Comparative study on growth performance and meat quality of Luchuan pigs and Dulu pigs

WU Xianhua; FENG Ming; YANG Xunye; PAN Hongli; QIN Yang; MA Qinglan; PENG Ying; HE Jiakang

doi:10.13557/j.cnki.issn1002-2813.2026.01.020

Abstract：The experiment aimed to compare the differences between Luchuan pigs and their hybrid offspring Dulu pigs(Duroc ♂ × Luchuan♀),in terms of growth performance,meat quality,and muscle nutritional composition.Sixteen healthy Luchuan pigs(group LC)and sixteen Dulu pigs(group DL)at 90 days of age(half male and half female)were selected.Their body weight and body measurement indexes were determined at 90,150,210 and 270 days of age.The longissimus dorsi muscle was collected to determine meat quality traits,amino acid content,and fatty acid content.The trial lasted for 180 days.The results showed that body weight at 150,210 and 270 days of age,average daily gain and average daily feed intake of group DL were significantly higher than in group LC(P＜0.05),and the feed to gain ratio was significantly lower than in group LC(P＜0.05).At 210 and 270 days of age,all body measurement indexes of group DL were significantly higher than in group LC(P＜0.05).Muscle pH24h value and drip loss of group DL were significantly lower than in group LC(P＜0.05),while inosine acid content,loin eye area,and protein content were significantly higher than in group LC(P＜0.05).The contentrations of glutamic acid,threonine,aspartic acid,valine,glycine,isoleucine,and histidine in the longissimus dorsi muscle of group DL were significantly higher than in group LC(P＜0.05).The total fatty acid content of group DL was significantly lower than in group LC(P＜0.05).The study shows that through crossbreeding improvement,Dulu pigs exhibit significant advantages in growth performance,meat production performance,and meat nutritional composition,achieving more efficient nutrient utilization and higher-quality meat output,which better aligns with current nutrition-oriented consumer demands.