Myer R O, Johnson D D, Knauft D A, Gorbet D W, Brendemuhl J H, Walker W R
Department of Animal Science, University of Florida, Gainesville 32611.
J Anim Sci. 1992 Dec;70(12):3734-41. doi: 10.2527/1992.70123734x.
A high-oleic-acid peanut breeding line was used in a study designed to determine the effects of feeding swine diets containing elevated levels of monounsaturated fatty acids as a means to increase the level of monounsaturates and total unsaturates in the resulting carcass fat. Forty-eight pigs were allotted to four treatments that consisted of corn-soybean meal diets that contained 1) high-oleic peanuts (HOP), 2) regular commercial peanuts (RP), or 3) canola oil (CO), each added at a dietary level to provide 10% added fat/oil, and 4) a control diet with no added fat/oil. The oil of HOP averaged 75% oleic acid vs 60% for CO and 53% for RP. The pigs were fed the experimental diets from 33 to 102 kg BW, after which all pigs were slaughtered. All three dietary oil sources resulted in increases (P < .01) of monounsaturates in the backfat; the HOP diet resulted in the greatest increase (32% greater than control). Both CO and RP increased (P < .01) the level of polyunsaturates by nearly twofold; HOP resulted in a small decrease. Total unsaturates increased (P < .01) by 24, 24, and 27% for HOP, RP, and CO treatments, respectively, over that obtained from the control treatment. Carcass fat was softer/oilier (P < .05) from pigs fed CO and RP diets, but not from those fed HOP diets, compared with carcass fat of pigs fed the control diet. Dietary fat/oil source had no effect (P > .05) on other carcass compositional traits and various meat quality attributes.(ABSTRACT TRUNCATED AT 250 WORDS)
一个高油酸花生育种系被用于一项研究，该研究旨在确定饲喂含高水平单不饱和脂肪酸的猪日粮，以此作为提高最终胴体脂肪中单不饱和脂肪酸和总不饱和脂肪酸水平的一种手段。48头猪被分配到四种处理组，日粮为玉米-豆粕型，分别含有：1）高油酸花生（HOP），2）普通商业花生（RP），或3）菜籽油（CO），每种添加到日粮中的水平为提供10%的额外脂肪/油，以及4）不添加脂肪/油的对照日粮。HOP的油平均含75%油酸，而CO为60%，RP为53%。猪从体重33公斤饲喂至102公斤，之后所有猪被屠宰。所有三种日粮油源均使背膘中的单不饱和脂肪酸增加（P < 0.01）；HOP日粮导致的增加幅度最大（比对照高32%）。CO和RP均使多不饱和脂肪酸水平增加（P < 0.01）近两倍；HOP导致略有下降。与对照处理相比，HOP、RP和CO处理的总不饱和脂肪酸分别增加（P < 0.01）24%、24%和27%。与饲喂对照日粮的猪的胴体脂肪相比，饲喂CO和RP日粮的猪的胴体脂肪更软/含油更多（P < 0.05），但饲喂HOP日粮的猪并非如此。日粮脂肪/油源对其他胴体组成性状和各种肉质属性没有影响（P > 0.05）。（摘要截短为250字）
