Title : 
The effect of light and dark periods on heart rate and heart rate variability in male broilers
         
        
            Author : 
Ekwueme-Okoli, Tagbo C. ; Blanchard, Susan M. ; Degermes, L.A. ; Garlich, James D.
         
        
            Author_Institution : 
City University of Hong Kong
         
        
        
        
            fDate : 
Oct. 30 1997-Nov. 2 1997
         
        
        
        
            Abstract : 
This study evaluated the hypothesis that current commercial methods for raising poultry are inadequate for rest to occur. In order to test this hypothesis, heart rate and heart rate variability were measured during light and dark periods. There were no sign&" dif???erences in these variables, which suggests that 1-hr dark periods are insufficient for sleep to occur.
         
        
            Keywords : 
biological effects of optical radiation; electrocardiography; signal processingtics (effects of microwaves, light, laser and other electromagnetic waves)); 1 h; ECG analysis; dark periods; heart rate variability; light periods; male broilers; poultry raising methods inadequacy; rest; sleep; Agricultural engineering; Biology; Birds; Educational institutions; Electrocardiography; Heart rate; Heart rate variability; Pediatrics; Sleep; Testing;
         
        
        
        
            Conference_Titel : 
Engineering in Medicine and Biology Society, 1997. Proceedings of the 19th Annual International Conference of the IEEE
         
        
            Conference_Location : 
Chicago, IL, USA
         
        
        
            Print_ISBN : 
0-7803-4262-3
         
        
        
            DOI : 
10.1109/IEMBS.1997.754528