不同杂交组合猪肥育性能的比较研究

The Study on the Performance of the Growth in the Different Hybrid Combination Swine

本试验通过对长×大(L×Y)、杜×长大(D×LY)、皮杜×长大(PD×LY)3个杂交组合猪的生长肥育、胴体品质及肉质性状进行研究,结果表明:PD×LY杂交组合的日增重、料肉比及屠宰率最优,日增重、屠宰率与L×Y组间差异显著(P<0.05);PD×LY的眼肌面积、后腿比例分别为48.09 cm2、34.23%,为3组合中最高,与L×Y组的差异显著(P<0.05),与D×LY组的差异不显著(P>0.05);D×LY组的肉色评分、嫩度测定结果最佳,组间差异显著(P<0.05);PD×LY组的失水率、熟肉率、嫩度最差,其中熟肉率、嫩度与其它组间差异显著(P<0.05)。综合评定:导入皮特兰猪的血液在提高了日增重、屠宰率、眼肌面积、后腿比例等性状的同时,却导致了肉质的下降;D×LY作为一个经典的杂交组合,生产性能总体稳定。

This experiment carried on the growth,the carcass quality and the meat quality of （L × Y）, （D × LY）and（PD× LY）. The results indicated that： PD× LY was the best on the average-day gain,the feed/gain ration and the slaughter ration, there was significant different with（L× Y）. The eye muscle area and the hind leg ration of （PD× LY）is 48.09 cm^2 ,34.23%, was highest in three combinations. There was different with（L× Y） （P〈0.05）, was not remarkable with（D× LY） （P〉0.05） ; The meat color and the tenderness of （D× LY）was the best, the difference was remarkable （P〈0.05） ; The dehydration rate, the cooked meat rate and the tenderness of（PD× LY） was the worst. The cooked meat rate and the tenderness were remarkable different with other groups （P〈0.05）. The synthesis showed that： the average-day gain, the slaughter ration, the eye muscle area as well as the hind leg ratation were better admired by Pretrain Pigs genes ,but lead to worst meat quality. The production performance of （D× LY）as a classical hybrid combination was stable.