饲喂香蕉茎叶和玉米秸秆青贮料对杜湖羊肉品质和营养成分的影响

发布时间：2019-02-19 10:27

【摘要】：以杜湖杂交羊为研究对象,比较分析饲喂香蕉茎叶和玉米秸秆青贮饲料之后背最长肌的肉品质、氨基酸、脂肪酸含量差异。选取7月龄杜湖杂交羊16只,随机分为2组(每组8只):对照组饲喂玉米秸秆青贮饲料,试验组饲喂香蕉茎叶青贮饲料,其他饲养模式及喂料两组完全相同,预饲期7d,试验期100d。结果显示:试验组羊肉的pH、系水力、熟肉率和肉的亮度及黄度均高于对照组;两组羊肉中的干物质、粗蛋白、粗脂肪和粗灰分的含量无显著差异(P0.05);试验组羊肉的氨基酸总量、必需氨基酸、鲜味氨基酸及必需氨基酸和鲜味氨基酸分别占氨基酸总量比率均高于对照组,但是差异不显著(P0.05);试验组羊肉的脂肪酸含量显著低于对照组(P0.05),饱和脂肪酸和不饱和脂肪酸含量均低于对照组,但差异不显著(P0.05)。结果表明,饲喂香蕉茎叶青贮饲料对羊肉肉品质、氨基酸、脂肪酸等无明显影响,可以替代玉米秸秆青贮饲料。
[Abstract]:The meat quality, amino acid and fatty acid content of longissimus dorsi muscle fed banana stalk and corn straw silage were compared and analyzed. Sixteen 7-month-old Duhu crossbred sheep were randomly divided into two groups: the control group was fed with corn straw silage, the experimental group was fed with banana stalk and leaf silage, the other feeding modes and feeding groups were the same, and the prefeeding period was 7 days. The trial period was 100 days. The results showed that the content of dry matter, crude protein, crude fat and crude ash in the mutton of the test group was higher than that of the control group (P0.05), and the content of dry matter, crude protein, crude fat and crude ash in the two groups was higher than that in the control group (P0.05). The total amino acids, essential amino acids, fresh amino acids, essential amino acids and fresh amino acids in the test group were higher than those in the control group, but the difference was not significant (P0.05). The fatty acid content of mutton in the test group was significantly lower than that in the control group (P0.05), but the content of saturated fatty acid and unsaturated fatty acid was lower than that of the control group, but the difference was not significant (P0.05). The results showed that there was no obvious effect on meat quality, amino acid, fatty acid and so on by feeding banana stalk and leaf silage, which could replace corn stalk silage.
【作者单位】：广西壮族自治区农业科学院农产品加工研究所;广西果蔬贮藏与加工新技术重点实验室;
【基金】：广西科学研究与技术开发计划项目(桂科合1347004-18) 广西农业科学院科技发展基金项目(桂农科2015JZ138);广西农业科学院科技成果转化项目(2017NZ13) 南宁市西乡塘区科学研究与技术开发计划项目(2015309) 国家“万人计划”青年拔尖人才专项(组厅字[2015]48号)
【分类号】：S826.5

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