饲喂沼渣源饲料对猪胴体品质、肉质性状及营养成分的影响  

Effect of biogas residue feed on swine carcass and meat quality and nutrition content

作　　者：雷赵民[1] 窦学诚[2] 张浩[1] 李强[1] 

机构地区：[1]甘肃农业大学动物科学技术学院,兰州730070 [2]甘肃农业大学农学院,兰州730070

出　　处：《中国生态农业学报》2009年第4期752-755,共4页Chinese Journal of Eco-Agriculture

基　　金：国家科技基础条件平台项目(2004DEA70810)资助

摘　　要：以杜长大三元杂交猪为对象,研究了饲喂沼渣源配合饲料对猪胴体品质、肉质性状及营养成分的影响。结果表明,饲料添加不同量的沼渣对猪屠宰率和胴体长无显著影响(P>0.05),但显著降低了瘦肉率、后腿比例和眼肌面积(P<0.05),显著提高了背膘厚。饲料添加沼渣显著降低了肌肉颜色和熟肉率,显著提高了滴水损失和剪切力值,且添加量越多效果越明显;同时,添加沼渣对肌肉失水率、pH无显著影响,但大理石纹评分对照组和沼渣组差异显著。对猪肉营养成分测定结果表明,添加沼渣显著降低猪肉粗蛋白质、粗脂肪和水分含量,而对粗灰分含量无显著影响。因此,猪日粮中添加沼渣降低了胴体品质、肉质性状以及营养价值,如果将其应用到生产中,需要解决胴体品质、肉质和营养价值下降的问题。Duroc-landrace-yorkshire swine was used to analyze the effect of biogas residue feed on carcass and meat quality and nutrition content. The results show insignificant effect of biogas residue feed at different doses on dressed weight rate and carcass length. However, biogas residue feed significantly decreases lean meat rate, ham rate, and lion-eye area, while significantly increasing backfat thickness. Biogas residue diet decreases meat color, meat cooking rate, while significantly increases drip loss rate and shear force value, the effects are enhanced by increasing dosage of biogas feed. The effect of biogas residue diet on muscle dehydrating rate, pH is insignificant, while on marbling score is significant. The study on swine nutrition shows that biogas feed reduces crude protein, fat and water content, but has little effect on crude ash content. Adding biogas residue to swine diet decreases carcass and meat quality, and nutrition content, a key issue to be considered before using biogas residue as an ingredient of swine diet.

关 键 词：沼渣 猪饲料 胴体品质 肉质性状 营养成分 杜长大三元杂交猪 

分 类 号：S816.35[农业科学—饲料科学]