Ventilation requirements for Cattle farms :
Agricultural buildings in Britain have traditionally served many purposes but as more specialist buildings are being built it's important to understand the ventilation needs of the new buildings as well as the negative impact of an ineffective airflow.
what considerations would the producer have had before building his farm ?
Okay we need to first of all decide exactly what we're trying to achieve ?
And that is getting rid of excess heat ,excess water vapor , excess organisms and viruses from the building .
We need an even distribution of air through the building and the correct air speed .
To achieve this we need to know the size of the building and the amount of livestock and the roof pitch and we also at the end of this we need to get the whole thing to work in the most miserable canvased October/November day when it's horrible and foggy out there .
So that's what we're trying to achieve as far as disease and reduction of concern we'll see considerable benefits in less environmental problems.
For example mastitis because you've got a drier atmosphere less stamp and the other thing is gonna be as far as the respiratory issues for cattle are concerned that will also see an improvement .
We can look at inlets and outlets on a building as well for ventilation but is aren't we just talking really about doors and windows.
Well it's a little bit more technical than that but you're absolutely right it is trying to get the right balance of inlets to outlets and to achieve this we need to make some calculations it's not a guess we can do some calculations to achieve this and there are some ballpark figures if you like for as far as the outlet is concerned .
We can take for every three meters of building widths you can have five centimeters of an outlet through the length of the building .so we have got ballpark figures but we actually do proper measurements as well .
What is the Stack effect and how important is the stack effect ??
The stack effect is extremely important because it's working with nature.
Because we're working on the principle that warm air rises and in that warm air when you've got livestock in the building you've got all sorts of organisms and moisture and dampness and we need to get rid of that through the outlets in the roof , so the stack effect really is taking aware the way this hot air and organisms as quickly as possible through that roof vent .
The good news for most farmers is that most buildings can achieve adequate ventilation without the need of using mechanical means . Achieving good ventilation naturally that's all very well with a new building ....
But what about existing buildings or ones that are having a change of use ?
They're usually quite problematic alone and first of all looking for telltale signs and looking for thus the cobwebs you can see traces of condensation where the waters been running down the roof sheets on and onto the animals hand-in-hand .
with ventilation in calf housing it's also critical to have good drainage because a lot of moisture from the bedding will add to the problem of moisture in the atmosphere and that in itself will lead to more issues and problems with disease so if we can improve drainage and make everything we can to get rid of this moisture it will be of great benefit to the atmosphere and the animal .
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Ventilation requirements for Cattle farms :
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Agricultural buildings in Britain have traditionally served many purposes but as more specialist buildings are being built it's important to understand the ventilation needs of the new buildings as well as the negative impact of an ineffective airflow.
what considerations would the producer have had before building his farm ?
Okay we need to first of all decide exactly what we're trying to achieve ?
And that is getting rid of excess heat ,excess water vapor , excess organisms and viruses from the building .
We need an even distribution of air through the building and the correct air speed .
To achieve this we need to know the size of the building and the amount of livestock and the roof pitch and we also at the end of this we need to get the whole thing to work in the most miserable canvased October/November day when it's horrible and foggy out there .
So that's what we're trying to achieve as far as disease and reduction of concern we'll see considerable benefits in less environmental problems.
For example mastitis because you've got a drier atmosphere less stamp and the other thing is gonna be as far as the respiratory issues for cattle are concerned that will also see an improvement .
We can look at inlets and outlets on a building as well for ventilation but is aren't we just talking really about doors and windows.
Well it's a little bit more technical than that but you're absolutely right it is trying to get the right balance of inlets to outlets and to achieve this we need to make some calculations it's not a guess we can do some calculations to achieve this and there are some ballpark figures if you like for as far as the outlet is concerned .
We can take for every three meters of building widths you can have five centimeters of an outlet through the length of the building .so we have got ballpark figures but we actually do proper measurements as well .
What is the Stack effect and how important is the stack effect ??
The stack effect is extremely important because it's working with nature.
Because we're working on the principle that warm air rises and in that warm air when you've got livestock in the building you've got all sorts of organisms and moisture and dampness and we need to get rid of that through the outlets in the roof , so the stack effect really is taking aware the way this hot air and organisms as quickly as possible through that roof vent .
The good news for most farmers is that most buildings can achieve adequate ventilation without the need of using mechanical means . Achieving good ventilation naturally that's all very well with a new building ....
But what about existing buildings or ones that are having a change of use ?
They're usually quite problematic alone and first of all looking for telltale signs and looking for thus the cobwebs you can see traces of condensation where the waters been running down the roof sheets on and onto the animals hand-in-hand .
with ventilation in calf housing it's also critical to have good drainage because a lot of moisture from the bedding will add to the problem of moisture in the atmosphere and that in itself will lead to more issues and problems with disease so if we can improve drainage and make everything we can to get rid of this moisture it will be of great benefit to the atmosphere and the animal .
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