核桃饼饲用营养成分分析核桃饼常规成分组成:核桃饼的干物质、粗脂肪和粗纤维含量均高于其他同类饲料,与大豆饼相比分别高出5.6%、143.4%和334.8%。核桃饼中粗脂肪较高与核桃油的生产工艺有关;粗蛋白和无氮浸出物含量相对偏低,非植酸磷含量明显高于其他同类饲料,利于单胃动物对磷的吸收利用。经测定核桃饼的总能值为,23.13MJ/kg。核桃饼维生素及微量元素含量核桃饼中维生素E的含量仅次于棉籽饼,均高于其他饼粕类饲料;维生素B1和维生素B6的含量较大豆饼高11605.9%和475%,远根据中华人民共和国国家标准颁布的方法测定核桃饼的饲用营养成分。结果表明:核桃饼的粗脂肪、粗纤维和非植酸磷含量均明显高于大豆饼等同类饲料,维生素B1、维生素B6、锰及精氨酸的含量较大豆饼高11605.9%、475%、243.7%和131.2%,其他营养成分含量与同类饲料相当。经对比分析,核桃饼可部分替代大豆饼(粕)等饲料应用于畜牧养殖业。饲料干物质粗蛋白脂肪粗纤维无氮浸出物粗灰分中性洗涤纤维酸性洗涤纤维钙总磷非植酸磷核桃饼93.9753.7416.124.8719.264.9832.1023.100.300.920.44大豆饼89.0041.805.804.8030.705.9018.1015.500.310.500.25大豆粕89.0044.201.905.9028.306.1013.609.600.330.620.21棉籽饼88.0036.307.4012.5026.105.7032.1022.900.210.830.28菜籽饼88.0035.707.4011.4026.307.2033.3026.000.590.960.33花生仁饼88.0044.707.205.9025.105.1014.008.700.250.530.31向日葵饼88.0029.002.9020.4031.004.7041.4029.600.240.870.13亚麻仁饼88.0032.207.807.8034.006.2029.7027.100.390.880.38芝麻饼92.0039.2010.307.2024.9010.4018.0013.202.241.190.22高于同类饲料;维生素B2含量同向日葵仁饼含量相当,均高于其他同类饲料。另外,核桃饼维生素A和维生素D3含量分别为,2850IU/kg和13.9万IU/kg,维生素含量非常丰富。从表3可见:核桃饼中钾含量偏低,锌含量略高于同类饲料,铁、铜和硒含量介于各饼粕饲料之间,而锰含量较大豆饼高243.7%,明显高于同类饲料水平。核桃饼中碘含量为10.66mg/kg。因此,用核桃饼替代大豆饼(粕)类饲料,可降低饲养成本,同时还可适当降低预混料中相应维生素和微量元素的用量。表3核桃饼微量元素含量及与同类饲料对比项目核桃饼大豆饼大豆粕棉籽饼菜籽饼花生仁饼向日葵仁饼亚麻仁饼芝饼钾(%)0.941.771.721.201.341.141.171.251.39铁(%)3501871852666873474242041780铜(%)30.019.824.011.67.223.745.627.050.4锰(mg/kg)11032.028.017.878.136.741.540.332.0锌(mg/kg)6343.446.444.959.252.562.136.02.4硒(mg/kg)0.090.040.060.110.290.060.090.180.21碘(mg/kg)10.66核桃饼氨基酸水平分析核桃饼中氨基酸含量丰富且均衡。核桃饼维生素含量及与同类饲料对比项目核桃饼大豆饼大豆粕棉籽饼花生仁饼向日葵仁饼亚麻仁饼芝麻饼维生素E10.36.63.116.03.00.97.70.3维生素B1199.01.74.66.47.12.62.8维生素B217.24.43.05.15.218.04.13.6维生素B657.5106.15.310.06.112.5维生素D313.9注同表1核桃饼氨基酸含量及与同类饲料对比%氨基酸核桃饼大豆饼大豆粕棉籽饼菜籽饼花生仁饼向日葵仁饼亚麻仁饼芝麻饼精氨酸5.852.533.383.941.824.602.442.352.38组氨酸1.061.101.170.900.830.830.620.510.81异亮氨酸1.501.571.991.161.241.181.191.151.42亮氨酸2.902.753.352.072.262.361.761.622.52赖氨酸1.262.432.681.401.331.320.960.730.82苯丙氨酸1.841.792.211.881.351.811.211.321.68酪氨酸0.921.531.470.950.921.310.770.501.02苏氨酸1.171.441.711.141.401.050.981.001.29缬氨酸1.851.702.091.511.621.281.351.441.84天冬氨酸3.84丝氨酸2.18谷氨酸7.46甘氨酸1.93丙氨酸1.71脯氨酸1.00t