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退牧还草政策对我国牧民生活的影响 总被引:2,自引:0,他引:2
为了对退牧还草政策的实施效果进行客观的总结和评估,提供我国退牧还草政策实施和改进的科学依据,通过问卷和访谈等社会科学研究方法,对内蒙古、宁夏、青海、新疆和新疆生产建设兵团的331个牧户家庭进行了调查研究,并对退牧还草政策对牧民生产生活的影响和草原生态变化进行了分析研究。调查研究结果表明,退牧还草政策的实施有效地改善了草原生态环境,促进了牧民生产方式和生产结构的转变,改善了牧民的收入结构,使牧民生活水平有了一定提高。 相似文献
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对2010年国内外蜂王浆的研究和专利公开情况进行了汇总,从地域和研究领域方面进行了统计和比较,就蜂王浆的质量评估、分子生物学研究、生理药理功能和产业发展等方面的研究成果进行了归类,对2010年专利公开的情况进行了介绍,并对蜂王浆研究开发的趋势和方向进行了总结。 相似文献
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习总书记春节前夕,去内蒙古慰问,考察了锡林郭勒盟、阿尔山和蒙草抗旱研发中心.考察期间对各地所见给予肯定并发表了重要讲话.习总书记的讲话不仅体现了对内蒙古人民的关怀,也表达了对全国各地农村和牧区的关怀. 相似文献
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本文采用显微注射技术制作转基因鼠和转基因猪并对共进行比较,阐明了用显微注射方法制作两种转基因动物的技术原理和实验方法.对两者相似点进行了归纳和总结,同时也对两种转基因动物制作过程中的不同之处进行了比较和分析.根据两种不同的实验动物,描述了它们各自不同的实验特点,技术方法和实验要求.本文同时也在理论上和实践中对转基因动物的制作进行了探索. 相似文献
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Laluha P Grest P Eichenberger S Reusch CE Gerber B 《Schweizer Archiv für Tierheilkunde》2006,148(6):303-307
A five-year-old, neutered male, Bernese Mountain Dog was referred because of a two-week history of hematuria and a one-week history of polydipsia and polyuria. Palpation of the dorsomedial mesogastrium revealed a mass on the left side, which was seen via radiography and ultrasonography to be attached to the left kidney. The left kidney and the attached mass were excised surgically, and the dog had an uneventful recovery. Histological examination of the mass revealed a dense proliferation of non-polymorphic spindle cells, which stained positive for smooth muscle actin via immunohistochemistry. Leiomyoma of the kidney was diagnosed. Postoperatively, there was mild azotaemia, which did not affect the general condition of the dog and was still present 15 months after surgery. Leiomyoma of the kidney is a benign tumor, and hematuria may be the only clinical sign. 相似文献
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M FLANAGAN 《Australian veterinary journal》1992,69(5):112-113
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An 18‐year‐old stallion was presented for castration because of insidious, bilateral scrotal enlargement of one year's duration. The left testis was firm, while the right was soft and lobulated; both were larger than normal. Palpation of the scrotum and its contents did not cause the horse to show signs of discomfort. Ultrasonography of scrotal contents revealed abnormal, heterogeneous tissue with ill defined regions of hyper‐ and hypoechogenity throughout both testes. Several hours after admission the horse developed severe signs of colic. On the basis of anamnesis, clinical findings, and results of ultrasonography and transrectal palpation bilateral testicular neoplasia and incarcerated inguinal hernia were tentatively diagnosed. Because the horse's owner did not consent to surgical treatment, the stallion was subjected to euthanasia. Histological and immunohistochemical examination of the testicular tissue collected post mortem revealed a seminoma in the left testis and a leiomyoma in the right testis. The post mortem examination also revealed incarceration of the small intestine in addition to the testicular tumours. To our knowledge, this is the first report of the simultaneous presence of bilateral, yet different testicular tumour types in a stallion. 相似文献
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Brennan SF Connery N Tobin E Mooney CT Jones BR 《The Journal of small animal practice》2004,45(6):304-306
A six-year-old, female Tibetan terrier was referred for investigation of a non-healing wound on the left caudal thorax. A subcutaneous swelling had initially developed on the chest wall, followed by a draining tract from which seropurulent fluid drained for two months. There had been no response to antibiotic treatment. Following radiographic and ultrasonographic examinations, a bone sequestrum from a fractured rib or a foreign body was suspected. Surgical exploration of the wound identified a sinus tract and a wooden foreign body (an ice-lolly stick) was located in subcutaneous tissues. Partial wound dehiscence of the surgical site occurred postoperatively, but healed after 10 days. One month later, fluid began to discharge from the area again. Further surgical exploration confirmed a gastrocutaneous fistula. Dissection of the fistula and surgical closure of the stomach, body wall and skin led to resolution of all signs. 相似文献
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