Shell Defects
Fly marks
Description
Fly marks are caused by flies leaving droppings on the egg shell.
Incidence
This defect should not occur under good management. Any incidence is unacceptable.
| Cause | Control |
|---|---|
| Eggs exposed to large numbers of flies | Control flies on the farm by maintaining a high level of hygiene, by keeping manure dry and not allowing it to build up excessively and, when necessary, by using approved insecticides. Use UV fly traps in egg-handling rooms. Put fl y screens on doors and windows in handling, packing and storage rooms. Collect eggs frequently. Store eggs in a coolroom. |
COPYRIGHT NOTICE: OPTIMUM EGG QUALITY - A PRACTICAL APPROACH
© The State of Queensland, Australia (through its Department of Primary Industries and Fisheries) and DSM Nutritional Products Ltd., 2007. No part of this publication may be reproduced, copied or transmitted save with prior written permission of Director, Intellectual Property Commercialisation Unit, Department of Primary Industries and Fisheries, GPO Box 46 Brisbane, Queensland, Australia 4001, and DSM Nutritional Products Ltd.
© The State of Queensland, Australia (through its Department of Primary Industries and Fisheries) and DSM Nutritional Products Ltd., 2007. No part of this publication may be reproduced, copied or transmitted save with prior written permission of Director, Intellectual Property Commercialisation Unit, Department of Primary Industries and Fisheries, GPO Box 46 Brisbane, Queensland, Australia 4001, and DSM Nutritional Products Ltd.
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