共查询到18条相似文献，搜索用时 218 毫秒
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[目的]测定皇竹草和人工配合饲料的营养成分含量,探讨用其饲喂2月龄草鱼的增重效果。[方法]根据不同的成分测定要求,测定皇竹草和人工配合饲料的主要营养成分含量。用皇竹草和人工配合饲料饲喂2月龄草鱼,研究其对2月龄草鱼的增重效果。[结果]冬季鲜样水分含量为76．04％,粗蛋白14．61％,粗脂肪2．34％,粗灰分10．43％,粗纤维19．加％,碳水化合物53．42％;人工配合饲料水分含量为6．8％,粗蛋白37．66％,粗脂肪3．22％,粗灰分9．55％,粗纤维3．65％,碳水化合物45．92％。鲜皇竹草粗纤维的含量明显高于普通人工饲料,而粗蛋白的含量则相反,其他成分差异不明显。利用二者对2月龄草鱼进行投喂,结果发现全程投喂皇竹草的草鱼组的体重及其他可量生长性状都明显低于人工配合饲料组。{结论12月龄草鱼以皇竹草作为主要营养物质的增重效果不如人工配合饲料。 相似文献
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对四川西北部高寒草甸草地的5种潜在生态草种不同生育期的营养成分进行了分析,结果表明,各草种不同生育期的粗水分、干物质、粗蛋白、粗脂肪、粗纤维、粗灰分等含量不同.其中赖草的干物质、蛋白质、粗脂肪、无氮浸出物和粗灰分含量显著高于川草Ⅰ号、川草Ⅱ号、垂穗鹅冠草和硬杆仲冰草等4种草.5种草不同生育期营养成分的分析结果表明,各草种分蘖期和孕穗期的粗水分、粗灰分、蛋白质、粗脂肪以及钙、磷含量明显高于结实期,而粗纤维、干物质和除赖草外的无氮浸出物含量则相反.表明在利用这些草种的过程中应抓好分蘖期的管理工作,以达到充分利用其饲用价值的目的. 相似文献
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[目的]了解榕树果的营养成分,为榕树果野生资源的综合开发和利用提供科学依据。[方法]对野生榕树果的总酸度、有效酸度、粗脂肪、果胶、粗纤维、游离氨基酸、蛋白质和维生素C进行了定量分析。[结果]榕树果中粗纤维、果胶、蛋白质、总糖和粗脂肪含量较高,分别为4.611%、2.644%、2.224%、1.676%和1.292%,维生素C的含量为0.057 15 mg/g。与6种常见蔬果的营养成分含量相比,榕树果的蛋白质、脂肪和粗纤维含量相对较高,而总糖和维生素C含量相对较低。[结论]榕树果的蛋白质、脂肪和粗纤维含量具有较大开发价值。 相似文献
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昭苏马场季节草地牧草经济类群营养成分初步分析 总被引：1，自引：0，他引：1
[目的]测定昭苏马场春秋草场、夏草场、冬草场牧草不同经济类群营养成分,确定草群的营养价值,为合理配置草地资源提供理论依据.[方法]采用常规分析方法,测定不同利用方式下不同季节牧场牧草的粗灰分、粗纤维、粗脂肪、粗蛋白和无氮浸出物含量.[结果]春秋草地牧草营养成分含量:粗蛋白含量在传统放牧方式下最高;粗脂肪平均含量以围栏内利用方式下牧草经济类群的粗脂肪含量最高;粗灰分含量围栏外最高.夏草地牧草营养成分含量:粗蛋白含量围栏内利用方式偏低;粗脂肪含量围栏外＞围栏内;粗纤维含量围栏内＞围栏外;牧草经济类群中粗纤维含量均低于25;;粗灰分含量围栏外＞围栏内.冬草地牧草营养成分含量:粗蛋白含量豆科草最高;粗脂肪含量以杂类草最高;其粗纤维含量均高于25;,并以杂类草含量最低;粗灰分含量鸭茅最高.[结论]围栏外利用方式下草地营养略好于围栏内利用方式下草地营养;春秋草地和夏草地各利用方式下牧草营养成分的平均含量之间均未表现差异显著(P＜0.05)和差异极显著(P＜0.01)水平. 相似文献
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张小红 《中国农业文摘-农业工程》2021,33(3):61-64
枸杞叶是茄科枸杞属植物枸杞的茎叶,其活性成分和营养成分种类与枸杞子基本相同,具有较高的药用价值和营养价值。本文测定了枸杞叶草粉干物质、粗灰分、粗纤维、粗蛋白、粗脂肪、钙、总磷的含量,并与部分能量饲料、蛋白饲料和苜蓿草粉相应含量进行比较分析,研究其营养价值。结果表明:枸杞叶草粉干物质含量为90.98%,粗蛋白32.32%,粗脂肪1.10%,粗纤维7.8%,无氮浸出物34.76%,粗灰分15%,钙2.16%,总磷0.43%。其干物质含量高于能量饲料、蛋白饲料和苜蓿草粉,粗蛋白高于能量饲料和苜蓿草粉,粗脂肪低于三者,粗纤维含量介于蛋白饲料之间,无氮浸出物与蛋白饲料和苜蓿草粉相当,粗灰分和钙高于三者,总磷介于三者之间。综上所述,枸杞叶草粉具有较高的营养价值。 相似文献
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不同生长时期小花棘豆营养成分与苦马豆素含量比较 总被引：1，自引：1，他引：0
[目的]探讨南疆地区小花棘豆不同生长时期营养成分与苦马豆素(Swainsonine,Sw)含量的动态变化,探讨小花棘豆作为饲草的应用前景.[方法]以6个不同生长时期的小花棘豆作为检测样本,通过饲草概略养分分析方法,对小花棘豆营养成分和矿物元素含量的动态变化进行测定;用气相色谱法测定SW含量,并进行显著性差异比较.[结果]随着小花棘豆的生长,其营养成分有不断增加的趋势.其中粗蛋白、粗脂肪、粗灰分和钙含量在盛花期时达到最大值,干物质和磷含量在结荚期达到最大值,NDF和ADF含量在落叶期达到最大值.小花棘豆SW含量随生长时期的发生明显变化,其中结荚期SW含量均高于其它时期.[结论]小花棘豆营养水平较高,具有潜在的利用价值.对小花棘豆毒素含量和营养价值进行检测可评估其做为饲料的利用前景. 相似文献
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《安徽农业科学》2015,(27)
[目的]通过配制复合酶制剂及对照发酵玉米秸秆试验,了解复合酶制剂不同配比对玉米秸秆发酵的发酵效果。[方法]用不同比例单酶配制复合酶制剂A、B、C组,以百益宝玉米秸秆发酵剂和自然发酵为对照,进行玉米秸秆和秸秆饲料发酵试验。[结果]添加A的饲1组,与CK1组相比纤维素含量降低30.0%,氨基酸态氮和总糖含量分别增加50.0%和37.2%;秸秆复合料发酵前后粗纤维含量降低12.5%,粗蛋白含量和粗脂肪含量分别提高28.7%和12.6%,粗灰分含量增加27.8%,氨基酸总量提高13.2%。[结论]复合酶制剂发酵玉米秸秆饲料明显优于百益宝玉米秸秆发酵剂和自然发酵,发酵后营养成分含量明显增加。 相似文献
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象草常规营养成分及总能含量分析 总被引：4，自引：0，他引：4
对产于昆明东郊的象草春夏秋冬四季样品作常规营养成分和总能含量分析,结果显示：不同季节的样品中各营养成分及总能含量存在一定差异,春季样品粗蛋白11．52％,粗脂肪4．14％,粗纤维27．06％,粗灰分14．23％,无氮浸出物43．05％,总能16719J／g;夏季样品粗蛋白9．76％,粗脂肪3．23％,粗纤维30．07％,粗灰分10．15％,无氮浸出物46．79％。总能16735J／g;秋季样品粗蛋白10．66％,粗脂肪3．08％,粗纤维30．01％,粗灰分10．63％,无氮浸出物45．62％,总能16402J／g;冬季样品粗蛋白7．13％,粗脂肪1．11％,粗纤维40．55％,粗灰分9．04％,无氮浸出物35．44％,总能17238J／g．昆明产象草与重庆产象草相比,各种营养成分含量存在一定差异 相似文献
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野生及人工养殖暗纹东方鲀肌肉营养成分的比较分析(英文) 总被引：5，自引：0，他引：5
[Objective] The aim of this study was to evaluate the nutritive value of Takifugu obscurus and provide the scientific basis for artificially feed research.[Method] The nutrient components and nutritive qualities in the muscle of wild and artificially reared Takifugu obscurus were comparatively analyzed.[Result] The contents of crude protein,crude fat,crude ash,total amino acids,essential amino acids and half essential amino acid in the muscle of wild Takifugu obscurus were all higher than those of the artificially reared.The content of four delicious amino acids in the muscle of wild and artificially reared Takifugu obscurus was 17.59% and 14.44%(percentage of dry weight),respectively.The essential amino acid index(EAAI)was 52 and 40 separately,and the constitutional rate of the essential amino acids met the FAO/WHO standard.Valine was the first limiting amino acid of Takifugu obscurus.[Conclusion] The muscle of wild and artificially reared Takifugu obscurus were all high quality food full of animal protein,while the protein nutritive value of wild Takifugu obscurus was higher than that of the artificially reared. 相似文献
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野生及人工养殖暗纹东方肌肉营养成分的比较分析 总被引：1，自引：0，他引：1
[目的]为评价暗纹东方的营养学价值,并对其人工配合饲料的研制提供科学依据。[方法]对野生及人工养殖暗纹东方的肌肉营养成分和营养品质进行比较分析。[结果]野生暗纹东方的粗蛋白、粗脂肪、粗灰分含量及氨基酸总量、必需氨基酸总量、半必需氨基酸总量均高于养殖暗纹东方。野生与养殖暗纹东方4种鲜味氨基酸的总量分别为17.59%和14.44%(干重百分比),必需氨基酸指数(EAAI)分别为52和40,其构成比例均符合FAO/WHO的标准。暗纹东方的第一限制性氨基酸为缬氨酸。[结论]野生及养殖暗纹东方肌肉均为优质的动物蛋白食品,而野生暗纹东方的蛋白质营养价值要高于养殖暗纹东方。 相似文献
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GU Shu-yu ZHAO Chi School of Life Sciences Nanjing Normal University Nanjing 《（《农业科学与技术》）编辑部》2008,(4)
[Objective] The aim of this study was to evaluate the nutritive value of Takifugu obscurus and provide the scientific basis for artificially feed research.[Method] The nutrient components and nutritive qualities in the muscle of wild and artificially reared Takifugu obscurus were comparatively analyzed.[Result] The contents of crude protein,crude fat,crude ash,total amino acids,essential amino acids and half essential amino acid in the muscle of wild Takifugu obscurus were all higher than those of the artificially reared.The content of four delicious amino acids in the muscle of wild and artificially reared Takifugu obscurus was 17.59% and 14.44%(percentage of dry weight),respectively.The essential amino acid index(EAAI)was 52 and 40 separately,and the constitutional rate of the essential amino acids met the FAO/WHO standard.Valine was the first limiting amino acid of Takifugu obscurus.[Conclusion] The muscle of wild and artificially reared Takifugu obscurus were all high quality food full of animal protein,while the protein nutritive value of wild Takifugu obscurus was higher than that of the artificially reared. 相似文献
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《（《农业科学与技术》）编辑部》2008,(4)
[Objective] The aim of this study was to evaluate the nutritive value of Takifugu obscurus and provide the scientific basis for artificially feed research.[Method] The nutrient components and nutritive qualities in the muscle of wild and artificially reared Takifugu obscurus were comparatively analyzed.[Result] The contents of crude protein,crude fat,crude ash,total amino acids,essential amino acids and half essential amino acid in the muscle of wild Takifugu obscurus were all higher than those of the artificially reared.The content of four delicious amino acids in the muscle of wild and artificially reared Takifugu obscurus was 17.59% and 14.44%(percentage of dry weight),respectively.The essential amino acid index(EAAI)was 52 and 40 separately,and the constitutional rate of the essential amino acids met the FAO/WHO standard.Valine was the first limiting amino acid of Takifugu obscurus.[Conclusion] The muscle of wild and artificially reared Takifugu obscurus were all high quality food full of animal protein,while the protein nutritive value of wild Takifugu obscurus was higher than that of the artificially reared. 相似文献
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早籼稻饲料营养价值的品种间差异研究 总被引：4，自引：0，他引：4
分析了１８个不同早籼稻品种在相同栽培条件下的稻谷与糙米的各种饲料营养成分及这些品种的农艺性状，结果表明，不同早籼稻谷与糙米的各种营养成分存在明显的品种间差异，其中以早籼稻品种稻谷与糙米的粗蛋白含量的品种间差异最大，１８个早籼稻品种糙米 灰分、粗纤维与钙的平均呈比其稻谷的平均含量分别低２．４５％，７．７５％与０．００９％；而１８个早籼和妥品种糙米的干物质、总能、粗蛋白、粗脂肪与磷的平均含量比其稻谷的 相似文献
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《（《农业科学与技术》）编辑部》2014,(12)
[Objective]The energy productivity potential of Saccharum spontaneum L.germplasm resources as energy plants was discussed in this paper.[Method]The energy productivity potential of Saccharum spontaneum L.germplasm resources collected from the wild was assessed from the aspects of cellulose,semicellulose,lignin and crude ash contents and caloric value.[Result]The total content of cellulose and semicellulose ranged from 41.75%to 69.13%,the lignin content ranged from 2.16%to 11.75%,the crude ash content ranged from 4.79%to 9.34%and the caloric value ranged from 16.00 to 17.69 MJ/kg among the 30 Saccharum spontaneum L.germplasms.Compared to other plants,Saccharum spontaneum L.had higher contents of cellulose and semicellulose,a higher caloric value but lower contents of lignin and crude ash.[Conclusion]From the perspective of producing fuel ethanol with lignocellulose,Saccharum spontaneum L.has a great potential for development as an energy plant. 相似文献
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The contents of dry matter, crude fat, crude protein, neutral detergent fiber, acid detergent fiber, crude ash, Ca and P in 43 Saccharum spontaneum L. germplasms during the vegetative period were determined. Among them, the crude protein, crude fat, neutral detergent fiber, acid detergent fiber, P and Ca contents were treated as the judging indicators. The nutritional value evaluation was carried out with the analytic hierarchy process （AHP）. The results showed A49 （Guangxi） had the highest nutritional value. Its dry matter, crude protein, crude fat, crude ash, neutral detergent fiber, acid detergent fiber, Ca and P contents were 32.35%, 7.20%, 4.06%, 8.07%, 75.81%, 50.72%, 0.23% and 0.16% respectively. While A3 （Guangdong） had the lowest nutritional value. Its dry matter, crude protein, crude fat, crude ash, neutral detergent fiber, acid detergent fiber, Ca and P contents were 32.24%, 4.62%, 0.51%, 6.38%, 46.40%, 40.02%, 0.15% and 0.09% respectively. The crude protein content differed significantly among different germplasms. A48 had the highest crude protein content （9.11%）, and A14 had the lowest crude protein content （3.72%）. Based on the evaluation results, the 43 Saccharum spontaneum L. germplasms were divided into 3 groups： high-nutritional value type, moderate-nutri-tional value type and low-nutritional value type. We hoped to provide a theoretical reference for the application of Saccharum spontaneum L. as a forage grass. 相似文献