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The Animal Health Service (DGS) has not yet been able to identify the cause of leg problems reported in white laying hen farms. with an injury to the scaly part of the legs and toes Injuries are mainly observed at the beginning of production It seems, according to the DG, that the problem is caused by a specific pathogen, parasites, toxins or tumors. there seems to be a connection with the breed, the breeder, the food supplier, the system or the light source in the barn.
The severity of the symptoms varies: in some couples, the skin is slightly damaged; Herd production does not suffer from poultry problems, poultry farmers have taken various measures and sometimes positive results have been obtained. Statutes the GD. The dimming of the light, the transition to red light, the supply of milk powder, the administration of zinc and the administration of choline have had a positive effect in half or more cases .
The results of the research were obtained survey of poultry farmers facing leg problems in their chickens. The DG would like to do a follow-up study focused on light management in the barn. In addition, GD will discuss with the University of Utrecht and the University of Wageningen & Research there are more fundamental causes.
source: Farm Today, 18/07/18
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