Annales de recherches veterinaires. Annals of veterinary research最新文献_第4页

[Human endothelial cells activated by interferon gamma, by interleukin-1 and TNF inhibit the replication of Toxoplasma gondii]. [干扰素γ、白细胞介素-1和TNF激活的人内皮细胞抑制弓形虫的复制]。

Annales de recherches veterinaires. Annals of veterinary research Pub Date : 1992-01-01

I H Dimier, J P Woodman, D T Bout

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Comparative vitamin E requirements and metabolism in livestock. 比较维生素E的需要量和牲畜的代谢。

Annales de recherches veterinaires. Annals of veterinary research Pub Date : 1992-01-01

N Hidiroglou, N Cave, A S Atwall, E R Farnworth, L R McDowell

{"title":"Comparative vitamin E requirements and metabolism in livestock.","authors":"N Hidiroglou, N Cave, A S Atwall, E R Farnworth, L R McDowell","doi":"","DOIUrl":"","url":null,"abstract":"It has been over 50 years since vitamin E was originally described as a lipid-soluble dietary constituent required for normal reproduction in rats. Vitamin E is recognized as an essential vitamin required for all classes of animals functioning predominantly as an intracellular antioxidant in maintaining the integrity of biological cell membranes. Although a wealth of information has been gathered on clinical signs of vitamin E deficiency, establishing its requirements for animals has been exceedingly difficult because of interrelationships with other dietary constituents. Vitamin E requirements for animals cannot be defined in isolation. Requirements are influenced by the amount and type of fat (particularly with monogastrics) and degree of fat oxidation in the diet; the presence of antioxidants; dietary selenium (closely interrelated with vitamin E), iron, copper, and sulphur amino acids, as well as the physiological status of the animal. Other factors to be considered in assessing vitamin E needs of animals under commercial production conditions include: a) variability of vitamin E content in feedstuffs; b) poor stability of vitamin E during processing and storage of feeds; and c) management practices resulting in overstressed animals. Information on the function of or requirements for vitamin E in animals is very incomplete. Estimated dietary vitamin E requirements for most animal species are in the range of 10-40 IU/kg of diet. Of particular concern is the lack of vitamin E requirement information regarding young dairy and beef calves. Although good experimental evidence indicates a beneficial role of supplemental vitamin E above physiological levels on overall performance, enhanced immunocompetence and preservation of meat and milk products, levels of vitamin E required to produce these desired effects needs to be firmly established. Present estimated dietary requirements for vitamin E across species may need to be redefined as new information becomes available about the role this nutrient plays in growth, health and overall metabolism.","PeriodicalId":7914,"journal":{"name":"Annales de recherches veterinaires. Annals of veterinary research","volume":"23 4","pages":"337-59"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12645744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An enzyme linked immunosorbent assay (ELISA) for the detection of antibodies to the porcine reproductive and respiratory syndrome (PRRS) virus. 采用酶联免疫吸附试验(ELISA)检测猪繁殖与呼吸综合征(PRRS)病毒抗体。

Annales de recherches veterinaires. Annals of veterinary research Pub Date : 1992-01-01

E Albina, Y Leforban, T Baron, J P Plana Duran, P Vannier

引用次数: 0

[Content of nitrate in milk. Relationship with its concentration in the water supply for livestock]. 牛奶中硝酸盐的含量。[与牲畜用水中其浓度的关系]。

Annales de recherches veterinaires. Annals of veterinary research Pub Date : 1992-01-01

M Kammerer, L Pinault, H Pouliquen

引用次数: 0

In vitro colonization of porcine trachea by Mycoplasma hyopneumoniae. 猪肺炎支原体在猪气管的体外定植。

Annales de recherches veterinaires. Annals of veterinary research Pub Date : 1992-01-01

M Jacques, B Blanchard, B Foiry, C Girard, M Kobisch

{"title":"In vitro colonization of porcine trachea by Mycoplasma hyopneumoniae.","authors":"M Jacques, B Blanchard, B Foiry, C Girard, M Kobisch","doi":"","DOIUrl":"","url":null,"abstract":"Porcine tracheae maintained in culture were used in order to study the colonization by Mycoplasma hyopneumoniae. Rings excised from tracheae of newborn piglets were infected with M hyopneumoniae strain BQ 14 and, after different incubation times, were examined by light and electron microscopy. Non-infected tracheal mucosae maintained a normal appearance for several days. Infected tracheal rings showed progressive colonization with concomitant progressive damage to the mucosal surface. Early on during the infection, few mycoplasmas occurred over a ciliated epithelium. As the infection progressed, there was gradual loss of cilia; mycoplasmas tended to form microcolonies and to accumulate over the remaining ciliated cells. Mycoplasmas, first seen at the apex of the cilia, were then seen deeper in the inter-ciliary space; some were even seen in contact with microvilli. In histological investigation, the final stage of the infection was characterized by a marked destruction of the epithelium with exfoliation of the epithelial cells. Infected mucosae showed typical damage caused by M hyopneumoniae, namely reduction of ciliary activity after 5 days, loss of cilia, and sloughing of ciliated cells. Our data indicate that porcine tracheal organ culture can be advantageously used to study colonization by M hyopneumoniae.","PeriodicalId":7914,"journal":{"name":"Annales de recherches veterinaires. Annals of veterinary research","volume":"23 3","pages":"239-47"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12587213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

[The major histocompatibility complex of humans]. [人类主要的组织相容性复合体]。

Annales de recherches veterinaires. Annals of veterinary research Pub Date : 1992-01-01

D Charron

引用次数: 0

[Virus-lymphocyte interactions for the production of alpha-interferon]. [病毒-淋巴细胞相互作用产生干扰素]。

Annales de recherches veterinaires. Annals of veterinary research Pub Date : 1992-01-01

B Charley, H Laude

引用次数: 0

Pharmacokinetics and urinary excretion of sulfadiazine in buffalo calves. 磺胺嘧啶在水牛体内的药代动力学和尿排泄。

Annales de recherches veterinaires. Annals of veterinary research Pub Date : 1992-01-01

S K Jain, R P Uppal, B D Garg

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[Muscular lesions and enzymatic activities in fighting bulls]. [斗牛中的肌肉损伤和酶活性]。

Annales de recherches veterinaires. Annals of veterinary research Pub Date : 1992-01-01

A Purroy, S García-Belenguer, J M Gonzalez, M Gascón, M Barberán

引用次数: 0

[The cellular response in regard to the core protein p24 of the bovine leukemia virus (BLV)]. [细胞对牛白血病病毒(BLV)核心蛋白p24的反应]。

Annales de recherches veterinaires. Annals of veterinary research Pub Date : 1992-01-01

A Mager, M Mulumba, R Masengo, S L'Hoest, C Didembourg, J Letesson, A Depelchin

引用次数: 0