共查询到20条相似文献，搜索用时 62 毫秒
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减少环境污染,保证食品安全,是我们每一个企业应具有的责任和使命。多年来奥特奇潜心研究,用天然的方法取代化学添加剂。他们是怎样做的?面对未来的挑战,他们又将如何继续走下去?……带着这些问题《,中国畜牧杂志》的记者采访了奥特奇中国区商务总经理江南女士,在这里与大家共同分享“奥特奇的天然解决之道”,也许我们从中能学到些什么! 相似文献
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无论转山拜寺，都意在追求一种圆满。马年里，世上的所有神与仙都会聚集到冈仁波齐来，此时转山，不仅是朝拜冈仁波齐的山神，也包括其他诸神，所以功德更大。天上飞着鸟，山中有各种动物……它们其实就是诸位神灵的化身或使者。 相似文献
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如今养殖业的塑料制品应用广泛,已占有相当的投资比例。如塑料托盘、周转箱、笼、筐、桶等。由于这些制品大多是由聚乙烯注塑而成,有的在加工过程中掺入了轻钙及再生塑料,加之使用环境及外力影响,常常导致大量破损而“跑冒滴漏”,造成不必要的损失。“扔掉可惜,卖又不值钱”,有许多养殖户在探讨如何修补利用这些塑料制品。 相似文献
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在近几年的工作实践中经常遇到犬胰腺炎病例，共计２３例，主要是一些过肥的犬，经笔者治疗治愈率在８０％以上。１病因可能是多因素的。主要有营养因素：过肥、高脂防日粮和血脂蛋白过多等；药物因素：怀疑有噻嗪类药物、磺胺类药物、四环素以及皮质激素等对其有促发作用；疾病因素：弓形体、感染性腹膜炎、广泛白细胞缺少症等都与本病有关；还有一些其它因素。２临床症状特别是一些营养过剩、体态过肥的老年犬最易发生此病。母犬较公犬易患。患犬的临床症状不一，主要以呕吐、厌食、沉郁、有时见到出血性腹泻。严重病例可发生休克和虚脱，… 相似文献
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在禽精子的冷冻和融化期间观察其超微结构的变化,用以研究精子被破坏的有关因素。用各种稀释液稀释的精液用颗粒法冷冻或在5℃贮存24小时。这些样品用于电子显微镜扫描(SEM)和透射电子显微镜(TEM)里的单阶段碳复制。1.当用 SEM 对冷冻-融化精子进行扫描时,约10%的精子是弯曲的,7%表现出顶体变形。“弯曲”精子的头在颈部和整个中段越折。最严重的顶体畸形是从核前端完全脱离。然而,有时只见精子头的后端发生肿胀而没有 相似文献
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许多饲料或饲料添加剂产品在宣传资料中把产品的天然属性混同于安全属性,迎合广大消费者对饲料安全的需要。那么,是否可以认为天然产品必然是安全的,或者比人工合成产品更安全呢?事实上,饲料产品的天然属性和安全属性并不存在必然逻辑关系。微生态制剂——除了少数微生态制剂产 相似文献
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《中国兽医学报》2019,(9):1758-1762
为了研究马鼻狂蝇蝇蛆感染蒙古马的细胞免疫反应,2015年在内蒙古呼和浩特市郊区屠宰场收集感染马鼻狂蝇蝇蛆的蒙古马4匹,健康蒙古马2匹,采集马的咽部和咽后淋巴结进行HE染色和免疫组化试验,并利用graphpad prism5.0软件对感染组和对照组的CD3、CD20、CD68阳性细胞表达率进行分析。免疫组化结果显示,感染组与对照组相比,咽部组织内B淋巴细胞表达率差异显著(P0.05),T淋巴细胞、巨噬细胞表达率差异极显著(P0.001)。咽后淋巴结内的T淋巴细胞的表达率差异显著(P0.05),B细胞和巨噬细胞表达率差异极显著(P0.001)。在咽部和咽后淋巴结B淋巴细胞增多说明,获得性免疫反应发挥作用以后产生了针对马鼻狂蝇蝇蛆的特异性免疫球蛋白。T淋巴细胞数量增多说明,在抗原提成细胞中T细胞识别抗原产生,宿主已经产生了获得性免疫反应。巨噬细胞数量增多,说明巨噬细胞在感染组的抗原提成中发挥着巨大作用,能够提呈抗原而且发起细胞介导免疫反应。 相似文献
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为了探索马鼻狂蝇蛆感染蒙古马的免疫学机制,在呼和浩特市屠宰场采集感染马鼻狂蝇蝇蛆的4头蒙古马的咽部和扁桃体组织,同时收集2头健康蒙古马作为对照组,制作常规石蜡切片,通过HE染色和免疫组化试验,对咽部和扁桃体组织T淋巴细胞(CD3^+)、B淋巴细胞(CD20^+)、巨噬细胞(CD68^+)进行分析。结果显示:感染组咽部黏膜的黏膜下层有虫卵肉芽肿形成,咽部黏膜存在大量的巨噬细胞、嗜酸性粒细胞;免疫组化显示,与对照组相比,感染组咽部组织内CD3^+细胞显著上升(P<0. 05),CD20^+、CD68^+细胞极显著上升(P<0. 01);感染组扁桃体内的CD20^+细胞显著上升(P <0. 05),CD3^+、CD68^+细胞极显著上升(P<0. 01)。结果表明:感染马鼻狂蝇蛆后蒙古马出现了Ⅰ型超敏反应和Ⅳ型超敏反应,T、B淋巴细胞及巨噬细胞增多表明机体获得性免疫反应发挥了作用,并可能产生了针对马鼻狂蝇蝇蛆的特异性免疫球蛋白。 相似文献
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Differences in serum protein 2D gel electrophoresis patterns of Przewalski's (Mongolian wild horse) and thoroughbred horses 
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下载免费PDF全文 The objective of this study was to assess differences in serum protein expression profiles of Przewalski's (Mongolian wild horse) and thoroughbred horses using proteome analysis. The serum proteins were separated by two‐dimensional electrophoresis (2‐DE) and five different gene products were identified. Proteins represented by the five spots were identified by matrix‐assisted laser desorption ionization–time‐of‐flight (MALDI–TOF) mass spectrometry (MS)/MS technology. The identities of all proteins were deduced based on their similarity to proteins in the human plasma protein database. Three proteins (a haptoglobin‐2 alpha glycoprotein and two haptoglobin‐2beta glycoproteins with different accession numbers) were downregulated in Przewalski's horse sera compared to thoroughbred horse sera. Moreover, two proteins (tetraspanin‐18 and pM5) were upregulated in Przewalski's horses compared to thoroughbred horses. Haptoglobin‐2 alpha and haptoglobin‐2beta may serve as candidate molecules in future studies of inflammation, coagulation, immune modulation and pro‐oxidant and antioxidant activity with consequential effects on the entire metabolism of the horse. 相似文献
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Isenbügel E 《Schweizer Archiv für Tierheilkunde》2002,144(7):323-329
Over 45 million years of evolution the horse developed to a highly specialized animal in anatomy, physiology and behavior. No other animal had influenced the economic and cultural history of men to such extent. Hunting prey since the ice age, domesticated 4000 B.C. and used for thousands of years as unique animal all over the world has attained a new role today as partner in sport, as companion animal and even as cotherapeutic. The well known behavioral demands in use and keeping are still often not fulfilled. 相似文献
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S M Rosanowski N Cogger C W Rogers C F Bolwell J Benschop M A Stevenson 《New Zealand veterinary journal》2013,61(5):245-253
AIMS: To investigate property-level factors associated with the movement of horses from non-commercial horse properties, including the size and location of the property, number and reason for keeping horses. METHODS: Using a cross-sectional survey 2,912 questionnaires were posted to randomly selected non-commercial horse properties listed in a rural property database. The survey collected information about the number of horses, and reasons for keeping horses on the property, and any movement of horses in the previous 12 months. Three property-level outcomes were investigated; the movement status of the property, the frequency of movement events, and the median distance travelled from a property. Associations were examined using logistic regression and Kruskal-Wallis analysis of variance. RESULTS: In total 62.0% (488/791) of respondents reported at least one movement event in the year prior to the survey, for a total of 22,050 movement events. The number of movement events from a property varied significantly by the number of horses on the property (p<0.02), while the median distance travelled per property varied significantly by both region (p<0.03) and property size (p<0.01). Region, property size, the number of horses kept, and keeping horses for competition, recreation, racing or as pets were all significantly associated with movement status in the multivariable analyses (p<0.001). CONCLUSION AND CLINICAL RELEVANCE: This study showed that there are characteristics of non-commercial horse properties that influence movement behaviour. During an exotic disease outbreak the ability to identify properties with these characteristics for targeted control will enhance the effectiveness of control measures. 相似文献
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