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Ventilation shutdown (VSD) is a means to kill livestock by suffocation and heat stroke in which airways to the building in which the livestock are kept are cut off. It is used for mass killing — usually to prevent the spread of diseases such as avian influenza .
The heating and ventilation systems in a poultry house must be continuously monitored to keep the moisture content of the litter controlled so that the litter remains friable (easily broken up or crumbly). If the litter becomes too wet and the litter is allowed to become "sealed", then the birds will be living on a damp, slippery and sticky ...
A "minimum ventilation" system is required for the heating period to provide a certain amount of fresh air. A separate "tunnel ventilation" system with evaporative pad cooling is desired (minimum wind speed is 400 fpm) for hot weather in the later stage of the bird's growth. Air inlets may be automatically adjusted.
Poultry farming is the form of animal husbandry which raises domesticated birds such as chickens, ... They have ventilation systems and heaters that function as ...
It is also designed to allow maximum comfort of the animal and to provide a secure, chew proof environment. An external ventilation unit supplies the cages with fresh HEPA-filtered air which passes through the filter lids. The ventilation-system mostly consists of two tubes for ingoing and outgoing air.
Foam depopulation was developed in 2006 in response to a 2004 outbreak of H7N2. [8] It received conditional approval the same year in the US by the USDA-APHIS. [9]In the 2015 H5N2 outbreak in the US, foaming was the primary method used to kill poultry en masse with it employed at 66% of locations. [10]
Precision livestock farming (PLF) is a set of electronic tools and methods used for the management of livestock.PLF involves automated monitoring of animals to improve their production, reproduction, health, welfare, and impact on the environment.
Vent sexing in Wenchang, Hainan, China (2014) Vent sexing, also known simply as venting, involves squeezing the feces out of the chick, which opens up the chick's anal vent (called a cloaca) slightly, allowing the chicken sexer to see if the chick has a small "bump", which would indicate that the chick is a male. Some females also have bumps ...
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