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一、前言配合饲料是根据不同畜禽的不同生长阶段的营养需要,充分利用各种饲料资源,把不同来源的饲料按一定比例与各种饲料补充物和饲料添加剂充分混合而成的商品饲料。它的特点是,配方科学、营养全面、饲养效率高,直接或稍加调制就可直接饲喂,节省劳力,便于运输贮存,有利于畜牧业的集约化、专业化、工厂化。配合饲料不仅能促进 相似文献
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本文简要叙述了饲料及其添加剂工业的发展概况,较详细地介绍了饲料和饲料添加剂的种类、作用及其制造工艺。饲料是发展饲养业的物质基础。目前全世界食物短缺现象日益严重,对改善食物结构的要求不断提高,对饲养业的发展愈加重视。由于饲养业的集约化与专业化程度的不断提高,大大加快了饲料及饲料添加剂工业的发展。部分国家或地区的配合饲料产量如表1所示。 相似文献
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随着我国人民生活水平的提高,需要的各种肉食剧增,因此,饲料工业迅速兴起,但还远不能满足实际需要。根据中央有关部门的通知精神,我国将要大力发展饲料及饲料添加剂的生产。广州化工系统已开始发展饲料及饲料添加剂,如华德化工厂近两年来 相似文献
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《分离科学与技术》2012,47(1):102-109
Abstract The use of two-enthalpy feed, which involves splitting the feed, condensing part of it, and sending both the liquid and vapor streams to the distillation column, is explored for columns that have a vapor feed and require refrigeration in the column condenser. The use of two-enthalpy feed can reduce both capital and operating costs compared to condensing all the feed. Compared to use of partial cooling and use of a two-phase feed, two-enthalpy feed reduces the condenser heat duty, but the feed cooling occurs at a lower temperature. 相似文献
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饲料添加剂缩二脲的制备 总被引:3,自引:0,他引:3
介绍了缩二脲的用途和产品质量标准,研究了尿素熔融法制备缩二脲的工艺参数,认为鼓入空气的尿素熔融法生产饲料添加剂缩二脲在工艺上是可行的。 相似文献
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窑头窑尾密封装置是熟料烧成系统的关键设备之一,其密封效果直接影响到烧成系统的热耗和能耗指标,为此中材装备集团有限公司对国内外知名公司所生产的各种型式窑头窑尾密封装置的使用现状进行了调查研究,汲取成功经验,并在此基础上开发出两种新型窑头窑尾密封装置,本文将对其作简明介绍。 相似文献
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Mirjana Budin
. R. Vrbaki J. Turkulo Etelka Dimi 《European Journal of Lipid Science and Technology》1995,97(9):355-358
Antioxidant activity of ethanolic extracts of the dried unripe fruit of osage orange (Maclura aurantiaca Nutt.) was studied using raw sunflower oil as substrate. Antioxidant activity of both the ethanolic extract and powder of the same plant was also assessed on the basis of measurements on the Rancimat apparatus with lard as the substrate and by determination of the peroxide number. It was established that the antioxidant activity in the case of powder increased with a decrease in the particle size. The antioxidative power of the powder of the osage orange fruit was compared with that of powders of following plants: Asclepias syriaca L., Astragalus onobrychis L., Thymus marschallianus Willd., and Oenothera biennis L., using the Rancimat apparatus. Citric acid exhibited a strong synergistic effect in the combination with both the ethanolic extract and powder obtained from the fruit of Maclura aurantiaca Nutt. 相似文献
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