An Jeong Yeon, Yong Hae In, Kim So Yeon, Yoo Han Bit, Kim Yoo Yong, Jo Cheorun
Department of Agricultural Biotechnology, Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea.
Institute of Eco-friendly Economic Livestock, Seoul National University, Pyungchang 25354, Korea.
Korean J Food Sci Anim Resour. 2017;37(2):191-199. doi: 10.5851/kosfa.2017.37.2.191. Epub 2017 Apr 30.
The objective of this study was to evaluate the effect of different levels of palm kernel meal (PKM), an alternative to corn, on the quality of pork. A total of 72 crossbred pigs ([Yorkshire × Landrace] × Duroc) were assigned into four dietary treatments (PKM level of 0, 4, 8, or 12%). After 12 wk, one pig of median weight in each pen was selected and slaughtered to analyze meat quality. The color, free radical scavenging activity, lipid oxidation, texture, composition of fatty acids, and sensory qualities of pork loin were evaluated post slaughter. When the levels of PKM in the diet increased, the *-value of pork loin decreased, whereas *-value and total saturated fatty acids increased. 2-Thiobarbituric acid reactive substance (TBARS) values of pork loin were lower in groups treated with 8 and 12% PKM than in the control group at day 0; this difference, however, was not observed at day 3 and 7. The results of texture analysis showed that increasing the PKM ratio decreased hardness, chewiness, and springiness at day 7. The sensory test, however, indicated no differences between the control and treated groups. These findings show that finisher pigs could tolerate PKM as a replacement for corn; PKM did not negatively affect the quality of pork, indicating that it can be utilized as feed.
本研究的目的是评估玉米替代物——不同水平的棕榈仁粕(PKM)对猪肉品质的影响。总共72头杂交猪([约克夏×长白]×杜洛克)被分配到四种日粮处理组(PKM水平分别为0%、4%、8%或12%)。12周后,从每栏中挑选一头体重处于中位数的猪进行屠宰,以分析肉质。屠宰后对猪里脊肉的颜色、自由基清除活性、脂质氧化、质地、脂肪酸组成和感官品质进行评估。当日粮中PKM水平升高时,猪里脊肉的值降低,而值和总饱和脂肪酸增加。在第0天,用8%和12% PKM处理的组中猪里脊肉的2-硫代巴比妥酸反应性物质(TBARS)值低于对照组;然而,在第3天和第7天未观察到这种差异。质地分析结果表明,在第7天增加PKM比例会降低硬度、咀嚼性和弹性。然而,感官测试表明对照组和处理组之间没有差异。这些研究结果表明,育肥猪能够耐受PKM替代玉米;PKM对猪肉品质没有负面影响,表明它可以用作饲料。