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流动注射法测定青贮饲料中的氨态氮 被引量:5
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作者 范志影 陈金辉 +1 位作者 肖靖泽 赵萍 《中国农业科技导报》 CAS CSCD 2008年第S2期98-100,共3页
采用流动注射分析法测定青贮饲料中的氨态氮。方法的检出限为1.99μg/L;线性范围为10~5 000μg/L,相关系数r≥0.999;其相对标准偏差为1.03%;实际样品的加标回收率为96%~108%;样品测定频率为30样/h。本方法操作简便、灵敏度较高、线性范... 采用流动注射分析法测定青贮饲料中的氨态氮。方法的检出限为1.99μg/L;线性范围为10~5 000μg/L,相关系数r≥0.999;其相对标准偏差为1.03%;实际样品的加标回收率为96%~108%;样品测定频率为30样/h。本方法操作简便、灵敏度较高、线性范围宽、精密度高,对于大量饲料样品的测定结果令人满意。 展开更多
关键词 流动注射 氨态氮 青贮饮料
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青贮饲料二次发酵的原因与预防 被引量:1
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作者 李济宸 李群 《科学种养》 2008年第7期42-42,共1页
青贮饮料适口性好、营养丰富、消化率高,是饲喂牛羊的好饲料。制作好的青贮饮料若与大量空气接触,在微生物的作用下,就会继续进行好氧发酵并产生热量,使青贮饲料腐败,这就是青贮饲料的二次发酵,又称好气性腐败。
关键词 青贮饮料 饲料 二次发酵 好气性腐败
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红薯藤薄膜袋鲜贮技术
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作者 代道强 《农村经济与技术》 1996年第8期13-13,共1页
运用饲料青贮原理,将红薯藤切碎后贮存在塑料薄膜袋内(厌氧环境),通过发酵产生大量乳酸,抑制有害微生物的滋生,从而达到较长时间保存的目的。
关键词 红薯藤 薄膜袋鲜技术 饮料原理 饲料
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Effect of Sugar Beet Top Ensiled with Sugar Cane Bagass in Diet of Lactating Buffaloes
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作者 Ishagh Kord-Nejad Hassan Fazaeli +1 位作者 Kayvan Karkoodi Ahmad Khayyat 《Journal of Agricultural Science and Technology(A)》 2012年第2期278-283,共6页
Sugar beet tops including leaves and crown harvested and chopped into 3-6 cm, mixed with sugar cane pulp and sugar cane molasses (about 5% of the total mass) to provide a mixture contained 30-35 percent dry mater. A... Sugar beet tops including leaves and crown harvested and chopped into 3-6 cm, mixed with sugar cane pulp and sugar cane molasses (about 5% of the total mass) to provide a mixture contained 30-35 percent dry mater. After two months of ensiling, the silage was evaluated and used in the ration of lactating buffaloes. A Latin square experiment in a changeover design, with three periods of time, each with 20 days for adaptation and 10 days for recording data, was conducted in which 15 multiparous lactating buffloes were used in three similar groups, each with five animals. The prepared silage was included in the diet of lactating buffaloes where a control diet (A) was compared with treatment diets contained 25% (B) and 50% (C) silage (DM basis) respectively. Milk yield was recorded, sampled and analysed for fat, protein, solid not-fat and total solids-content. The maximum daily rough milk yield per animal was obtained on diet C while minimum on diet A (P 〈 0.05). Similar trends were observed for 4% fat corrected milk, and 3.5% fat corrected milk that were significantly different between the treatments (P 〈 0.05). The percentage of crude fat and daily fat yield per animal were significantly (P 〈 0.05) higher in treatment C comparing to A and B. An increasingly trend of milk and fat yield was observed when the animals received silage contained diets but statistically it was significant only for the diets contained 50% silage. In addition, the fat percentage was significantly (P 〈 0.05) increased when the buffaloes received diet containing 50% silage. The highest (P 〈 0.05) amount of protein and total solid yield obtained, when the animals received high (50%) silage diet. 展开更多
关键词 Sugar beet top SILAGE milking buffaloes.
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