Świątkiewicz Małgorzata, Olszewska Anna, Grela Eugeniusz R, Tyra Mirosław
Department of Animal Nutrition and Feed Science, National Research Institute of Animal Production, Krakowska St. 1, 32-083 Balice, Poland.
Institute of Animal Nutrition and Bromatology, University of Life Sciences in Lublin, Akademicka St. 13, 20-950 Lublin, Poland.
Animals (Basel). 2021 Apr 29;11(5):1277. doi: 10.3390/ani11051277.
The aim of the study was to investigate mixtures comprising corn distillers dried grain with solubles as a partial replacer for soybean meal (SBM) and different dietary fat sources, in order to determine their effect on the meat quality and fatty acid profile. Thirty-two crossbred fatteners were divided into four groups: I-SBM + rapeseed oil, II-cDDGS + rapeseed oil, III-cDDGS + beef tallow, IV-cDDGS + coconut oil. The experiment took place from 60 to 118 kg. At the end of fattening, all pigs were slaughtered and samples of meat () were taken. The fatty acid profile, texture, and quality traits were analyzed. Corn DDGS affected drip loss. Beef tallow and coconut oil improved water holding capacity and drip loss and increased fat content, compared to the control group. The dietary fat type affected the fatty acid composition, iodine value, and consequently some quality traits of meat. However, these relationships varied. Fat content in the meat was inversely correlated with shear force and texture parameters, but positively with tenderness and juiciness. The fatty acid profile significantly influenced cohesiveness, chewiness, resilience and sensory traits, which were the most beneficial in meat with higher fat content and higher fat saturation index.
本研究的目的是调查以玉米干酒糟及其可溶物作为豆粕(SBM)的部分替代品与不同日粮脂肪来源组成的混合物,以确定它们对肉质和脂肪酸谱的影响。32头杂交育肥猪被分为四组:I组为SBM+菜籽油,II组为玉米干酒糟及其可溶物(cDDGS)+菜籽油,III组为cDDGS+牛脂,IV组为cDDGS+椰子油。试验从体重60千克进行到118千克。育肥结束时,所有猪均被屠宰,并采集肉样。分析了脂肪酸谱、质地和品质性状。玉米干酒糟及其可溶物影响滴水损失。与对照组相比,牛脂和椰子油提高了持水能力和减少了滴水损失,并增加了脂肪含量。日粮脂肪类型影响脂肪酸组成、碘值,进而影响肉的一些品质性状。然而,这些关系各不相同。肉中的脂肪含量与剪切力和质地参数呈负相关,但与嫩度和多汁性呈正相关。脂肪酸谱显著影响内聚性、咀嚼性、弹性和感官性状,在脂肪含量较高和脂肪饱和指数较高的肉中这些性状最为有益。