1991 - Volume #15, Issue #2, Page #23
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Alarm Signals When Cow Ready To Calf
This first-of-its-kind alarm detects muscular contractions by cow just before birth. It straps onto its back with a rubber belt.
The "Agrimonitor" detects and analyses muscular activity not visible even to the experienced eye. It first warns you that labor has commenced before there's any apparent sign, then war..........


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1991 - Volume #15, Issue #2