously while cows are in the pen.

2. The water will be spread in intervals.3. No extra water pressure needed (Normal

water pressure 2 – 5 bar).

1. Cools the animals via conduction and evaporation.2. Sprinklers spread the water over a defined area.3. Increased cow comfort for hot climate regions.4. Increase milk production, fertility and feed

efficiency.

Waiting yard sprinkler

Feed fence misting in combination with waiting yard sprinklers will give the

utmost efficiency.

To get the most out of cow cooling; the DeLaval barn system controller lets you program your system to only activate in weather conditions when it will be effective. The barn system controller is an integrated control system that can be connected to temperature, wind and humidity sensors inside and outside your barn. Simple, touch controls allow you to select and to activate different cooling programs at different temperatures to achieve the same end result – cooler cows. This lets you get the most out of your cow cooling solution without the unnecessary expense of running it when it has no effect.

But the barn system controller does a lot more as well. With one controller you can program all of your barn systems to work together: illumination, ventilation and manure handling – as well as cow cooling. Working together increases the efficiency of all of your systems. For example if strong crosswinds affect your cow cooling, you can program the barn system controller to automatically close the curtains or panels that face that direction when wind velocity reaches a certain level.

DeLavalCow Cooling

System

2 3 4567

8

1Waiting Yard Sprinkler

ControlUnit Weather

Station

Online Monitoring

InServiceTM

Maintenance

Instructions on Cooling Procedures

AutomaticSystem

FeedFenceMisting

The bottom lineResearch shows that in hot climates, effective herd

cooling helps cows to maintain a higher level of milk

production throughout summer months. This equates to

between 5% and 10% higher annual yield per cow. This

means that on average, the system pays for itself within 6

to 18 months.

5%~10%

higher milk production annual yield per cow

www.delaval.com is a registered trademark of Tetra Laval Holdings & Finance S.A. and DeLaval is a registered trade/service mark of DeLaval Holding AB.

The manufacturer reserves the right to make design changes. XXXXXXXX/xx-YYYYMM

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If you operate in a location where heat-stress is a consideration, talk to your local DeLaval dealer to find out how a cow cooling system can improve your bottom line.

Cow Cooling Creating the right climatefor your cows

Every Voluntary Milking System (VMSTM) or any automated milking system farmer knows that keeping up the amount of visits to the milking robot is of the utmost importance and one of the hardest things to achieve if cows are in risk of heat stress. At DeLaval we developed a sprinkling system at the feed fence that saves energy and keeps your cows moving, even on warm summer days.

Keep your cows motivatedWith our system of cooling we stimulate the cow traffic in the right direction. We keep the cows motivated to eat and, milk and rest. When the cows have been laying down and start to get warm, they know they will be rewarded at the feed fence with cooling. And when they go milking we again reward the cow for behaviour she wants to do anyway.

The right fan for the right air throwTo cool and dry the cows properly we need a high wind speed (up to 3 m/s in hot climates). With our uniquely designed DDF1200 fans with specially formed fan blades we ensure a high airflow and a long throw. This way you need less fans and use less energy for an excellent cooling result.

Save up to 25%in energy and water consumption.*

Body temperatureKeeping the body temperature of the cow under control is of the utmost importance. We have tested our cooling system at commercial farm and have measured the body temperature of the cows. And only with regular cooling cycles we are able to keep the body temperature stable, preventing the long lasting effect of heat stress on milk production and reproduction.

Cow cooling in barns withautomated milking systems

When cooling with only fans is not enough, sprinkling or misting at the feed fence can play a key role in keeping the body temperature of your cows at the right level. In ordinary systems the cooling system has to run all day at the feed fence to be able to catch all cows to cool them down. We all know that the feedline in barns with AMS is not constantly full. And then you can spill hundreds of litres of precious water, have dirty and wet surroundings and consume numerous Kilowatts of power on your fans.

We had our own solution of cow cooling before, but we had problems with cow traffic, visits to VMS and animal health. After applying the cow cooling system of DeLaval, the visits are back at almost the same level as during the winter. And we see that back in the milk yield.”

José María Miguel, dairy farmer, Talavera la Nueva, Spain

Full control with sensorsWith our control system (patent application pending) for cow cooling, with the barn system controller at the heart, connected to sensors at the feed fence we can divide the feed fence into different zones. When a cow activates the light beam sensors, a cooling cycle is started in that section of the feed fence where the activity is.

So going to the feed fence is being stimulated by cooling and feeding. When the cows keep the normal feed intake the milk production will follow. In the waiting area for the milking robot we have sensors which automatically trigger cow cooling. Our control system gives you the possibility to fully adjust and automate all cooling cycles in the different zones.

*Compared to systems with sprinkling without automated control

Light beam sensor

When you activate the cooling system only when cows are present you can reduce significantly on the water you spend and on running costs of the fans.

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