1·The results show that 12% of over 2 000 sows have yearning relation behaviour. Among them, 8% are emotion lowering depression type and 4% are emotion infuriation excitement type.
结果表明，从观察统计的2 0 0 0余头母猪中具有此种行为的约占12 % ，其中情绪低落抑郁型母猪约占8% ，情绪激怒兴奋型母猪约占4 % 。