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由于苏丹红添加于饲料中使用．使禽蛋蛋黄呈现红色．消费者在食用这种红心蛋后会有致癌风险：本文以液相色谱－串联质谱法检测饲料中的苏丹红含量。经检测：苏丹红Ⅰ、苏丹红Ⅱ、苏丹红Ⅲ、苏丹红Ⅳ标准工作曲线相关系数≥0．9999：苏丹红在饲料中的回收率在55％～94％之间．回收率批内变异系数与批间变异系数均≤10％。证明此方法具有很好的可重复性。 相似文献
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《广东畜牧兽医科技》2006,31(6):38-38
通知要求，各省畜牧饲料行政主管部门要组织对辖区内的商品蛋禽饲料和蛋禽养殖场槽料进行苏丹红专项检查。严厉查处在饲料和养殖生产过程中添加违禁药物和苏丹红等化学物质的不法行为。 相似文献
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饲料着色与鸡体着色 总被引：1，自引：0，他引：1
<正> 在家禽配合饲料中,经常使用的着色剂有两大类,即用于改变饲料外观颜色的饲料着色剂和用于在鸡体(皮肤、小腿、喙、脂肪)及蛋黄中沉积的鸡体着色剂。一、饲料着色剂饲料着色剂通常是经重氮反应和偶氮反应的人工合成色素。市场上最常用的饲料着色剂是柠檬黄(tartraline),此外还有苋菜红(amaranth)、胭脂红(poncean)和日落黄(sunsetyellow)等。对饲料外观进行着色的目的主要在两个方面:第一,适应鸡对饲料外观颜色的选择。Lashloy(1916)研究表明,鸡的视网膜能感受395～715毫微米的光波,即能看到红、黄、蓝、绿、紫色。Kennedy(1980)报道,鸡喜欢其刚出壳后所喂的那种饲料的颜色。郑成(1993)报 相似文献
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11月17日,农业部发出通知,要求各省畜牧饲料行政主管部门和饲料质检机构迅速采取行动,进一步加强饲料安全监管工作。通知要求,各省畜牧饲料行政主管部门要组织对辖区内的商品蛋禽饲料和蛋禽养殖场槽料进行苏丹红专项检查。严厉查处在饲料和养殖生产过程中添加违禁药物和苏丹红等化学物质的不法行为。切实加强饲料安全监管工作的组织领导。落实饲料安全属地管理的责任,层层建立责任制,继续做好饲料安全例行监测和瘦肉精等违禁药品专项整治工作。广泛宣传苏丹红、瘦肉精等违禁物质的危害,深入宣传饲料安全监管方面的法规、政策和措施,使广大饲… 相似文献
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由于苏丹红添加在禽用饲料中,会使禽类所产的蛋黄颜色发红,所以一些不法饲料生产企业和产蛋禽类养殖企业违规添加使用。苏丹红是一种化学染色剂,它的化学成分中含有一种叫萘的化合物,该物质具有偶氮结构,由于这种化学结构的性质决定了它具有致癌性,对人体的肝肾器官具有明显的毒性作用。经过试验证明应用高效液相色谱法检测饲料中的苏丹红,操作简单,检测时间短,单一样品检测上机时间约需40min左右,重复性好,离散系数在0.18%～2.73%,回收率好,灵敏度高,最低检出限为0.1mg/kg。苏丹红Ⅰ检测回收率：75.85%～93.68%,离散系数：0.35%～1.88%;苏丹红Ⅱ检测回收率：76.33%～94.68%,离散系数：0.32%～1.96%;苏丹红Ⅲ检测回收率：75.68%～95.06%,离散系数：0.25%～2.73%;苏丹红Ⅳ检测回收率：77.36%～96.66%,离散系数：0.18%～1.53%。 相似文献
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超高效液相色谱法测定饲料中苏丹红Ⅰ、Ⅱ、Ⅲ、Ⅳ的含量 总被引：1，自引：0，他引：1
采用超高效液相色谱仪(UPLC)测定饲料中苏丹红Ⅰ、Ⅱ、Ⅲ、Ⅳ的含量。用乙腈提取饲料中的苏丹红染料,取部分提取液浓缩后直接用Waters超高效液相色谱仪进行检测。测定参数:AC-QUITYUPLCTMBEHC18柱(2.1mm×100mmi.d.,1.7μm);流动相:乙腈:水=90:10;流速0.25ml/min;苏丹红Ⅰ检测波长为478nm,苏丹红Ⅱ、Ⅲ、Ⅳ检测波长为520nm。苏丹红Ⅰ、Ⅱ、Ⅲ、Ⅳ浓度在0.01～10μg/ml范围内与峰面积呈线性相关,r=0.9999;平均回收率85.7%～94.4%;定量限(S/N=10)0.01mg/kg;在本试验条件下苏丹红染料4种成分均无基质干扰。 相似文献
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苏丹红添加在禽用饲料中会使蛋黄颜色发红,所以一些不法饲料生产企业和禽类养殖企业违规添加使用.苏丹红是一种化学染色剂,其化学成分中含有一种叫萘的化合物,该物质具有偶氮结构,由于这种化学结构的性质决定了它具有致癌性,对人体的肝肾和器官具有明显的毒性作用.消费者在食用红心蛋后,会在体内缓慢的蓄集,久而久之会引起病变,甚至会增加患癌症的风险.试验证明,应用高效液相色谱法检测饲料中的苏丹红,具有操作简单、检测时间短(单一样品检测上机时间约40 min)、重复性好、离散系数0.18%～2.73%、回收率好、灵敏度高,最低检出限为0.1 mg/kg等特点.苏丹红Ⅰ检测回收率75.85%～93.68%,离散系数0.35%～1.88%;苏丹红Ⅱ检测回收率76.33%～94.68%,离散系数0.32%～1.96%;苏丹红Ⅲ检测回收率75.68%～95.06%,离散系数0.25%～2.73%;苏丹红Ⅳ检测回收率77.36%～96.66%,离散系数0.18%～1.53%. 相似文献
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三探草坪的起源、演化及其概念——几种外文、外语“草坪”一词及其他 总被引：1，自引：0，他引：1
初步发掘、整理了英、德、拉丁、俄、日等五种文字、语言中草坪一词内积淀的有关草坪起源与演化的信息。三证草坪草的分化 ,草坪的起源与早期演化均属自然。人类活动于草坪中 ,认识、利用和发展了草坪 ,可以劲直、也可以曲折。人类利用草坪的方式 ,无论中、外大致相同 ,利用的水平与社会整体发展的水平大体相应。草坪由草地分化发育 ,是草地的一个特殊类型。 相似文献
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Jessica A. Hokamp Mary B. Nabity 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》2016,45(1):28-56
Current conventional tests of kidney damage and function in blood (serum creatinine and urea nitrogen) and urine (urine protein creatinine ratio and urine specific gravity) are widely used for diagnosis and monitoring of kidney disease. However, they all have important limitations, and additional markers of glomerular filtration rate and glomerular and tubular damage are desirable, particularly for earlier detection of renal disease when therapy is most effective. Additionally, urinary markers of kidney damage and function may help localize damage to the affected portion of the kidney. In general, the presence of high‐ and intermediate‐molecular weight proteins in the urine are indicative of glomerular damage, while low‐molecular weight proteins and enzymes in the urine suggest tubular damage due to decreased reabsorption of proteins, direct tubular damage, or both. This review aims to discuss many of these new blood and urinary biomarkers in domestic veterinary species, focusing primarily on dogs and cats, how they may be used for diagnosis of renal disease, and their limitations. Additionally, a brief discussion of serum creatinine is presented, highlighting its limitations and important considerations for its improved interpretation in domestic species based on past literature and recent studies. 相似文献
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铅、镉胁迫对饲用高粱生长及铅、镉吸收和累积的影响 总被引：3，自引：0，他引：3
采用盆栽试验研究了不同浓度的土壤外源重金属Pb,Cd及其复合胁迫对饲用高粱（Sorghum vulgare）生长的影响及其对Pb和Cd的积累能力。结果表明：随着Pb和Cd单一及复合胁迫浓度的增加,饲用高粱株高、生物量呈降低趋势,Pb和Cd含量呈增加趋势,茎鞘Cd含量及Cd累积量高于叶片,叶片Pb含量及Pb累积量高于茎鞘。在复合胁迫下,低、中浓度的Pb和Cd处理表现出相互促进吸收累积,高浓度处理表现出相互抑制吸收累积的特性,饲用高粱对Cd的富集能力远大于Pb。研究结果将为利用饲用高粱修复重金属污染土壤提供理论依据。 相似文献
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法律政策对生物多样性及草原生物多样性保护影响评估 总被引：2，自引：0，他引：2
本研究针对国际国内关于生物多样性法律法规及政策的相关文件,分别进行了梳理、分析和研究,探讨了生物多样性相关法律法规的发展进程及其存在问题,深入了解和明确了生物多样性保护的国际原则、发展方向和本质。揭示了中国关于生物多样性保护特别是草原生物多样性保护法律法规发展现状及存在问题。根据中国具体国情出发,借鉴美国、欧盟和印度等国家经验,作为探寻中国制定生物多样性保护法律法规的思路和原则。基于此,对中国生物多样性保护法律政策的制定提出了几点建议。 相似文献
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为给动物源性食品中同时检测氟苯尼考（FF）及其主要代谢产物氟苯尼考胺（FFA）的残留提供新的安全可靠的方法，本研究建立了猪肉中FF及FFA残留检测的加速溶剂萃取/超高效液相色谱-荧光检测（ASE/UPLC-FLD）法。试验采用乙酸乙酯：氨水（98：2，V/V）为提取剂，样品经加速溶剂萃取后浓缩，用乙酸乙酯饱和正己烷除脂，再经浓缩复溶后进行UPLC-FLD检测。结果表明，FF及其代谢产物FFA在添加浓度为9.8~400和3.2~400 μg/kg的范围内线性关系良好，相关系数（R2）分别为0.9993和0.9999。FF的检测限（LOD）和定量限（LOQ）分别为3.3和9.8 μg/kg；FFA的LOD和LOQ分别为1.2和3.2 μg/kg。样品在LOQ、0.5 MRL、1.0 MRL和2.0 MRL加标水平下的平均回收率为82.92%~96.72%，相对标准偏差（RSD）低于3.11%。综上所述，加速溶剂萃取（ASE）方法省时、环保、提取效率高，超高效液相色谱-荧光检测（UPLC-FLD）检测方法高效、灵敏、回收率高，是符合检测标准的新方法。 相似文献
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Viscoelastic materials in veterinary ophthalmology 总被引：1，自引：1，他引：0
Viscoelastic materials have applications in both human and veterinary ophthalmology and orthopedics and for humans in otorhinolaryngology, urinary incontinence, cosmetic surgery and cosmetics. In ophthalmology, viscoelasties are most commonly used in facilitating cataract and other anterior segment surgeries, but also have applications in posterior segment surgery and in the topical management of keratoconjunctivitis sicca. Viscoelastics are routinely used during anterior segment surgery in filling and maintaining the anterior chamber, repositioning the iris, and to coat and protect the corneal endothelium, and expand the capsular bag prior to intraocular lens implantation. Viscoelastics can also be essential in the management of intraoperative complications such as miosis, hemorrhage, posterior capsular tears, and vitreous presentation. The most common products available for ophthalmic use include various concentrations of sodium hyaluronate, chondroitin sulfate, and hydroxypropylmethylcellulose. The physical properties of each viscoelastic material are dependent on chain length, and intra-and interchain interactions. The rheologic properties of viscosity, pseudoplasticity, viscoelasticity, and surface tension dictate the usefulness of each material for a specific purpose. 相似文献
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Objective: To assess the efficacy and safety of a formulation containing moxidectin and 6 in 1 vaccine in sheep under field conditions.
Design: Efficacy and safety study.
Animals: Two hundred and five crossbred Merino lambs and two hundred and eight Merino ewes were used in the studies.
Procedure: A formulation was made for the simultaneous treatment of sheep with moxidectin and immunisation against clostridial diseases and caseous lymphadenitis. The efficacy against nematodes, vaccine response and safety were assessed.
Results: Effective control of nematodes and responses to antigens were achieved following subcutaneous administration. The formulation was safe to administer; occasional minor tissue reactions were evident, but no other adverse effects of treatment were observed in either pregnant ewes or lambs, using either the recommended dose, or an overdose of the formulation.
Conclusion: Administration of a formulation containing moxidectin, five clostridial antigens and caseous lymphadenitis antigen proved safe and efficacious under field conditions. 相似文献
Design: Efficacy and safety study.
Animals: Two hundred and five crossbred Merino lambs and two hundred and eight Merino ewes were used in the studies.
Procedure: A formulation was made for the simultaneous treatment of sheep with moxidectin and immunisation against clostridial diseases and caseous lymphadenitis. The efficacy against nematodes, vaccine response and safety were assessed.
Results: Effective control of nematodes and responses to antigens were achieved following subcutaneous administration. The formulation was safe to administer; occasional minor tissue reactions were evident, but no other adverse effects of treatment were observed in either pregnant ewes or lambs, using either the recommended dose, or an overdose of the formulation.
Conclusion: Administration of a formulation containing moxidectin, five clostridial antigens and caseous lymphadenitis antigen proved safe and efficacious under field conditions. 相似文献
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硒钴配施对紫花苜蓿产草量和品质的影响 总被引：3，自引：1，他引：2
在河南省黄河滩区,研究叶面喷洒硒肥以及硒钴配施,对紫花苜蓿产草量和品质的影响。结果表明:2种微肥在分枝期到开花期能够显著地提高苜蓿茎叶比,降低鲜干比,增加干物质含量;从开花期到成熟期能显著地提高其株高;硒肥仅能提高苜蓿营养生长期的产草量,而硒钴配施则能显著提高总产草量;硒以及硒钴配施不但能显著提高青干草中的硒钴含量,而且能显著提高Fe、Mn、Cu、Zn、Mo和B等微量元素的含量,其中以Se和Mo的提高幅度最大;硒钴配施能显著提高干草粗蛋白质、粗灰分和钙的含量,显著降低含水量和粗纤维含量,改善牧草品质。 相似文献