美丽天山"马产业"呼之欲出——新疆维吾尔自治区畜牧厅厅长胡拜都拉·哈赛因畅谈马业经济发展

新疆维吾尔自治区是我国畜牧业生产大区,自古以来就以盛产良马而闻名于世.2008年末,新疆马匹存栏量达94.3万匹,居全国前列.养马在新疆有两千多年的历史,马既是生产资料,又是生活资料,是新疆畜牧业经济的重要组成部分,曾为新疆的农牧业生产、交通运输、马产品和军事国防作出重要贡献.虽然近年来新疆马业存在生产水平较低、投入不足、人才匮乏、马产业开发利用深度不够等问题,但这也是后发潜力之所在.     

The Impact of Horse Age,Sex, and Number of Riders on Horse Performance in British Eventing Horse Trials

Limited research has been undertaken to determine the impact of horse age, sex, and number of riders on horse performance in British Eventing (BE) horse trials. Improved understanding of this can aid professionals in planning a competition horse’s career. To investigate the impact of age, sex, and number of riders on the peak performance of horses at each of the main levels of BE competitions. The best score from each horse competing in BE horse trials in the years 2008–2018 was recorded, and principal component and hierarchical cluster analysis was performed. Basic data analysis was used to identify variables associated with particular better-performing clusters of horses. The interplay of the combinatory variables was then used to map out the trends in career trajectory for horses competing at each level of competition in the best-performing and worst-performing clusters. The peak performance of mares was worse than geldings and stallions at all levels. At Novice to Advanced, stallions did not perform as consistently with multiple riders as geldings. The age at which the best-performing groups peaked was similar for mares and geldings in all classes, although stallions peaked at an older age than mares and geldings at Novice and Intermediate level. All horses were a minimum of 4-years-old at the time of competition, as per BE rules.     

贵州黑马羊的选育

试验采取在农家组建核心群、基础群的开放式选育路线,制订初步淘汰标准、综合选择指数,指导整群淘汰、选种选配。结果发现,选育后核心群周岁公母羊体重分别为29.77 kg±5.51 kg、25.18 kg±5.67 kg,成年公母羊体重分别为40.08kg±7.73 kg3、4.90 kg±6.56 kg;选育后基础群周岁公母羊体重分别为26.59 kg±3.68 kg、24.09 kg±4.60 kg,成年公母羊体重分别为35.33 kg±4.09 kg3、2.16 kg±6.83 kg;产羔率达152.33%。经t检验,选育后核心群周岁公母羊、基础群周岁公母羊、成年公母羊平均体重极显著高于选育前的平均体重(P0.01)。无角对有角是显性,山羊间性与无角存在连锁关系。