摘要
对271头猪(ES猪231头,斯格猪40头),用五种测验方案,对氟烷测验的判断标准和测验参数的研究表明:猪1-4肢出现40秒以上的持续性、进行性僵直症状即可判断为阳性反应,适宜的测验参数是氟烷浓度4%,氧气流量3L/min。炎热高温环境下氟烷供给量太大是阳性反应猪致死的主要原因。结合屠宰后肉质评定,大约90%的阳性反应猪宰后表现P.S.E.或D.F.D.肌肉。《猪的氟烷测验规程》试行结果表明:父母为阳性反应猪的后代仔猪(5窝34头)均为阳性反应猪。
271 pigs (231 ES herd and 40 Siger) were used to study the standards of determ-ination and parameters for halothane test by five programes. It was demonstrated thathalothane positive reaction was determined by the sustained, increased rigidity of muscleon the 1-4 limbs. For more than 40 seconds the parameters which met the halothanetest were 4% halothane concentration and 3L/min. Flow of oxygen. An overdose ofhalothane was main cause of death of halothane-positive pigs under high ambient envir-onments. The slaughtering results of 100 testing pigs showed that 90% or 17 of 19 ha-lothane-positive pigs were in ES herd (87.5% in Sger). The trial implementatingresults for 'Regulation of Operation for Halothane Test in pig' indicated that the pigletsfrom halothane-positive parents exhibited halothane-positive reaction (34 piglets of 51itters)
出处
《华中农业大学学报》
CAS
CSCD
北大核心
1990年第3期264-270,共7页
Journal of Huazhong Agricultural University
关键词
猪
氟烷
测验
育种
肌肉品质
halothane test
porcine stress syndrome
meat quality
pig
