Search

我国是世界上雉科(Phasianidae)鸟类最多的国家,动物园在珍稀雉类迁地保护中发挥着重要作用。北京动物园通过多项措施来提高珍稀雉类繁育工作的成效:建造生态型饲养笼舍,丰富生活环境; 提供自然多样食物,满足营养需求; 开展行为训练,降低应激反应; 采用亲鸟抚育方式,提高雉类迁地保护成功率。近年来,对血雉(Ithaginis cruentus berezowskii)、暗腹雪鸡(Tetraogallus himalayensis)、红腹锦鸡(Chrysolophus pictus)、白鹇(Lophura nycthemera)、白冠长尾雉(Syrmaticus reevesii)、红腹角雉(Tragopan temminckii)、蓝马鸡(Crossoptilon auritum)和石鸡(Alectoris chukar)等雉类开展了亲鸟抚育试验,在圈养雉类保护性繁育方面进行了有益探索,取得了较好的试验效果,开展亲鸟抚育与未来再引入相结合,是今后动物园珍稀雉类饲养的主要发展方向。

Copyright of Shandong Medical Journal is the property of Shandong Medical Health Newspapers and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Modern Medicine & Health is the property of Journal of Modern Medicine & Health and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Objective To investigate the feasibility of transplanting human osteosarcoma MG⁃63 tumor masses into rabbits tumorigenesis model. Methods A total of 24 New Zealand white rabbits were randomly divided into the VX2 group and the MG⁃63 group, with 12 rabbits in each group. VX2 tumor or human osteosarcoma MG⁃63 tumor were implanted into the bone marrow cavity of the right tibia of each rabbit in both groups. Color Doppler ultrasound was performed at 3, 4 and 5 weeks after modeling, and X⁃ray and CT examinations were performed at the end of the 4⁃week ultrasonography to observe the tumorigenic characteristics and tumorigenic rate of the rabbits in both groups. Alkaline phosphatase (AKP) levels were measured before and 4 weeks after modeling. At 3 and 4 weeks after modeling, 3 tumorous rabbits in each group were sacrificed by the air embolization method, and the remaining rabbits were sacrificed at 5 weeks after modeling for pathological examination. Results There were 10 and 11 rabbits surviving in the VX2 and MG⁃63 groups, respectively. The tumor formation rates were 60.0%, 90.0%, 100.0% in the VX2 group and 0, 45.5%, 63.6% in the MG⁃63 group at 1, 2, and 3 weeks after modeling, respectively. The lung metastasis rates were 66.7%, 66.7%, 100.0% in the VX2 group and 0, 33.3%, 40.0%intheMG⁃63groupat3,4,and5weeksaftermodeling,respectively.No abdominal organ metastasis was observed in all the examined rabbits. At 4 weeks after modeling, the serum AKP concentration in the VX2 group was significantly higher than that before modeling and the MG⁃63 group, the differences were statistically significant (P=0.002, <0.001). The results of radiographic and pathological ex⁃ amination showed that significant bone destruction occurred in the VX2 group and slight bone destruction occurred in the MG⁃63 group at 4 weeks after modeling. The rate of bone destruction and tumor bone formation in the VX2 group were higher than those in the MG⁃63 group, but the differences were not statistically significant (P=0.152, 0.072). Conclusions Compared with the rabbit VX2 tumor model, the tumor formation rate and lung metastasis rate of the MG⁃63 rabbit osteosarcoma model are lower, with poor stability. The ideal rabbit osteosarcoma animal model still needs to be further explored. [ABSTRACT FROM AUTHOR]

Copyright of Plateau Meteorology is the property of Plateau Meteorology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Brewing is the property of China Brewing Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Shipin Kexue/ Food Science is the property of Food Science Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

选择东方铃蟾作为保护教育的项目动物,因为它是众多两栖动物中蛙类的一种,有典型的外观特征,是生活在我国最北方地区的蛙类,在北京地区野外也能存活,其物种保护及生态学意义不容忽视。本文介绍了东方铃蟾的生物学特征,并指出人工饲养东方铃蟾所需养殖室环境温度为20～23 ℃,湿度36%～55%,全年温湿度相差不多,而养殖缸温度20～21 ℃,湿度70%～80%,不能超过27 ℃,全年恒定,每日照明保证8～14 h。成蛙日常饲养密度可达24只/m2,雌雄比例为1♂:3♀,而幼蛙可控制在40～60只/m2。繁殖出的东方铃蟾,经训练可用于保护教育活动,效果很好。今后,应该进一步加强对东方铃蟾的生物学特性及保护研究。