摘要
为探究西藏昌都市不同放牧地区黑山羊肉用性能的差异,本研究选取边坝和芒康地区的黑山羊10头,测定其屠宰性能、矿物质元素、维生素、氨基酸及脂肪酸组成,并采用T检验分析进行比较。结果表明:芒康黑山羊羊肉屠宰率显著高于边坝黑山羊14.04%(P<0.05),而宰前活重、胴体重无显著差异(P>0.05)。芒康黑山羊羊肉脂肪含量显著低于边坝黑山羊43.82%(P<0.05),而挥发性盐基氮显著高于边坝黑山羊2.03%(P<0.05),水分、蛋白质、pH和总糖无显著差异(P>0.05);芒康黑山羊羊肉矿物质含量中硒含量显著高于边坝黑山羊(P<0.05),而钙、磷、镁、钾、铁和锌含量无显著差异(P>0.05);两组在维生素和氨基酸含量方面无显著差异(P>0.05);在多不饱和脂肪酸中芒康黑山羊羊肉中亚油酸-顺,顺-9,12-十八碳二烯酸(C18∶2n6c)的含量与边坝黑山羊羊肉相比显著提高38.10%(P<0.05),多不饱和脂肪酸/饱和脂肪酸(P/S)比值芒康黑山羊羊肉较边坝黑山羊有升高的趋势(P=0.050),而饱和脂肪酸和单不饱和脂肪酸无显著差异(P>0.05);重金属元素铅、镉、总砷和铬等含量均未检测出。综上,昌都地区黑山羊肉品质存在显著地域性差异,芒康黑山羊肉具有低脂肪、高硒和高多不饱和脂肪酸的营养价值和健康潜力。
In order to investigate the differences in meat performance of black goats from different grazing areas in Chamdo city,Xizang,10 black goats from Bianba and Mangkang areas were selected in this study,and the meat nutrients,mineral elements,vitamins,amino acids and fatty acid compositions were deter-mined and compared between groups using T-test analysis.The results showed that the slaughter rate of Mangkang black goat mutton was significantly higher than that of Bian-ba black goat by 14.04%(P<0.05),while there was no significant difference in the pre-slaughter body weight and carcass weight(P>0.05).The fat content of Mangkang black goat mutton was significantly lower than that of Bianba black goat by 43.82%(P<0.05),while the volatile saline nitrogen was significantly higher than that of Bianba black goat by 2.03%(P<0.05).There were no significant differences in moisture,protein,pH,and total sugar(P>0.05);selenium was significantly higher than that of Bianba black goat in the mineral content of Mangkang black goat mutton(P<0.05),while the calcium,phosphorus,magnesium,potassium,iron,and zinc contents were significantly higher than that of Bian-ba black goat(P<0.05).potassium,iron and zinc contents were not significantly different(P>0.05);there was no sig-nificant difference in vitamin and amino acid contents be-tween the two groups(P>0.05);in polyunsaturated fatty acids the content of linoleic acid-cis,cis-9,12-octadecadienoic acid(C18∶2n6c)in the mutton of Mangkang Black Moun-tain goats was significantly higher than that of Bianba Black Mountain goat mutton by 38.10%(P<0.05),and the con-tent of polyunsaturated fatty acids/saturated fatty acids(P<0.05)was significantly higher in Mangkang Black Mountain goat mutton than in Bianba Black Mountain goats.Unsatu-rated fatty acid/saturated fatty acid(P/S)ratio of Mangkang black goat mutton tended to be higher compared to Bianba black goat(P=0.050),whereas saturated fatty acid and mo-nounsaturated fatty acid showed no significant difference(P>0.05);the content of heavy metal elements,such as lead,cadmium,total arsenic,and chromium,were not detected.In conclusion,there were significant geographical differences in the quality of black goat meat in the Chamdo region,and Mangkang black goat meat has the nutritional value and health potential of low fat,high selenium and high polyunsat-urated fatty acids.
作者
仁青措姆
阿旺措吉
洛桑扎西
尼玛央宗
斯郎江措
王金辉
翰海玉
达瓦
德吉
Renqingcuomu;Awangcuoji;Luosangzhaxi;Nimayangzong;Silangjiangcuo;WANG Jinhui;HAN Haiyu;DA Wa;DE Ji(Institute of Livestock and Veterinary Research(ILVR)Xizang Academy of Agriculture and Animal Husbandry Sciences,Xizang 850009,China;Agricultural and Animal Husbandry Science and Technology Extension and Service Center of Bianba County,Changdu,Xizang 854000,China;General Livestock Station,Changdu,Xizang 854000,China)
出处
《畜牧兽医杂志》
2025年第4期15-22,29,共9页
Journal of Animal Science and Veterinary Medicine
基金
昌都边坝县黑山羊良种繁育提升技术集成与示范项目(23001)。
关键词
黑山羊
肉品质
氨基酸
脂肪酸
昌都
black goat
meat quality
amino acids
fatty acids
Changdu
作者简介
第一作者:仁青措姆(1996-),女,研究实习员,主要从事西藏绒山羊育种与健康养殖等研究。E-mail:rqc1121492916@163.com;通信作者:德吉,E-mail:495838467@qq.com。
