摘要
[目的]探讨不同放养月龄和性别对藏区藏猪屠宰性能的影响。[方法]分别随机选取12头藏猪(公母各半)进行12月龄和24月龄传统模式放养,屠宰后进行胴体、产肉性能和肉质性状测定。[结果]与12月龄相比,24月龄藏猪的活体重和胴体重极显著提高(P<0.01),而屠宰率、胴体长、眼肌面积和背膘厚度显著提高(P<0.05);12月龄公、母藏猪的胴体和产肉性能差异不显著(P>0.05)。24月龄公猪的瘦肉率和眼肌面积极显著高于母猪(P<0.01),而母猪的皮脂率显著高于公猪(P<0.05)。24月龄的藏猪pH_2和肉色L_2、b_2极显著高于12月龄藏猪(P<0.01),肌肉的韧度也显著高于12月龄藏猪(P<0.05);12月龄母猪腰肌24 h红度值显著高于公猪(P<0.05),其他肉质性状均没有显著差异;24月龄公猪的肉色显著好于母猪(P<0.05)。[结论]该研究可为藏猪屠宰提供参考依据。
[Objective]To study the effects of different stocking ages and sex on the slaughter performance of Tibetan pigs in Tibetan areas.[Method]Twelve Tibetan pigs(each half of the male and female )were randomly selected for stocking 12 and 24 months respectively, and the carcass, meat production and meat quality were determined after slaughter.[Result]The live weight and carcass weight of Tibetan pigs at 24 months of age were extremely significantly increased compared with 12-month-old Tibetan pigs( P<0.01 ),and their slaughter rate,carcass length,eye muscle area and back fat thickness were significantly increased than those of 12-month-old Tibetan pigs( P <0.05);Male and female 12-month-old Tibetan pigs had no significant difference in the carcass and meat production( P>0.05 ).The lean meat ratio and eye muscle area of 24-month-old boars were extremely significantly higher than that of sows( P<0.01 ),and the sebum rate of sows were significantly higher than that of boars( P<0.05 ).pH 2 and meat color L 2,b 2 of 24-month-old Tibetan pigs were extremely significantly higher than those of 12-month-old Tibetan pigs( P<0.01 ),and the toughness of muscles was significantly increased than that of 12-month-old Tibetan pigs( P<0.05 ).24 h redness degree of lumbar muscles of 12-month-old sows were significantly higher than that of boars( P<0.05 ),and other meat quality traits had no significant difference.The meat color of 24-month-old Tibetan boars was significantly better than that of sows( P<0.05 ).[Conclusion]The research could provide references for the slaughter of Tibetan pigs.
作者
杨琼
刘进远
张顺华
朱砺
YANG Qiong;LIU Jin-yuan;ZHANG Shun-hua(Chengdu Agricultural College,Chengdu,Sichuan 611130;Sichuan Animal Science Academy,Chengdu,Sichuan 610066;College of Animal Science and Technology,Sichuan Agricultural University,Chengdu,Sichuan 611130)
出处
《安徽农业科学》
CAS
2019年第6期94-96,共3页
Journal of Anhui Agricultural Sciences
基金
四川省科技支撑计划项目(2016NZ0089
16ZC2838
2018KZ0057)
关键词
藏猪
放养
年龄
性别
屠宰性能
Tibetan pigs
Stocking
Age
Sex
Slaughter performance
