杜陆与杜隆陆猪生长、胴体及肉质性状的比较分析

doi:10.11843/j.issn.0366-6964.2018.12.006

Abstract

Abstract:

The present study aimed to compare the growth, carcass and meat quality traits of progeny from Duroc (♂)×Luchuan pigs (♀) (referred as Dulu pigs, DLC) and progeny from Duroc (♂)×(Longlin (♂)×Luchuan (♀)) (referred as Dulonglu pigs, DLLC), and to confirm the feasibility of three-way crosses. DLC (n=295) and DLLC (n=91) pigs with an average age of 7 months old and a body weight of about 75 kg were slaughtered, and the carcass traits including carcass straight length, carcass slanting length, backfat thickness, loin eye muscle area, and meat quality traits including muscle color score, pH, drip loss, marbling and intramuscular fat content were measured. The results showed that:1) The nursey weight of Dulu pigs ((17.00±3.73) kg, n=460) was significantly higher than that of Dulonglu pigs ((14.62±2.60) kg, n=262) (P=3.74×10^-7); The average daily gain of Dulonglu pigs from weaning to slaughter ((402.23±48.94) g·d^-1, n=74) was significantly higher than that of Dulu pigs ((366.03±57.86)g·d^-1, n=242) (P=8.96×10^-7). 2) The carcass straight length and carcass slanting length of the Dulu pigs ((78.68±3.78) cm, (67.14±2.81) cm, n=189) were significantly lower than those of the Dulonglu pigs ((80.55±3.13) cm, (68.26±2.59) cm, n=88) (P=5.79×10^-5, P=0.003); The average adjusted loin eye muscle area of Dulonglu pigs ((31.65±4.29) cm², n=91) was slightly greater than that of Dulu pigs ((30.84±6.70) cm², n=295), but the difference was not significant. 3) There were no significant differences in meat quality traits between DLLC and DLC pigs. The study shows that the Dulonglu pigs display a faster growth rate and better carcass performance than Dulu pigs, and maintained the excellent meat quality, which ensuring a better economic benefits. Therefore, the present study provides a new way for the utilization of local pig breeds, especially for high-quality pork production.

CLC Number:

S828.2

LIU Ying, LONG Huan, NIU Li-zhu, MA Ting-ting, LIU Yan, ZHANG Xin-yi, WANG Mu-feng, LIN De-yuan, HUANG Hua-wei, LI Xin-yun, ZHAO Shu-hong, XU Xue-wen. Comparison of Growth, Carcass and Meat Quality Traits between Dulu and Dulonglu Pigs[J]. ACTA VETERINARIA ET ZOOTECHNICA SINICA, 2018, 49(12): 2576-2583.

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Comparison of Growth, Carcass and Meat Quality Traits between Dulu and Dulonglu Pigs

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