中国美利奴-超细毛羊品系培育

进入21世纪,国家对细毛羊育种的总体规划有了新的要求,在国家863项目、科技攻关项目和科技支撑项目的大力支持下,新疆农垦科学院畜牧兽医所的科技人员用10年的时间培育出了中国美利奴一超细毛羊品系.目前超细品系群达到5.3万只,其中核心群基础母羊6500只,超细毛羊核心群体平均细度16.77μm,最细羊只12.6μm.     

中国美利奴羊“U”系中毛型与细毛型生产性能和羊毛品质分析

1998年利用绵羊胚胎移植技术获得了 10 3只羊毛细度为 18.4 1(15.58～ 2 0 .79) μm、被毛毛丛结构良好、全身毛长均匀度好、净毛率公羊 (6 9.3± 5.6 5) %、母羊 (70 .53± 7.4 7) %、羊毛色泽均为白色、羊毛弯曲整齐、被毛非常柔软、羊毛综合品质高的细型细毛羊 ,为我国细毛羊的发展提供了优良的遗传基因。1992年 ,新疆农垦科学院畜牧兽医所将冷冻胚胎移植给中国美利奴 (新疆军垦型 )母羊 ,产羔83只 ,经培育后周岁测定羊毛细度 2 2 μm左右 ,由农业部组织专家鉴定评审 ,正式命名为中国美利奴羊“U”系 ,1997年在羊毛市场对细毛羊需求增长的情况下 ,利用胚胎移植技术 ,获得了 10 3只平均细度为 18.4 μm的羊毛 ,手感非常柔软的细型细毛羊 ,我们对中毛型和细毛型的中国美利奴羊“U”系进行了生产性能测定和羊毛品质的室内分析     

德国美利奴羊在新疆的应用前景

本文推荐一个优良的肉毛兼用品种-德国美利奴羊，该品种具有美利奴羊的基本特征，且肉用性能特别好。德国美利奴成年公羊体重分别是中国美利奴和新疆细毛羊成年公羊体重的185.7%和200.0%；德国美利奴成年母羊体重分别是中国美利奴羊和新疆羊的187.5%和178.5%。德国美利奴与新疆当地羊的杂交后代，脂肪含量降低，羊毛品质到改善。德国美利奴与本地细毛羊杂交，在提高羊肉产量的同时，也不会导致细行羊退化。     

新疆农一垦科学院试验种羊场简介

新疆农垦科学院试验种羊场主要是以中国工程院刘守仁院士为首席专家的带领和指导下，利用胚胎移植等胚胎工程技术先后育成中国美利奴细型细毛羊、超细型细毛羊、肉用多胎细毛羊，并从澳大利亚、新西兰、美国、南非和比利时引进了超细型细毛羊、南非肉用美利奴、Beltex、美国高性能萨福克和无角道塞特等绵羊新品种。     

新疆农垦科学院种羊场

正新疆农垦科学院种羊场在中国工程院刘守仁院士为首席专家的带领和指导下,利用胚胎移植等生物技术先后育成中国美利奴细型细毛羊、超细型细毛羊、肉用多胎细毛羊和多胎萨福克羊新品系,并从澳大利亚、新西兰、美国、南非和比利时引进了超细型细毛羊、南非肉用美利奴、Beltex、美国高性能萨福克等绵羊新品种。为适应当前羊肉和     

新疆农垦科学院试验种羊场简介

<正>新疆农垦科学院试验种羊场主要是以中国工程院刘守仁院士为首席专家的带领和指导下,利用胚胎移植等胚胎工程技术先后育成中国美利奴细型细毛羊、超细型细毛羊、肉用多胎细毛羊,并从澳大利亚、新西兰、美国、南非和比利时引进了超细型细毛羊、南非肉用美利奴、Beltex、美国高性能萨福克和无角道塞特等绵羊新品     

新疆农垦科学院种羊场

正新疆农垦科学院种羊场在中国工程院刘守仁院士为首席专家的带领和指导下,利用胚胎移植等生物技术先后育成中国美利奴细型细毛羊、超细型细毛羊、肉用多胎细毛羊和多胎萨福克羊新品系,并从澳大利亚、新西兰、美国、南非和比利时引进了超细型细毛羊、南非肉用美利奴、Beltex、美国高性能萨福克等绵羊新品种。为适应当前羊肉和羊毛的市场供求变化,满足市场对优质肥羔肉的需求,增加广大农牧     

新疆农垦科学院试验种羊场简介

新疆农垦科学院试验种羊场主要是以中国工程院刘守仁院士为首席专家的带领和指导下，利用胚胎移植等胚胎工程技术先后育成中国美利奴细型细毛羊、超细型细毛羊、肉用多胎细毛羊，     

新疆农垦科学院试验种羊场简介

新疆农垦科学院试验种羊场主要是以中国工程院刘守仁院士为首席专家的带领和指导下，利用胚胎移植等胚胎工程技术先后育成中国美利奴细型细毛羊、超细型细毛羊、肉用多胎细毛羊，并从澳大利亚、新西兰、美国、南非和比利时引进了超细型细毛羊、南非肉用美利奴、Beltex、美国高性能萨福克和无角道塞特等绵羊新品种。为适应当前羊毛和羊肉的市场供求变化，满足市场对优质肥羔肉的需求，     

新疆农垦科学院种羊场

<正>新疆农垦科学院种羊场在中国工程院刘守仁院士为首席专家的带领和指导下,利用胚胎移植等生物技术先后育成中国美利奴细型细毛羊、超细型细毛羊、肉用多胎细毛羊和多胎萨福克羊新品系,并从澳大利亚、新西兰、美国、南非和比利时引进了超细型细毛羊、南非肉用美利奴、Beltex、美国高性能萨福克等绵羊新品种。为适应当前羊肉和羊毛的市场供求变化,满足市场对优质肥羔肉的需求,增加广大农牧     

Knee injury and Osteoarthritis Outcome Score (KOOS) - validation of a Swedish version

The Knee injury and Osteoarthritis Outcome Score (KOOS) is a self-administered instrument measuring outcome after knee injury at impairment, disability, and handicap level in five subscales. Reliability, validity, and responsiveness of a Swedish version was assessed in 142 patients who underwent arthroscopy because of injury to the menisci, anterior cruciate ligament, or cartilage of the knee. The clinimetric properties were found to be good and comparable to the American version of the KOOS. Comparison to the Short Form-36 and the Lysholm knee scoring scale revealed expected correlations and construct validity. Item by item, symptoms and functional limitations were compared between diagnostic groups. High responsiveness was found three months after arthroscopic partial meniscectomy for all subscales but Activities of Daily Living.     

Endovascular management of carotid-cavernous fistulas

Objective To investigate endovascular treatment of traumatic direct carotid-cavernous fistulas （CCF） and their complications such as pseudoaneurysms. Methods： Over a five-year period, 22 patients with traumatic direct CCFs were treated endovascularly in our institution. Thirteen patients were treated once with the result of CCF occluded, 8 twice and 1 three times. Treatment modalities included balloon occlusion of the CCF, sacrifice of the ipsilateral internal carotid artery with detachable balloon, coll embolization of the cavernous sinus and secondary pseudoaneurysms, and covered-stem management of the pseudoaneurysms. Results All the direct CCFs were successfully managed endovascularly. Four patients developed a pseudoaneurysm after the occlusion of the CCF with an incidence of pseudoaneurysm formation of 18.2% （4/22）. A total number of 8 patients experienced permanent occlusion of the ICA with a rate of ICA occlusion reaching 36.4% （8/22）. Followed up through telephone consultation from 6 months to 5 years, all did well with no recurrence of CCF symptoms and signs. Conclusion Traumatic direct CCFs can be successfully managed with endovascular means. The pseudoaneurysms secondary to the occlusion of the CCFs can be occluded with stent-assisted coiling and implantation of covered stents.     

The role of interventional radiology in trauma

Introduction Interventional Radiology has evolved into a specialty having enormous input into the care of the traumatized patient.In all hospitals,regardless of size,the Interventional Radiologist must consider their relationships with the trauma service in order to     

The acutely limping child

Acute limping may be the result of multiple pathologies in children. The differential diagnosis varies based on the age of the child. Irrespective of age, the initial imaging work-up includes AP and frog leg radiographs of the pelvis and ultrasound; MRI may sometimes be helpful. In children less than 3 years, infections and trauma are most frequent. MRI is the imaging modality of choice when osteomyelitis is clinically suspected. Between the ages of 3 and 10 years, transient synovitis of the hip and Legg-Calvé-Perthes disease are main considerations but infection, inflammation and focal bony lesions are also considered. In children over 10 years, slipped capital femoral epiphysis also is considered.     

Diagnóstico ecográfico del neumotórax

The ultrasonographic diagnosis of pneumothorax is based on the analysis of artifacts. It is possible to confirm or rule out pneumothorax by combining the following signs: lung sliding, the A and B lines, and the lung point. One fundamental advantage of lung ultrasonography is its easy access in any critical situation, especially in patients in the intensive care unit. For this reason, chest ultrasonography can be used as an alternative to plain-film X-rays and computed tomography in critical patients and in patients with normal plain films in whom pneumothorax is strongly suspected, as well as to evaluate the extent of the pneumothorax and monitor its evolution.     

Carbohydrate Supplementation during Exercise: Does It Help? How Much is Too Much?

KEY POINTS· Carbohydrate intake during exercise can delay the onset of fatigue and improve performance of prolonged exercise as well as exercise of shorter duration and greater intensity (e.g., continuous exercise lasting about 1h and intermittent high-intensity exercise), but the mechanisms by which performance is improved are different.