Cleaning and disinfection procedure
Preparation
Dry cleaning
Wet cleaning
Disinfection
This kills all remaining pathogens that survived the previous steps. For good performance:
- Use only reliable and efective disinfectants.
- Apply the appropriate dose.
- Respect contact time and temperature.
- Follow the label instructions.
- Use appropiate PPE (personal protective equipment).
Fumigation
- Fumigate after liquid disinfection has been completed and the equipment has been installed again.
- Follow the label instructions.
- Use appropiate PPE (personal protective equipment).
Sampling
Sample after cleaning and disinfection, check if the microbiological results are ok. Corresponding sampling and laboratory analysis should be performed: at least eight samples per house should be taken, distributed randomly as shown in table 1. If results are unacceptable, take corrective measures.
Cleaning and disinfection procedures
Stocking Density
This table is a general recommendation and you should adhere to your own country’s recommendations.
Pre Heating the rearing house
Pre-heat the house before the chicks arrive. Preheat 24 hours before arrival in warm weather and 48 hours in cold weather.
Temperature recommendation:
- Soil: 24 °C Litter: 30 °C Air: 34 °C
Do not only heat the air, but also litter, soil and equipment. Chicks gain and lose temperature easily through conduction. In case of floor rearing, bring in the litter after preheating to allow the concrete to reach the desired temperature (24 °C).
Rearing house preparation | Flooring Rearing system
Distribute litter and paper
Old litter from the previous flock should not be used. Using old litter increases the pressure of disease and may cause increased chick morbidity or mortality. Insoluble grit should be fed if the chicks are on a type of (e.g. shavings) that will be eaten by the chicks.
Feeding system
Supplemental feeder trays should be provided within the brooder ring for a few days until all chicks are eating from the regular feeding system. Ensure adequate feeder space is provided. Cover at least 50 % of the brooding area with paper and starter feed over the paper.
Drinking system
Chicks must have unlimited access to clean and fresh water (20 – 25 °C). During the first days, cups or nipples should be checked and triggered several times per day to stimulate the chicks to drink. Supply additional drinkers which can be easily accessed until the chicks are drinking from the regular water system.
If using nipple drinkers, reduce the water pressure for a few days. This allows droplets to develop which help stimulate the chicks to drink.
Ventilation
Guarantee enough fresh air, but no draughts. In conventional pancake brooders, use chick guards (i.e. new cardboard) to prevent drafts. Start with a diameter of approx. 2 m in cool weather and approx. 4 m in hot weather. Enlarge the ring every couple of days and remove by six or seven days of age.
Cage rearing preparation (cage rearing systems)
Distribution
Paper
Feeding system
Abundant feed should be provided in the feeders and additionally on the papers inside the cages before the chicks are housed to stimulate feed intake. When there is a feedchain inside the cage, fill this chain up to 100 % (Manual) to reduce mortality when you run the feedchain in the first day(s).
Drinking system
360-activated nipples in the brooding cages are preferred. If unavailable, provide cup drinkers during the first week. Reduce the water pressure on the nipples to make triggering the nipples easier and attract the chicks by the drop formation. flush the lines and cup drinker just before housing the chicks.
Chick Housing
Transport
Transport can have a critical impact on oneday old chick quality. The correct temperature and ventilation levels should be guaranteed during transport. The transport time should be as short as possible. If transport exceeds more than 10 hours, the addition of a hydration product crates is recommended. For longer transport it is recommended to use temperature and humidity loggers.
Unloading the chicks
Chick quality
On arrival the chicks must be warm and active. Check that there is no abnormal mortality in the crates. The chicks’ bodyweight should be measured individually once housing has been completed. Check the body temperature as explained on page 14 and adjust the house temperature. Record the mortality at housing and inform the hatchery. Also inform them about the chick quality.