48 LOHMANN TIERZUCHT › MANAGEMENT GUIDE 48 QUALITY ASSURANCE Control activities in order to monitor the process in one hatchery Process Control action Quality control Analysis measurement Monitoring Quality indicator Eggs reception and storage Inspection and eggs monitoring Visual inspection of trolleys Check if eggs have arrived in good condition, are well positioned on trays, are not dirty or damaged, and are leaking through trays Every trolley Compare with targets Eggs surface sampling Bacteria (colonies, Salmonella and Aspergillus), other mould and yeasts Every flock – before fumigation Reduce colonies. No Salmonella. No Aspergillus Eggs weight Scale measurement Every flock Egg weight (g) Eggs grading, selection and transfer Data collection from eggs candling and transfer process Number of eggs not processed % of eggs Every flock Small eggs – big eggs; hairline cracks Eggs fumigation Fumigation control Eggs surface sampling Bacteria (colonies, Salmonella and Aspergillus), moulds and yeasts Every flock – before fumigation Reduced colonies. No Salmonella, no Aspergillus Clean eggs storage Monitoring environment Cool storage Temperature and humidity Every day Compare with targets Eggs short periods of incubation during storage S.P.I.D.E.S. S.P.I.D.E.S. Incubators Process control Time and temperature Every S.P.I.D.E.S. Compare with targets Eggs incubation setters Incubation monitoring Eggs weight Scale measurement Every flock Egg weight (g) Setters activity control Check next parameters: - Temperature - Humidity - CO2 - Ventilation - Turning Every setter Visual check of gra- phics and comparison with targets Infertile and early dead control at 7 days If necessary By flock Compare with targets Eggs candling and transfer Data collection from eggs candling and transfer process Clear eggs and early dead Every transferred trolley Compare with targets Eggs weight at transfer Scale measurement Every flock Egg weight loss (%) 3. Visually inspect the trolleys in order to check that the eggs have arrived in good condition, are well positioned on trays, are not dirty and do not present great damage (content leaking through trays). 4. After inspection, place the trolleys in the transfer room in order to further process the eggs. Other measures that can be used in order to identify and eliminate some hazards: 1. Eggs surface sampling – to be tested microbiologically and for yeasts and moulds. 2. Monitoring temperature and humidity in trucks. 3. Use of a machine for grading in transfer, in order to select the eggs and eliminate eggs with hairline crack. Product analysis There shall be procedures in order to monitor that all specified product require- ments are met, including legal require- ments and specifications. Microbiological, physical and chemical analysis required for this purpose shall be performed internally and/or subcontracted. A test plan shall be drawn up for internal and external analysis, based on hazard analysis and assessment of associated risks, which covers raw materials, finished products as well as processing equipment and packaging materials. The test results shall be documented and periodically evaluated in order to analyse the trend. Corrective measures shall be introduced for any unsatisfactory results.