Sinisa Kljajic

Very nice explanation. Can you add something about extra retinal perception of light in poultry? It's very interesting and probably not investigated completely. Kind regards

If it's during winter, poor ventilation is of highest importance!!!

The main cause is heart failure so efforts should be done on preventing cardiovascilar issues. Lighting programme, slowing down concerning weight gain during grower period, using compensatory growth potential... Of course, quality of vitamines is crucial.