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霉菌污染越来越成为饲料工业和畜牧养殖业中的隐形杀手。论文主要论述了饲料霉菌复合污染给饲料工业和养殖业带来的危害及如何预防饲料霉变,减少霉菌复合污染给畜牧业带来的经济损失。 相似文献
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霉菌对饲料的污染是十分常见的,可以说所有饲料都可以作为霉菌生存的环境。而由饲料传播的霉菌毒素就有可能在这些饲料中存在。饲料被霉菌污染后,主要引起两方面的危害:一是由霉菌引起饲料的变质,一是因霉菌产生毒素而引起的动物中毒。 相似文献
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防止饲料中霉菌和霉菌毒素污染 总被引:1,自引:0,他引:1
在世界上每年大约25%谷物遭受各种霉菌污染,污染程度不同.造成的损失在不同地区差异较大。美国是全世界第一大饲料生产国.每年因霉菌和霉菌毒素而造成的损失达14亿美元.平均每吨饲料损失达11.6美元。我国是世界上第二大饲料生产国.2003年全国工业饲料的总产量已达到8760万吨,因霉菌毒素污染而造成经济、社会、生态的损失也很大。其原因是大部分人普遍对霉菌的生长条件不熟悉.对饲料霍峦的情况不了解, 相似文献
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饲料中的霉菌毒素主要来自原料、加工及储存过程中霉菌的繁殖和污染。由于霉菌生长繁殖和霉菌毒素产生的条件无法控制,造成霉菌毒素污染食品及饲料的问题已成为现代农业生产中的难题,同时给畜牧业生产带来了严重的经济损失。介绍饲料中常见的霉菌毒素的来源、饲料被霉菌毒素污染的现状以及对动物的危害和防控措施,为实际生产提供参考。 相似文献
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<正> 一、霉菌对饲料的污染及危害根据霉菌对词料的污染途径,分为内源性污染与外源性污染。 1.内源性污染(收获前污染)来自土壤或存在于种子内部的霉菌抱子在植物生长过程中进入植物体内,或在籽实形成过程中进入籽实内,使饲料在收获前就含有霉菌抱子。 2.外源性污染(收获后污染)在饲料的加工、运输、储存、饲喂过程中,空气、地面、加工机械、运输工具、储存场所、饲喂器具中的霉菌孢子居于谷物或颗粒饲料而导致污染。目前已发现可产生毒素霉菌100多种,导致人和动物中毒的霉菌主要有镰刀菌属、曲霉菌属和青霉菌属。主要霉菌毒素的危害见下表。 相似文献
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<正>1微生物污染1.1污染饲料的微生物种类及危害1.1.1细菌污染:污染饲料的细菌有沙门氏菌、肉毒梭菌、葡萄球菌等。1.1.2霉菌污染霉菌是饲料生物污染源之一,目前已知污染饲 相似文献
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张红禹 《国外畜牧学(猪与禽)》2019,(7):68-68
霉菌毒素是真菌产生的具有毒性的代谢产物,粮食作物受霉菌毒素污染带来的经济损失十分严重。部分粮食会作为饲料原料使用,这就导致饲料不可避免地被霉菌毒素污染,进而引起饲料资源的浪费或者动物健康的受损。本文就饲料中霉菌毒素的污染情况及防控措施进行了综述,以期为广大同行提供参考。 相似文献
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本文介绍了我国奶牛饲料业基本情况,提出了主要存在的饲料生产与奶牛饲养模式不相适应的问题,着重提出了“饲料配合”建设的意义,内容及可操作性,提出了当前发展我国奶牛业的策略。 相似文献
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本文论述了青海省的饲料工业现状,饲料供需现状及饲料开发应用前景。指出,首先要注重浓缩料和预混料的研制与生产,其次要合理利用优势资源如菜籽饼粕等,此外还要加强和改善饲料工业行业管理,建立健全质量保证体系;深化体制改革;加大饲料工业科研投入;建立区域性的饲料综合市场等。 相似文献
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在分析青海省畜牧业,特别是养猪业生产的基础上,结合全国预混料生产情况,指出当前发展青海省预混料生产现有技术和市场基础,应引起有关部门和生产厂家重视。 相似文献
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《The Journal of Applied Poultry Research》2006,15(4):564-573
Mash feed preparation is the widely practiced method of preparing and presenting feed to laying hens in the egg industry due to its economics, flexibility, and simplicity. However, this form of feed presents a wide range of particle sizes that are likely to segregate (i.e., large particles may separate from the small particles during feed delivery through either auger or drag-chain delivery systems). Two predominant segregation patterns were observed, including sieving and side-to-side segregation, during feed delivery. These segregation patterns promoted ingredient selection activities by the hens (mainly larger particles) that modified the nutrients in the feed and influenced the hens’ ability to meet their daily nutrient requirements. This observation was quantified through a systematic study of the relationship of feed nutrients, feed particle size distribution, and hen performance, including BW and egg quality analysis. To minimize the feed segregation effect on hen performance and egg quality, 3 recommendations are proposed to improve feed fabrication and the feed delivery system. 相似文献
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Jie Liu Ming Qi Yakuan Huang Jiao Guo Jiacai Zhang Chong Li Niya Zhang Lvhui Sun Desheng Qi 《Animal Science Journal》2017,88(8):1075-1081
This study was performed to determine the effects of oils on feed mildew and feed quality. Under different moisture content conditions (10%, 13% and 16%), the basal feeds were supplemented with 4%, 6%, 8%, 10% and 12% soybean oil. In addition, at different moisture content levels (10%, 13% and 16%), the basal feed was supplemented with 12% of various types of oil (soybean, peanut, corn and fish). Subsequently, a mixed mold spore suspension was added. The feed samples were incubated at 28°C, and the total mold, water activity (Aw), moisture, acid value, crude protein (CP), crude lipid (CL), crude ash (CA) and nitrogen‐free extract (NFE) levels were determined at 15, 30, 45 and 60 days. The results showed no significant variations in the feed moisture, CP, CL, CA and NEF contents. However, the acid value gradually increased in the feed samples with an extended incubation time and increasing initial moisture. The feed moisture content was a critical factor controlling feed mildew, and high levels of oil supplementation caused an elevated Aw. Additionally, peanut oil promoted mold growth in feed. These results provide a reference for the production and scientific management of formulated feed. 相似文献
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选用沈阳市奶牛服务中心研制的“增肉灵浓缩料”(又称“雪花牌浓缩料”),进行优质牛肉的育肥生产试验,结果表明,使用该料的肉牛强度育肥,不仅能生产出可被用户接受的优质牛肉,而且具有饲料报酬较高,肉牛消化良好,方便用户的特点。 相似文献