不同生态条件下小麦子粒中戊聚糖含量的研究   总被引：8，自引：0，他引：8  

李春喜  邱宗波  姜丽娜  张霞 《华北农学报》2002,17(2):1-4

采用统一供种，统一试验方案，对河南省有代表性的生态地点的8个小麦品种的戊聚糖含量、蛋白质含量，吉粒重和产量进行了分析，初步认为生态因素是影响小麦子粒戊聚糖含量，蛋白质含是，千粒重和产量的重要因素，品种遗传因素对小麦品种的影响有着不可忽视的作用。综合戊聚糖含量、蛋白质含量产量来看，以豫麦34号为最好。  相似文献   

灰树花不同菌株液体深层培养蛋白质含量的测定     

宋爱荣  张玉娜  孙克梅  张英昊  万平平 《食用菌学报》2002,9(3):9-12

在液体培养条件下测定了发酵液中5个灰树花菌株蛋白质含量的变化。结果表明，接种后第6天发酵液中蛋白质含量最高，Gf961菌株发酵液中的蛋白质含量为0.58%，Gf962菌株发酵液中的蛋白质含量最低，为0.30%，随着培养时间的延长，发酵液中蛋白质含量逐渐下降，接种后第9天最低，随后以呈上升趋势。但上升的幅度较小。试验为确定从发酵液中提取蛋白质的最佳时期提供了一定的理论依据。  相似文献   

PDCA循环工作法在培训教研室制度建设中的应用实践     

邓小芳  施侃侃  丁娜  王顺利 《国家林业局管理干部学院学报》2018,(1):26-31

PDCA循环理论由于管理层次多样、运行程序科学严谨,广泛适用于各项管理工作甚至是管理的各个环节。将其引入国家林业局管理干部学院培训教研室制度建设工作中,通过PDCA循环四阶段进行管理,包括科学制定目标和工作计划、认真组织实施制度建设工作、及时检查结果、积极反馈制度建设中存在的问题,提高了培训教研室制度建设和管理质量,使培训教研室制度建设和管理进一步科学化、规范化。  相似文献   

Comparison of Chemical Composition and Biological Properties of Essential Oils Obtained by Hydrodistillation and Steam Distillation of Laurus nobilis L.     

Řebíčková  Kristýna  Bajer  Tomáš  Šilha  David  Ventura  Karel  Bajerová  Petra 《Plant foods for human nutrition (Dordrecht, Netherlands)》2020,75(4):495-504

Plant Foods for Human Nutrition - The purpose of this study was to compare the yield, chemical composition, antimicrobial and antioxidant properties of essential oils isolated from leaves of Laurus...  相似文献   

Application of peracetic acid and quarternary ammonium disinfectants as a part of sanitary treatment in a poultry house and poultry processing plant     

Kasková A  Ondrasovicová O  Vargová M  Ondrasovic M  Venglovský J 《Zoonoses and public health》2007,54(3-4):125-130

Hygiene and sanitation play a major role in any effective disease control programme for poultry production and processing premises. Various deficiencies in disinfection may induce that chains of infections are not broken from one stock to another. The present study investigated the efficacy of disinfection on a broiler farm and in a plant processing poultry from the investigated farm. Besides inspection of disinfection, the influence of contamination on broiler carcasses and consequences of this contamination on sanitation of the processing lines were studied. Swabs from surfaces coming into contact with the handled raw material were taken and evaluated. The results obtained by a standard microbiological swab method were evaluated and compared with an ATP-bioluminescence method. The investigations included determination of total counts of microorganisms, coliform bacteria and moulds. When employing the standard plate-count method, the total counts of microorganisms (TCM) reached <1, 1-100 and >100 CFU in 0, 12 and 88% swabs on poultry farm and in 22%, 36% and 42% swabs in the processing plant, respectively. The bioluminescence method was used only in the processing plant and contamination corresponding to <100, 100-300 and >300 relative light units (RLU) was detected in 80%, 10% and 10% swabs respectively.  相似文献   

Artificial inoculation and susceptibility of Pinus armandii to Dothistroma septosporum     

Zuzana Jánošíková  Emília Ondrušková  Katarína Adamčíková 《Forest Pathology》2023,53(5):e12826

Dothistroma needle blight (DNB) is a serious needle disease of conifers that primarily affects pine species (Pinus spp.). Dothistroma septosporum is one of the DNB pathogens that has a diverse range of host species excluding Pinus armandii. In 15 inoculated P. armandii seedlings, D. septosporum acervuli were observed in 43 infected needles of ten seedlings with a mean disease severity of 1.11% at 25 weeks after inoculations, demonstrating the potential of D. septosporum to cause symptoms on the needles of P. armandii via artificial inoculation. The disease severity of P. armandii was similar to the positive control, Pinus nigra (median 0.75 for P. armandii to 0.70 for P. nigra), thus, P. armandii acts under artificial conditions as a susceptible host species.  相似文献   

Experimental transmission of Caryospora kutzeri (Apicomplexa: Eimeriidae) by rodent hosts     

Volf J  Modrý D  Koudela B 《Folia parasitologica》2001,48(1):11-14

Four laboratory-hatched European kestrels Falco tinnunculus L. were fed on laboratory mice and common voles Microtus arvalis Pallas previously inoculated with different doses of sporulated oocysts of Caryospora kutzeri B?er, 1982. Two kestrels that were fed infected mice shed C. kurtzeri oocysts 6 days after ingesting murine tissues. To compare direct and indirect transmissions, two of the kestrels were subsequently directly inoculated with 10(5) sporulated C. kutzeri oocysts and became patent on days 8 and 9 and shed caryosporan oocysts up to day 25 post inoculation. Additionally, four mice were inoculated with 10(6) oocysts in order to examine mouse tissues for the presence of developmental stages of C. kutzeri. No coccidian stages were found in the tissues of inoculated mice. The experiment showed that developmental stages of C. kutzeri are able to survive in mouse tissues and cause infection of suitable host after their ingestion.  相似文献   

Caryospora varaniornati sp. n. (Apicomplexa: Eimeriidae) in the Nile monitor, Varanus (Polydaedalus) niloticus species complex     

Modrý D  Slapeta JR  Knotek Z  Koudela B 《Folia parasitologica》2001,48(1):7-10

Parasitological examination of two ornate Nile monitors Varanus ornatus (Daudin, 1803) imported from Benin revealed the presence of a new species of Caryospora. Oocysts of Caryospora varaniornati sp. n. are spherical to slightly subspherical, 12.0 (11-12.5) x 11.5 (11-12) microm, without amicropyle and oocyst residuum, and occasionally possessing one small polar granule. Sporocysts are broadly ellipsoidal, 8.8 (8.5-9.5) x 6.7 (6.5-7) microm; a lentil-like Stieda body is present, ca. 0.5 x 1 microm; substieda body not visible. Experimental infection of a closely related host, Varanus niloticus (L.), did not lead to the oocyst excretion despite the fact that one of the experimentally inoculated monitors was immunosuppressed by dexamethasone. Histological examination did not reveal stages of coccidian development. Therefore, it is possible that C. varaniornati is strictly host specific.  相似文献   

Effect of fast protein liquid chromatography fractionated salivary gland extracts from different ixodid tick species on interleukin-8 binding to its cell receptors   总被引：2，自引：0，他引：2  

Kocáková P  Sláviková M  Hajnická V  Slovák M  Gasperík J  Vancová I  Fuchsberger N  Nuttall PA 《Folia parasitologica》2003,50(1):79-84

Interleukin-8 plays a critical role in inflammatory processes. Hence generation of molecules with anti-IL-8 activity is likely to be important for successful feeding and for survival of the ticks. Anti-IL-8 activity was studied in saliva of three ixodid tick species--Dermacentor reticulatus (Fabricius, 1794), Rhipicephalus appendiculatus Neumann, 1901, and Amblyomma variegatum (Fabricius, 1794). The greatest activity was shown in saliva prepared from D. reticulatus. The activity was attributed to tick salivary gland molecules that bind to IL-8, preventing binding of the chemokine to its specific receptor, rather than to occupation of the IL-8 cell receptor by the tick molecules. The distribution of anti-IL-8 activity in fast protein liquid chromatography (FPLC) fractions of salivary gland extracts (SGE) derived from adult female D. reticulatus, R. appendiculatus and A. variegatum was compared directly by both ELISA and receptor-binding inhibition assays. The correspondence in results with fractions of SGE from ELISA is consistent with detection of tick molecules that inhibit IL-8 binding to its receptor. As IL-8 is an important chemoattractant and activator of neutrophils, the presence of an anti-IL-8 activity in tick saliva indicates that neutrophils play an important role in the host response to parasitism by ticks.  相似文献   

A survey for BVDV antibodies in cattle farms in Slovakia and genetic typing of BVDV isolates from imported animals     

Vilcek S  Mojzisová J  Bajová V  Paulík S  Strojný L  Durkovic B  Hipíková V 《Acta veterinaria Hungarica》2003,51(2):229-236

A serological survey for bovine viral diarrhoea virus (BVDV) antibodies on a collection of 1295 serum samples obtained from 6-12 months old cattle originating from 45 farms in Slovakia was carried out. On 13 farms more than 90% of the examined animals were seropositive, on 14 farms 71-90% seroprevalence was observed, on 13 farms only 50-70% animals were found to be positive for BVDV antibodies, while the remaining 5 farms showed fewer than 50% seropositive animals. The average incidence of BVDV antibodies (around 70%) was similar as determined 30 years ago. Of 84 serum samples from seronegative animals originating from 14 farms in which 70-98% seropositivity was observed, six were positive in Ag-BVDV ELISA indicating persistently infected (PI) cattle. On a farm to which animals were imported from abroad, a BVD outbreak was observed. Of 110 animals tested, four were positive in Ag-ELISA indicating the presence of PI cattle on this farm. Genetic typing of two isolates from imported animals performed by RT-PCR (324/326 primers from 5'-UTR), sequencing of PCR products and computer-assisted phylogenetic analysis revealed that they belong to BVDV-1 h group.  相似文献