The internal egg temperature (embryo temperature) of eggs during incubation is determined by the heat production of the embryos and the heat loss of the eggs.

The three main factors that determine heat loss of eggs is air temperature, air velocity and the evaporation of sprayed water.

In many incubators we see that the eggs in the middle of the trollies (buggies) are warmer than the eggs at the top or at the bottom. This is due to the fact that although air temperature is equal everywhere, air velocity and water evaporation is often more at the top and bottom than at the middle.

To more or less compensate for this uneveness in temperature, we can use the so-called texas transfer. With this system, we transfer trays from the middle, hot positions of the trolley towards top or bottom, cold positions of the trolley. This system is orignally developed for Jamesway multi-stage setters, but the principle can be used for other machines as well

The normal working order for texas transfer depends on the type of hatcher. Some hatchers use drawers in a trolley, that can be pulled out, filled and placed back in its original position. With these machines we normally start at the top of the setter trolley and transfer to the middle of the hatcher, working upwards, so that the middle trays of the setter are at the top position in the hatcher. Once the top of the hatcher is reached, people continue by starting at the bottom of the hatcher trolley, again working upwards (see drawing)

If a hatcher is used where the trays are stacked, we normally start transferring from the middle of the setter trolley and work downwards. Then, if the lowest rack is transferred, we continue from the top of the setter trolley, again working downwards.

The internal egg temperature (embryo temperature) of eggs during incubation is determined by the heat production of the embryos and the heat loss of the eggs.

The three main factors that determine heat loss of eggs is air temperature, air velocity and the evaporation of sprayed water.

In many incubators we see that the eggs in the middle of the trollies (buggies) are warmer than the eggs at the top or at the bottom. This is due to the fact that although air temperature is equal everywhere, air velocity and water evaporation is often more at the top and bottom than at the middle.

To more or less compensate for this uneveness in temperature, we can use the so-called texas transfer. With this system, we transfer trays from the middle, hot positions of the trolley towards top or bottom, cold positions of the trolley. This system is orignally developed for Jamesway multi-stage setters, but the principle can be used for other machines as well

The normal working order for texas transfer depends on the type of hatcher. Some hatchers use drawers in a trolley, that can be pulled out, filled and placed back in its original position. With these machines we normally start at the top of the setter trolley and transfer to the middle of the hatcher, working upwards, so that the middle trays of the setter are at the top position in the hatcher. Once the top of the hatcher is reached, people continue by starting at the bottom of the hatcher trolley, again working upwards (see drawing)

If a hatcher is used where the trays are stacked, we normally start transferring from the middle of the setter trolley and work downwards. Then, if the lowest rack is transferred, we continue from the top of the setter trolley, again working downwards.The internal egg temperature (embryo temperature) of eggs during incubation is determined by the heat production of the embryos and the heat loss of the eggs.

The three main factors that determine heat loss of eggs is air temperature, air velocity and the evaporation of sprayed water.

In many incubators we see that the eggs in the middle of the trollies (buggies) are warmer than the eggs at the top or at the bottom. This is due to the fact that although air temperature is equal everywhere, air velocity and water evaporation is often more at the top and bottom than at the middle.

To more or less compensate for this uneveness in temperature, we can use the so-called texas transfer. With this system, we transfer trays from the middle, hot positions of the trolley towards top or bottom, cold positions of the trolley. This system is orignally developed for Jamesway multi-stage setters, but the principle can be used for other machines as well

The normal working order for texas transfer depends on the type of hatcher. Some hatchers use drawers in a trolley, that can be pulled out, filled and placed back in its original position. With these machines we normally start at the top of the setter trolley and transfer to the middle of the hatcher, working upwards, so that the middle trays of the setter are at the top position in the hatcher. Once the top of the hatcher is reached, people continue by starting at the bottom of the hatcher trolley, again working upwards (see drawing)

If a hatcher is used where the trays are stacked, we normally start transferring from the middle of the setter trolley and work downwards. Then, if the lowest rack is transferred, we continue from the top of the setter trolley, again working downwards.

The internal egg temperature (embryo temperature) of eggs during incubation is determined by the heat production of the embryos and the heat loss of the eggs.

The three main factors that determine heat loss of eggs is air temperature, air velocity and the evaporation of sprayed water.

In many incubators we see that the eggs in the middle of the trollies (buggies) are warmer than the eggs at the top or at the bottom. This is due to the fact that although air temperature is equal everywhere, air velocity and water evaporation is often more at the top and bottom than at the middle.

To more or less compensate for this uneveness in temperature, we can use the so-called texas transfer. With this system, we transfer trays from the middle, hot positions of the trolley towards top or bottom, cold positions of the trolley. This system is orignally developed for Jamesway multi-stage setters, but the principle can be used for other machines as well

The normal working order for texas transfer depends on the type of hatcher. Some hatchers use drawers in a trolley, that can be pulled out, filled and placed back in its original position. With these machines we normally start at the top of the setter trolley and transfer to the middle of the hatcher, working upwards, so that the middle trays of the setter are at the top position in the hatcher. Once the top of the hatcher is reached, people continue by starting at the bottom of the hatcher trolley, again working upwards (see drawing)

If a hatcher is used where the trays are stacked, we normally start transferring from the middle of the setter trolley and work downwards. Then, if the lowest rack is transferred, we continue from the top of the setter trolley, again working downwards.