Xiangxi Tujia and Miao Autonomous Prefecture is located in western Hunan province with abundant pastures,suitable for husbandry.However,parasitic diseases become an obstacle for goat industry development.In the resear...Xiangxi Tujia and Miao Autonomous Prefecture is located in western Hunan province with abundant pastures,suitable for husbandry.However,parasitic diseases become an obstacle for goat industry development.In the research,based on parasite damages,epidemic variety and characters,some prevention measures were proposed,as follows:improving goat raising and management,rotation grazing,reinforcement of disinfection and quarantine,and regular parasite expelling,providing references for goat farming in Xiangxi.展开更多
文摘Xiangxi Tujia and Miao Autonomous Prefecture is located in western Hunan province with abundant pastures,suitable for husbandry.However,parasitic diseases become an obstacle for goat industry development.In the research,based on parasite damages,epidemic variety and characters,some prevention measures were proposed,as follows:improving goat raising and management,rotation grazing,reinforcement of disinfection and quarantine,and regular parasite expelling,providing references for goat farming in Xiangxi.
文摘为了评估物种栖息地适宜性,提出生物多样性保护和栖息地管理策略,研究将湘西土家族苗族自治州作为研究区域,结合2021年该地区国家一级重点保护野生动物中华秋沙鸭Mergus squamatus的实地观测记录,利用MaxEnt模型对该物种的栖息地适宜性进行了评估,并进一步通过叠加分析,展示了该物种在实际保护过程中存在的空间空缺,以此提出了未来在该地区保护中华秋沙鸭的建议。结果显示,中华秋沙鸭的平均AUC(Area under curve)值为0.890±0.102,表明利用MaxEnt模型得到的预测结果具有较高的可信度。海拔、坡度和年降水量是影响该物种分布的主要因素。该物种主要分布于东南部等海拔较低,水源充沛的地方。湘西州境内中华秋沙鸭的高适宜区面积约为1948 km^(2),建议在该范围进行相应的保护试点建设,从而进一步加强对该地区中华秋沙鸭的保护。