[ECG telemetry in cows].

Abstract

By the method of ECG telemetry was investigated the cardiac, activity in 245 cows, from which 125--in the lactation period, 48--pregnant and 112--new-calved. It was established that the cardiac frequency in pregnant cows is 83.3 min-1, in new-calved--83.7 min-1 and in milch-cows--86.3 min-1. The elements of ECG are similar in value for the separated groups… (More)

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