The Use of Radio Telemetry Devices to Measure Temperature and Heart Rate in Domestic Fowl

摘要: Abstract Since modern, intensive, husbandry systems may affect adversely both the productivity and welfare of domestic fowl, an understanding effects short term stress is urgently required. Work has already shown what type situations are liable to frustrate or frighten chickens behavioral responses likely be. In experiments described, these changes were correlated with physiological using radio telemetry techniques, which particularly suitable since they resulted in minimal interference birds. Thin-film hybrid devices, designed transmit temperature electrocardiogram (ECG) signals, attached to, implanted in, hens. The signals picked up on a commercial receiver recorded magnetic tape. ECG analyzed small computer autocorrelation technique give heart rate. Records taken from undisturbed birds get some idea normal range rate during maintenance activities. Birds then exposed various visual auditory frightening stimuli. Shank was found be good indicator Alarm Reaction. Interesting differences fear reactions between strains fowl. ‘Flighty’ hen showed far more avoidance panic stimuli than ‘placid’ strains. However, so-called rose almost as much took longer recover that ‘flighty’