Ducks (England): Code of Recommendations for the Welfare of Livestock (PB0079)

Disposal of unwanted ducklings and hatchery waste

49. Unwanted ducklings awaiting slaughter should be treated as humanely as those intended for retention or sale.
50. Ducklings should always be killed humanely by a skilled operator. The method which should be used is to place them in an atmosphere with the highest obtainable concentration of CO2 and a source of 100 % CO2, should therefore be used as the disposing agent. This is the most humane method and detailed advice on its use is given in ADAS advisory publication P568. However, where very small numbers of ducklings are involved they may be killed humanely by dislocation of the neck or by decapitation. Whatever method is used the ducklings should be thoroughly inspected afterwards to ensure that all are dead.
51. Methods of killing which involve suffocation by tightly packing the unwanted ducklings in a confined space, or by drowning, or in which irritant liquids such as carbon tetrachloride are allowed to come into direct contact with the ducklings, are inhumane and should not be used.
52. All hatchery waste should be treated (for example, by rapid maceration) so as to kill instantaneously any living embryos.

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