Arthroscopic treatment of meniscal cysts in the horse

Reasons for performing study: To describe the clinical symptoms, treatment, and outcome of meniscal cysts in horses. These structures have not been previously described in the literature as a potential cause of lameness in the horse. Hypothesis: Meniscal cysts are an uncommon condition of the femorotibial joint but can be a significant cause of lameness. Symptoms can be resolved by arthroscopic excision. Methods: Records of horses diagnosed with meniscal cysts and treated by cyst excision and meniscal debridement at 2 surgical practices were reviewed. Clinical outcome was determined by repeat veterinary examination and contact with owner. Results: Seven cases of meniscal cyst were treated with arthroscopic cyst excision and meniscal debridement. Five of 7 horses had lameness attributable to femorotibial joint pathology, while the remaining 2 horses had meniscal cysts found incidentally during diagnostic arthroscopy for the treatment of osteochondritis dissecans of the lateral trochlear ridge of the femur. Five of 6 horses with long‐term follow‐up were sound and a 7th horse was improved 11 months after surgery. Conclusions and potential relevance: Meniscal cysts, while uncommon, can be associated with progressive lameness in the horse. Surgical excision of the cysts results in resolution or improvement of symptoms, without evidence of recurrence on follow‐up examination.     

优化灌溉与施肥对冬小麦冠层结构的影响研究

试验研究优化灌溉与施肥对冬小麦冠层结构的影响结果表明,与限量灌溉处理相比,优化灌溉和传统灌溉处理小麦最上部3个节间明显伸长,导致株高增高10cm,旗叶叶面积减小7%,但倒2叶和倒3叶叶面积分别增加7%和20%;优化灌溉处理小麦旗叶茎叶夹角明显减小。与未施N肥处理相比,施用N肥有增大小麦株高、叶面积和茎叶夹角的趋势,且传统施N比优化施N更加明显。优化水N管理麦田各层次透光率与传统处理差异较小,但它们均显著低于限量灌溉和未施N处理。     

优化灌溉与施肥对冬小麦冠层结构的影响研究

盆栽试验研究连作对茄子苗期生长的影响结果表明 ,生长初期 4 5d内重茬茄苗株高、叶面积、主根长和总根长明显低于正茬 ,导致茄苗地上部、地下部鲜物质量分别比正茬减少 33 2 %和 30 2 % ,且重茬茄苗随苗龄的增加其根结线虫危害加重。对重茬土壤消毒虽消除线虫的危害 ,但未完全改善重茬茄苗生长状况 ,且播种后 7d重茬土壤茄子出苗率比正茬低 15 % ,表明茄子连作障碍是土传病虫害和化感物质共同作用的结果。通过水培收集的根系分泌物 ,随添加量的增加而对茄子胚根、胚芽生长的抑制作用增强 ,表明化感作用是茄子连作障碍的重要因子之一。     

Computed tomographic diagnosis: Traumatic lingual process fracture and surgical resection

A 9‐year‐old mare was presented with abnormal behaviour and head‐shaking when ridden. Pathology of the hyoid apparatus was suspected and computed tomographic (CT) examination of the head was suggested. Computed tomographic images revealed a fractured lingual process (LP) of the basihyoid bone. Surgical resection of the fractured LP was performed. The mare recovered uneventfully and symptoms improved 10 weeks post‐operatively.