HOUSING SYSTEMS BIOSECURITY HOUSING & BROODING EARLY MANAGEMENT LIGHTING NUTRITION HEALTH HATCHING EGG MANAGEMENT 61 61 LOHMANN › MANAGEMENT GUIDE LOHMANN have created a geographical lighting calculator to help you formulate your specific lighting programme for your region. This can be a very useful tool in creating a programme that meets all your requirements. Light stimulation should be based always on body weight and uniformity rather than age, as premature stimulation or insufficient body weight can lead to poor performance, including reduced peak and persistency, higher mortality, and poor eggshell quality. For breeders, a gradual reduction in lighting hours (slow step-down) and delayed stimulation can help achieve the desired hatching egg weight and ensure long-term laying persistency. Early light stimulation can adversely affect the size of the eggs. Adjusting lighting hours during the growing period and timing the start of light stimulation can be tailored to meet specific farm requirements. LIGHTING PROGRAMME In general, lighting programmes must be designed and adjusted to suit your breed, housing system, management, nutrition, body weight, and local needs and requirements. This is why LOHMANN recommends that every lighting programme be tailored individually. INDIVIDUAL LIGHTING PROGRAM LOHMANN LIGHTING PROGRAMME TOOL
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