【摘要】 试验旨在研究以牛膝、杜仲和玄参三种药用多糖进行配伍对生长育肥猪生长性能、屠宰性能和肉品质的影响,探讨复合多糖改善育肥猪生长性能及肉品质的机理。试验选用160头体重接近的生长育肥猪,采用单因素完全随机试验设计,分为5个处理:1)基础日粮组,2)抗生素组,3)0.05%复合多糖组,4)0.10%复合多糖组,5)0.15%复合多糖组。每组4个重复,每个重复8头猪,试验期共90 d。结果显示:1)与基础日粮组相比,0.10%复合多糖组和0.15%复合多糖组能显著提高猪日增重和降低料重比(P<0.05)。2)与基础日粮组相比,0.10%复合多糖组和抗生素组能显著提高猪屠宰率(P<0.05),复合多糖各组(0.05%,0.10%和0.15%)和抗生素组能显著降低猪的背膘厚并提高眼肌面积和瘦肉率(P<0.05)。3)与基础日粮组相比,复合多糖各组(0.05%,0.10%和0.15%)能显著提高猪背最长肌大理石纹评分并显著降低猪背最长肌的滴水损失(P<0.05)。与基础日粮组相比,抗生素组显著提高猪背最长肌的失水率和滴水损失(P<0.05)。结果表明复合多糖能够显著提高肌肉肉色评分、大理石纹评分、熟肉率,提高瘦肉率和肉品质。更多还原

【Abstract】 In order to study the effects of the Achyranthes bidentata compound polysaccharides on the growth performance and carcass quality of finishing pigs, 160 pigs with similar weight were randomly divided into 5 groups :1) basal diet group, 2) antibiotic group, 3) 0.05% compound polysaccharide group, 4) 0.10% compound polysaccharide group, and 5) 0.15% compound polysaccharide group. Each group was repeated 4 repetitions, each repetition had 8 pigs. The experiment lasted for 90 days. The results showed that: 1) Compared with the basal diet group, 0.10% compound polysaccharide group and 0.15% compound polysaccharide group significantly increased the daily gain and decreased the feed conversion ratio of pigs(P < 0.05).2) Compared with basal diet group, the slaughter rate of pigs in 0.10% compound polysaccharide group and antibiotics group was significantly increased(P < 0.05), the thickness of back fat of pigs in compound polysaccharide groups(0.05%, 0.10% and 0.15%) and antibiotics groups were significantly decreased, and the eye muscle area and lean meat percentage of pigs were increased(P < 0.05).3) Compared with the basal diet group, compound polysaccharide groups(0.05%,0.1% and 0.15%) significantly increased the marble score of meat and significantly decreased the drip loss of meat(P < 0.05). Compared with basal diet group, antibiotic group significantly increased the water loss rate and drip loss of meat(P < 0.05). In summary,the compound polysaccharides could significantly improve the growth performance and carcass quality of finishing pigs.更多还原