Follicular Morphology, Oocyte Diameter and Localisation of Fibroblast Growth Factors in the Domestic Dog Ovary     

N Songsasen  A Fickes  BS Pukazhenthi  DE Wildt 《Reproduction in domestic animals》2009,44(S2):65-70

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Effect of magnitude and direction of force on laryngeal abduction: Implications for the nerve‐muscle pedicle graft technique     

P. CRAMP  F. J. DERKSEN  J. A. STICK  H. DE FEIJTER‐RUPP  N. G. ELVIN  J. HAUPTMAN  N. E. ROBINSON 《Equine veterinary journal》2009,41(4):328-333

Reasons for performing study: The nerve‐muscle pedicle graft technique is a treatment for recurrent laryngeal neuropathy (RLN), but the optimal placement of the pedicles within the cricoarytenoideus dorsalis (CAD) muscle is unknown. Hypothesis: The magnitude and direction of force placed on the muscular process of the left arytenoid cartilage affects the magnitude of laryngeal abduction. Methods: Five larynges were harvested from cadavers. Using increments of 0.98 N, a dead‐weight force generator applied a force of 0–14.7 N for 1 min each to the left muscular process at 0, 10, 20, 30, 40, 50, 60 and 70° angles. The rima glottis was photographed digitally 1 min after each force had been applied. Distances between biomarkers (Lines 1–4) and right to left angle quotient (RLQ) were used to assess the degree of left arytenoid abduction. Results: Increasing force from 0–14.7 N progressively and significantly increased the length of all lines and RLQ, indicating abduction. Furthermore, there was a significant interaction between force and angles. Applying forces of 7.84 N or greater (Lines 2–4 and RLQ) or 11.76 N or greater (Line 1) at angles 0, 10, 20 and 30° resulted in significantly greater abduction than applying the same forces at 40, 50, 60 and 70°. Angles of 0–30° correspond with the direction of pull exerted by the lateral compartment of the CAD muscle. Conclusion: In RLN, nerve‐muscle pedicle grafts should be placed preferentially in the lateral rather than in the medial compartment of the CAD muscle. Potential relevance: The information presented can be used to assist surgeons in the planning and application of the nerve‐muscle pedicle graft procedure.  相似文献   

Treatment of a Periarticular Tibial Fracture in a Foal with a Hybrid External Fixator   总被引：1，自引：0，他引：1  

ROBERTA FERRO DE GODOY  DScVM    RICHARD R. FILGUEIRAS  MS    LÍLIAN A. GONTIJO  DVM    FÁBIO HENRIQUE BEZERRA XIMENES  DVM    LIANA VILLELA DE GOUVÊA  DVM    CRISTIANE DA SILVA PEREIRA  DVM    RICARDO M. ALMEIDA  MS    CECI RIBEIRO LEITE  DVM    ANTÔNIO RAPHAEL T. NETO  DScVM    JOSÉ RENATO JUNQUEIRA BORGES  DScVM 《Veterinary surgery : VS》2009,38(5):650-653

Objective— To report repair of a right proximal tibial Salter-Harris type II fracture in a foal with a hybrid external fixator (HEF).
Study Design— Case report.
Animals— A 5-month-old male foal.
Methods— After open surgical reduction, an HEF built with wires, 2 half-rings, 3 half-threaded connecting rods, and Schanz pins was used to stabilize the fracture.
Results— Immediately after surgery, the foal had relatively good weight bearing. The HEF was removed at 60 days after radiographic confirmation of healing.
Conclusions— HEF can be used to stabilize a proximal tibial Salter-Harris type II fracture in a 5-month-old foal.
Clinical Relevance— HEF should be considered as another option for repair of proximal tibial Salter-Harris type II fractures in foals.  相似文献   

复方恩诺沙星可溶性粉对畜禽主要致病菌的体外抑菌效果   总被引：3，自引：1，他引：2  

德育慧  樊明春  王枫 《动物医学进展》2009,30(7):46-49

采用纸片扩散法(K-B法)测定复方恩诺沙星可溶性粉对畜禽主要致病菌的敏感性,采用试管倍比稀释法测定复方恩诺沙星可溶性粉对畜禽主要致病菌的最小抑菌浓度(MIC)和最小杀菌浓度(MBC)。结果表明,病原性大肠埃希菌、绿脓杆菌、金黄色葡萄球菌、鸡巴氏杆菌、猪巴氏杆菌和链球菌对复方恩诺沙星可溶性粉敏感,复方恩诺沙星可溶性粉对畜禽主要致病菌的MIC为0.0279μg/mL~3.575μg/mL,MBC为0.055μg/mL~7.11μg/mL。  相似文献   

IMAGING DIAGNOSIS—ACUTE NECROTIZING MYOPATHY IN A DOG     

LUISA DE RISIO  JAMES FRASER MCCONNELL  ALBERTA DE STEFANI  LARA MATIASEK  ALEJANDRO LUJAN FELIU-PASCUAL  GLORIA DIANE SHELTON 《Veterinary radiology & ultrasound》2009,50(6):639-643

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施肥对青海省山地草原类草场地上生物量的影响     

德科加  周青平  徐成体  蒋卫平 《中国土壤与肥料》2010,(3)

在青海省山地草原类草场进行了施肥试验,以确定不同施肥时期、不同施肥量组合对天然草地牧草鲜重的影响。结果表明,施肥可大幅度提高牧草产量,且因施肥量及施肥时期的不同,牧草产量差异大。施肥时间和施肥量间存在着交互作用,两者共同作用于牧草产量。施肥时间选择在6月25日,较其后的3个时期牧草鲜重分别增产20.71%、25.44%、27.28%;随着施肥时间的推后,牧草鲜重呈现持续下降趋势;3个不同施肥量处理的牧草鲜重分别比不施肥增产80.97%、86.26%和79.78%,施肥量在0~600 kg/hm2区间内,牧草鲜重变化呈抛物线型。通过综合比较分析,青藏高原山地草原类草场施氮肥时应选择在6月中下旬,施肥量应控制在420~600 kg/hm2之间。  相似文献   

高寒草甸土壤微生物群落功能多样性对广布弓背蚁蚁丘扰动的响应     

杨有芳  字洪标  刘敏  阿的鲁骥  陈焱  王长庭 《草业学报》2017,26(1):43-53

为了解蚂蚁在高寒草甸生态系统中的功能和作用,评估和认识高寒草甸生态系统的健康状况和稳定性,利用Biolog-ECO生态板法对蚁丘干扰后高寒草甸土壤理化性质以及土壤微生物功能多样性进行研究分析,结果表明,1)蚁丘扰动后0~10 cm土层土壤有机质、全氮、速效氮、速效磷、速效钾含量均显著高于蚁丘10~20 cm土层(P<0.05),而蚁丘扰动与土层深度的交互作用对理化性质均无显著影响(P>0.05);2)蚁丘干扰后高寒草甸土壤微生物多样性指数(Shannon-Weiner指数、Pielou指数、McIntosh指数和底物碳源利用数)有所增加;3)主成分分析表明蚁丘干扰对土壤微生物功能多样性产生了影响,改变了微生物代谢功能特征,土壤微生物利用的主要碳源是碳水化合物、氨基酸类和羧酸类;4)冗余分析表明土壤养分影响土壤微生物碳源代谢特征和功能。因此,由于蚂蚁的挖掘活动、有机质的累积等改变了蚁丘土壤微环境,进而改变了土壤微生物的碳源利用类型和代谢功能。  相似文献   

抗重金属植物根际细菌的植物促生长特征以及它们对黑芥种子萌发的影响     

Brenda ROMÁN-PONCE  Diana Miryel REZA-VÁZQUEZ  Sonia GUTIÉRREZ-PAREDES  María de Jes&#;s DE HARO-CRUZ  Jessica MALDONADO-HERNÁNDEZ  Yanely BAHENA-OSORIO  Paulina ESTRADA-DE LOS SANTOS  En Tao WANG  María Soledad VÁSQUEZ-MURRIETA 《土壤圈》2017,27(3):511-526

Phytoremediation is an emerging technology that uses plants and their associated microbes to clean up pollutants from the soil, water, and air. In order to select the plant growth-promoting rhizobacteria(PGPR) for phytoremediation of heavy metal contamination, 60 bacterial strains were isolated from the rhizosphere of two endemic plants, Prosopis laevigata and Spharealcea angustifolia, in a heavy metal-contaminated zone in Mexico. These rhizobacterial strains were characterized for the growth at different pH and salinity, extracellular enzyme production, solubilization of phosphate, heavy metal resistance, and plant growth-promoting(PGP) traits, including production of siderophores and indol-3-acetic acid(IAA). Overall, the obtained rhizobacteria presented multiple PGP traits. These rhizobacteria were also resistant to high levels of heavy metals(including As as a metalloid)(up to 480 mmol L(-1)As(V), 24 mmol L(-1)Pb(Ⅱ), 21 mmol L(-1)Cu(Ⅱ), and 4.5 mmol L(-1)Zn(Ⅱ)). Seven rhizobacterial strains with the best PGP traits were identified as members of Alcaligenes, Bacillus, Curtobacterium, and Microbacterium, and were selected for further bioassay.The inoculation of Brassica nigra seeds with Microbacterium sp. CE3R2, Microbacterium sp. NE1R5, Curtobacterium sp. NM1R1,and Microbacterium sp. NM3E9 facilitated the root development; they significantly improved the B. nigra seed germination and root growth in the presence of heavy metals such as 2.2 mmol L(-1)Zn(Ⅱ). The rhizobacterial strains isolated in the present study had the potential to be used as efficient bioinoculants in phytorremediation of soils contaminated with multiple heavy metals.  相似文献   

有机物-金属相互作用对重金属负载土柱中粘土矿物吸附剂再生的影响   总被引：1，自引：1，他引：0  

Yasser REFAEY  Boris JANSEN  Pim DE VOOGT  John R. PARSONS  Abdel-Hamid EL-SHATER  Abdel-Aziz EL-HADDAD  Karsten KALBITZ 《土壤圈》2017,27(3):579-587

Natural clay minerals can play an important role in crude remediation of wastewater polluted with the heavy metals (HMs) Cu,Zn and Ni.The presence and timing of addition of natural dissolved organic matter (DOM) have a significant effect on the HM removal by clay mineral sorbents.However,the influence of the presence of DOM on the remediation of the used clay mineral sorbents once saturated with HMs is largely unknown.To resolve this,clay mineral-rich soil column of varying composition,loaded (i) with Cu,Zn and Ni only,(ii) first with DOM followed by Cu,Zn and Ni,or (iii) with DOM,Cu,Zn and Ni simultaneously,was used in a set of desorption experiments.The soil columns were leached with 0.001 mol L-1 CaCl2 dissolved in water as control eluent and 0.001 mol L-1 CaCl2 dissolved in DOM as treatment eluent.During the preceding loading phase of the sorbent,the timing of DOM addition (sequential or concurrent with HMs) was found to have a significant influence on the subsequent removal of the HMs.In particular when the column was loaded with DOM and HMs simultaneously,largely irreversible co-precipitation took place.Our results indicate that the regeneration potential of clay mineral sorbents in wastewater treatment will be significantly reduced when the treated water is rich in DOM.In contrast,in manured agricultural fields (where HMs enter together with DOM),HM mobility will be lower than expected from interaction dynamics of HMs and clay minerals.  相似文献   

Comments on increasing number and abundance of non‐indigenous aquatic macrophyte species in Germany     

A HUSSNER  K VAN DE WEYER  E M GROSS  S HILT 《Weed Research》2010,50(6):519-526

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