杜洛克与鲁烟白猪杂交商品猪肥育性能、胴体品质及肉质研究

研究测定了鲁烟白猪与鲁育杜洛克杂交商品猪的生长肥育性能、胴体性能及肉品质。结果表明:鲁育杜洛克×鲁烟白猪组合生长性能较高,与鲁烟白猪×鲁烟白猪相比,平均日增重提高6.37%(P>0.05),料重比降低7.98%(P>0.05);鲁育杜洛克×鲁烟白猪组合胴体性能显著提高,眼肌面积和瘦肉率分别提高47.89%(P<0.01)和10.69%(P<0.05);平均背膘厚和脂肪率分别降低27.70%(P<0.01)和22.20%(P<0.05),肌肉干物质含量提高5.25%(P<0.05);背最长肌17种氨基酸含量无显著差异;背最长肌脂肪酸含量差异显著,棕榈酸和硬脂酸含量分别提高54.63%(P<0.01)和54.24%(P<0.05);油酸和亚油酸以鲁烟白猪×鲁烟白猪较高,分别比鲁育杜洛克×鲁烟白猪提高42.36%(P<0.01)和39.48%。

Studies on Growth Performance, Carcass Quality and Meat Quality of Hybrid Commercial Pig Combination (Duroc × Luyan White Pig)

The growth performance,carcass quality and meat quality of hybrid commercial pig combination(Duroc × Luyan white pig) were studied.The results showed that Duroc × Luyan white pig had better growth performance,its average daily gain increased by 6.37%(P>0.05),and the ratio of feed weight to body weight decreased by 7.98%(P>0.05) as compared with Luyan white pig × Luyan white pig.The carcass quality of Duroc × Luyan white pig was significantly better than that of Luyan white pig × Luyan white pig,and the former combination had 47.89% higher(P<0.01) eye-muscle area,10.69% higher(P<0.05) lean meat percent,27.70% lower(P<0.01) average fatback thickness and 22.20% lower(P<0.05) fat percent.In comparison with Luyan white pig × Luyan white pig,the dry matter content in muscle of Duroc × Luyan white pig was increased by 5.25%(P<0.05),and the content of palmitic acid and stearic acid was increased by 54.63%(P<0.01) and 54.24%(P<0.05) respectively.There was no significant difference in the content of 17 kinds of amino acids in the dorsal longest muscle between two hybrid pig combinations,but significant difference in fatty acid content was found.The content of oleic acid and linoleic acid of Luyan white pig × Luyan white pig was 42.36%(P<0.01) and 39.48% higher than that of Duroc × Luyan white pig,respectively.