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Teil 3 Seite 2-5
the rumen is spin-dried and scalded at 85 °C to achieve the loosening of the mucous
membrane.
The stomach contents are removed in a similar way as the rumen contents.
In the bowel de-sliming stage, the small intestines from pigs, cattle, and sheep are freed
from the mucous membrane layers of the bowel walls, as these are prone to putrefaction.
Partly, the hides are conserved in the slaughterhouses by salting. Here, no wastewater
must be produced. In Germany, the major part of the hides is cooled and delivered to tan-
neries for immediate preparation.
2.1.1.9 Splitting
The disembowelled carcasses are cut into two halves by splitting along the spine. Often,
they are also cut into quarters. The splitting process is achieved by using semi or fully
automatic splitting stages (saws). The saw blade of band-saws and circular saws and the
blades of cleavers must permanently be rinsed to free the cutting areas from fat and bone
meal.
2.1.1.10 Cooling
The carcass parts and the organs taken out during the disembowelling are then cooled
in the cold storage room. Cooling technology is used in slaughterhouses for the following
purposes:
• Cooling of the carcass halves
• Cooling of rooms
• Cooling of the hides
• Cooling of the blood
2.1.2 Slaughter of poultry
These are plants which slaughter mainly poultry, but also boiling fowl, gees, ducks, or
turkeys. The slaughtering of large poultry plays in Germany a minor role and is as a rule
not done in the same companies which do young mast poultry slaughtering.
Below, there is a brief sketch of the single processes of the slaughtering and processing
of poultry. Figure 2-2 gives a schematic presentation. The slaughtering is done in belt
production with a throughput of 3.000 to 6.000 animals per hour and a maximum capacity
of up to 12.000 pieces/h.
The following diagram, which was taken from the "AT Guidance for Specific Sub-sectors
within the Food and Drink Industry Poultry Processors Final Report: Main Steps in Poultry
Processing, gives an overview over the processes and the pertaining emissions of poultry
slaughtering.