Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 560965
Title Method and system for grading hens in a flock
Author(s) Hogewerf, P.H.
Source Octrooinummer: WO2020009578, gepubliceerd: 2020-01-09.
Department(s) Animal Health & Welfare
Publication type Patent
Publication year 2020
Abstract The invention pertains to a method for grading individual poultry hens in a flock, wherein the method comprises the following steps: - when a hen is present in or adjacent to a laying nest, applying a mark to that hen, which mark is invisible to the hens of the flock, - after a marking time period which is at least as long as the expected time interval between the laying of two subsequent eggs by a single hen, determining which hens of the flock do not have a mark, therewith grading the hens into a first class of hens which have at least one mark and a second class of hens which do not have a mark.
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