模糊综合评判法评价两种日粮对乌金猪和长白猪肉品质的影响

发布时间：2018-09-18 09:09

【摘要】：【目的】旨在应用模糊综合评判方法评价两种日粮对乌金猪和长白猪肉品质的影响。【方法】试验采用2(品种)×2(日粮)随机分组设计,选取体重60 kg左右的乌金猪和长白猪各18头,每品种设2个处理组,每处理3个重复,每重复3头,分别饲喂乌金日粮(WJ)和NRC日粮,100 kg体重时屠宰测定9项肉品质指标,建立猪肉品质模糊综合评判模型,采用显著性检验方法和猪肉品质模糊综合评判模型分别评价肉品质。【结果】(1)应用显著性检验分析,日粮因素和两因素交互作用对肉品质9项检测指标的影响差异不显著(P0.05),品种因素间比较长白猪L_(24h)~*和失水率检测值显著高于乌金猪(P0.05);饲喂WJ日粮处理组猪肉的L_(24h)~*、a_(24h)~*、b_(24h)~*、大理石纹、剪切力检测值优于饲喂NRC日粮的处理组;(2)应用猪肉品质模糊综合评判模型,肉品质按优到劣为:WW组(乌金猪WJ日粮)LW组(长白猪WJ日粮)WN组(乌金猪NRC日粮)LN组(长白猪NRC日粮),模糊综合评判值与大理石纹评分和滴水损失呈显著正相关(P0.05)。【结论】饲喂WJ日粮相比饲喂NRC日粮乌金猪和长白猪肉品质有明显的改善作用,模糊综合评判方法能快速定量地获得肉品质评价结果。
[Abstract]:[objective] to evaluate the effects of two diets on the quality of Wujin pig and Landrace pork by fuzzy comprehensive evaluation. [methods] the experiment was conducted with 2 (variety) 脳 2 (diet) randomized grouping design. 18 black gold pigs and 18 Landrace pigs weighing about 60 kg were divided into 2 treatment groups, 3 replicates per breed and 3 replicates per breed. Nine meat quality indexes were measured by slaughtering and determining the meat quality indexes of (WJ) and NRC diets fed with 100 kg body weight, respectively. The fuzzy comprehensive evaluation model of pork quality was established, and the significance test method and the pork quality fuzzy comprehensive evaluation model were used to evaluate the meat quality respectively. [results] (1) significant test analysis was used. The effects of dietary factors and two factors interaction on meat quality were not significantly different (P0.05), but the detection values of L24 h and water loss rate of Landrace white pigs were significantly higher than those of Wujin pigs (P0.05). The test value of shear stress was better than that of the treatment group fed with NRC diet. (2) the fuzzy comprehensive evaluation model of pork quality was used. The meat quality of WW group (WJ diet of Wujin pig), LW group (WJ diet of Landrace pig), WN group (NRC diet of Wujin pig) and LN group (NRC diet of Landrace pig) were excellent to bad. The fuzzy comprehensive evaluation value was positively correlated with marbling score and drip loss. (P0.05). [conclusion] compared with NRC diet, WJ diet can improve the quality of Wujin pig and Landrace pork. The evaluation results of meat quality can be obtained quickly and quantitatively by fuzzy comprehensive evaluation method.
【作者单位】：云南农业大学动物科学技术学院云南省动物营养与饲料重点实验室;云南省农村科技服务中心;昆明云岭广大种禽饲料有限公司;云南西尔南饲料有限公司;
【基金】：云南省自然科学基金重点项目(2005C0008Z)
【分类号】：S828.5

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