Sociodemographic, health and lifestyle characteristics reported by discrete groups of adult dietary supplement users in Alberta, Canada: findings from The Tomorrow Project     

Robson PJ  Siou GL  Ullman R  Bryant HE 《Public health nutrition》2008,11(12):1238-1247

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Steam-blanched highbush blueberry (Vaccinium corymbosum L.) juice: phenolic profile and antioxidant capacity in relation to cultivar selection     

Brambilla A  Lo Scalzo R  Bertolo G  Torreggiani D 《Journal of agricultural and food chemistry》2008,56(8):2643-2648

High-quality standards in blueberry juice can be obtained only taking into account fruit compositional variability and its preservation along the processing chain. In this work, five highbush blueberry cultivars from the same environmental growing conditions were individually processed into juice after an initial blanching step and the influence was studied of the cultivar on juice phenolic content, distribution and relative antioxidant activity, measured as scavenging capacity on the artificial free-radical 2,2-diphenyl-1-picrylhydrazyl (DPPH*). A chromatographic protocol was developed to separate all main phenolic compounds in berries. A total of 15 glycosylated anthocyanins, catechin, galactoside, glucoside, and rhamnoside quercetin 3-derivatives, and main benzoic and cinnamic acids were identified. The total content and relative distribution in anthocyanins, chlorogenic acid, and quercetin of each juice were dependent upon cultivar, and the total content was highly correlated (rxy=0.97) to the antioxidant capacity. A selective protective effect of berry blanching in juice processing can be observed on more labile anthocyanin compounds.  相似文献   

Microbiological and chemical characterization of a typical Italian cheese: Robiola di Roccaverano     

Bonetta S  Coïsson JD  Barile D  Bonetta S  Travaglia F  Piana G  Carraro E  Arlorio M 《Journal of agricultural and food chemistry》2008,56(16):7223-7230

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Alternative sampling to establish the Escherichia coli O157 status on beef cattle farms     

Cobbaut K  Houf K  Douidah L  Van Hende J  De Zutter L 《Veterinary microbiology》2008,132(1-2):205-210

Prevalence of Escherichia coli O157 in cattle at the farm level is mostly determined by taking individually rectal samples. From the animal welfare point of view the collection of such samples on the farm is not advisable. The present study evaluated alternative sample types to assess the E. coli O157 status of cattle farms. Twelve closed cattle farms were visited twice with a time interval of 6-8 months. Rectal and hide surface samples (the nose, the neck, the shoulder, the flank, and the round) were collected from beef cattle within the period of 5 months before slaughter and from their environment (overshoes from the pen bedding, swabs from the pen barrier, feed and water). Statistical analysis revealed that from all samples taken only the "overshoe method" might be a good sampling technique to substitute the collection of individual fecal samples to establish the E. coli O157 status of a farm and even a pen. Characterization of the isolates, using pulsed field gel electrophoresis, revealed that on each positive farm only one genotype was presented, even after a period of more than 6 months.  相似文献   

In vitro mechanical evaluation of medial plating for pantarsal arthrodesis in dogs     

Guillou RP  Frank JD  Sinnott MT  Meyer EG  Haut RC  Déjardin LM 《American journal of veterinary research》2008,69(11):1406-1412

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Reproducible infection model for Clostridium perfringens in broiler chickens     

Pedersen K  Bjerrum L  Heuer OE  Lo Fo Wong DM  Nauerby B 《Avian diseases》2008,52(1):34-39

Experiments were carried out to establish an infection and disease model for Clostridium perfringens in broiler chickens. Previous experiments had failed to induce disease and only a transient colonization with challenge strains had been obtained. In the present study, two series of experiments were conducted, each involving four groups of chickens with each group kept in separate isolators. A coccidial vaccine given at 10 times the prescribed dosage was used to promote the development of necrotic enteritis. In the first experiment, cultures of C. perfringens were mixed with the feed at day 9, 10, 11, and 12, and the coccidial vaccine was given at day 10, whereas in the second experiment, C. perfringens cultures were mixed with the feed at day 17, 18, 19, and 20, and the coccidial vaccine was given at day 18. Chickens were examined at day 9, 11, 12, and 15 (Experiment 1), and at day 17, 18, 20, and 24 (Experiment 2). There was no mortality in any of the groups; however, chickens in the groups receiving both coccidial vaccine and C. peifringens developed the subclinical form of necrotic enteritis, demonstrated by focal necroses in the small intestine, whereas chickens in control groups or groups receiving only coccidial vaccine or only C. perfringens cultures developed no necroses. The results underline the importance of predisposing factors in the development of necrotic enteritis.  相似文献   

Characterization of the torsional structural properties of feline femurs and surrogate bone models for mechanical testing of orthopedic implants     

Danielle M. Marturello  Feng Wei  Loïc M. Djardin 《Veterinary surgery : VS》2019,48(2):229-236

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Morphological diversity of female camel (Camelus dromedarius) populations in Morocco     

Boujenane  Ismaïl  El Khattaby  Nadia  Laghouaouta  Houda  Badaoui  Bouabid  Piro  Mohammed 《Tropical animal health and production》2019,51(6):1367-1373

Tropical Animal Health and Production - Fourteen body measurements of 132 adult female camels belonging to three populations Guerzni (60), Khouari (28), and Marmouri (44) reared in 38 herds of 8...  相似文献   

DDT、666对白翅叶蝉的毒效、残效及混用增效作用     

罗肖南  黄邦侃 《植物保护学报》1963,2(1):69-74

DDT 是防治白翅叶蝉的良好药剂。25?T 乳剂1∶200和1∶300倍液的毒效均在90%以上;1∶400倍液的毒效为75—95%。2.5—5?T 粉剂的毒效也达90%以上。田间使用 DDT 防治白翅叶蝉的残效期约为10—12天。666单独用来防治白翅叶蝉效果甚差,但与 DDT 混合使用有增效作用,残效期与单独使用 DDT 相似;二者混用是最合理的施用方式,可以节省 DDT 用药量,减低药费,同时对多种稻虫可收综合防治之效。25?T 乳剂和6%可湿性666按1∶1∶400及1∶1∶600混用,其毒效相当于单用 DDT 1∶200及1∶300者;用1∶1∶500喷射效果比单用 DDT 1∶300者还略高;5% DDT 粉剂和0.5f6粉剂按1∶1混用,其毒效也和单用5% DDT 粉剂相接近。  相似文献   

关中棉花枯萎病及其防治研究   总被引：3，自引：1，他引：2  

罗家龙  赵丹  王正芬  吉冉中 《植物保护学报》1963,2(2):187-194

棉花枯萎病在陕西关中,近几年由局部地区发展到点面发生,蔓延速度和面积已超过黄萎病。一般发病和死苗在30—50%,严重的棉田在90%以上。一些黄萎病区逐渐转为枯、黄萎混合发生区,枯黄萎同株型极为普遍。此病在棉花苗期即表现症状,潛育期为10—20天。1—2片真叶发病率达10—15%;5—6片真叶(蕾期)即会引起大量枯死和萎蔫。土壤致病温度平均在20°—25℃,维持10天以上,发病最烈;28℃以上病势减轻。土壤含水量在60—75%之间,枯萎病发病率最高。每年枯萎病发生消长与5、6月份的温、湿度及降雨量有一定关系。以4—6片真叶期,枯死植株发展较快,开花后期枯死率显著下降,到吐絮期尚有高峯出现。各品种间的枯死规律基本相同;仅有枯死程度上的差异。防治棉花枯萎病主要途径以抗病品种为主。由1956—1961年已鉴定出抗病品种(系)有52-128、鸭棚、147-Φ、57-50、南通二号、F96,F80等。其中确定能在病区生产应用的有52-128,鸭棚,平均降低发病率在30—70%,增产15—40%左右。并发现抗病免疫类型有中棉“嘉定硬子”。远缘杂交材料(353×G 1472)×芙蓉葵353 F_2可作杂交原始亲本材料。在病区增施氮、磷无机肥料,有降低苗期枯萎病的作用。轮作防病在关中采取二年小(?)、玉米轮作倒茬,发病率由原来的85%降低到38%,死苗率由50%下降到20%,有一定防病增产效果。  相似文献