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N China's Inner Mongolia launches homegrown ‘Breeding No.2’ gene chip for quality dairy cattle breeding_我的网站
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North China's Inner Mongolia Autonomous Region has launched a genomic breeding tool for dairy cattle, also known as a gene chip, enabling precise screening for key traits such as high milk yield, high fertility, disease resistance and longevity, and marking a fresh breakthrough in China's dairy cattle breeding technology, the Inner Mongolia Daily reported on Saturday.
As an iteration of the previous generation dairy cattle breeding array, which holds proprietary intellectual property rights, the new-generation "Breeding No.2" breeding array was led by the National Center of Technology Innovation for Dairy and developed by Youran Dairy Saikexing, with upgrades in loci coverage, compatibility and gene-trait prediction algorithms.
The "Breeding No.2" breeding array covers about 50,000 loci across the dairy cattle genome, with a focus on functional loci tied to milk production, reproduction, disease resistance and length of productive life. It has achieved a sample call rate of 99.65 percent and a genotyping concordance rate of 99.91 percent for duplicate samples, and is compatible with mainstream international chips, allowing historical breeding data to be shared and reused.
Drawing on a phenotype database and genome resequencing data to optimize a proprietary algorithm, advancing breeding evaluation from qualitative screening to quantitative assessment, bringing the accuracy of breeding stock selection up to advanced international levels, according to the report.
The breeding array enables more precise genomic selection of calves at an early stage, substantially shortening the generation interval in breeding bull selection and cutting spending on raising low-performing replacement heifers. Compared with imported high-density chips, the "Breeding No.2" chip carries a lower per-sample testing cost and delivers stronger input-output returns, making it highly suited to large-scale dairy cattle breeding operations in China, the report said.
Global Times
。 今日消息，小米创办人雷军在社交平台上谈到了他对汽车行业的理解和看法。雷军表示，在小米进入电动汽车行业之前，我们对电动汽车进行了深度调研并获得了一些深刻见解。雷军指出，和油车相比，电动汽车制造门槛大幅降低，30000个零部件高度模块化，电池成本在过去十年下降了80%，未来至少还有50%的下降空间。因此，在雷军看来，电动汽车是一种以智能化、软件化和用户体验为核心的消费电子产品，汽车行业市场份额最终将会高度集中到顶级玩家手中。
B | 当电动汽车行业成熟时，全球前5大品牌将会占据80%以上的市场份额，所以小米成功的唯一方式就是努力成为电动汽车TOP5巨头之一，竞争将会非常残酷。资料显示，小米于2021年宣布进军电动汽车行业。雷军曾表示，虽然特斯拉比小米早10年进入电动汽车行业，但是小米仍然有很多机会。雷军曾公开表示，小米的机会在于自动驾驶，目标是2024年进入汽车自动驾驶行业第一阵营。目前小米已经在自动驾驶领域取得了一系列突破，小米自动驾驶技术已经基本上实现了一键召唤车辆、自动驶入匝道、主动变道超车、无保护掉头/右转/左转、自动绕行临停车辆/事故车辆/环岛、自主代客泊车等功能。其中，通过对泊车场景的重点打磨，小米自动驾驶团队宣布，将创新推出一体化的泊车智能解决方案，涵盖“预定车位”“自主代客泊车”“机械臂自动充电”等多项功能，未来还将打通其他停车场服务，在遵守国家相关法规前提下实现智能化与服务化的体验融合。另外，2024年是此前小米汽车计划的首车量产时间点，因此，小米自动驾驶或许在交付时就能够初步应用在量产车上。届时小米汽车的自动驾驶能力，将是小米汽车能否抢占市场的重要因素之一。
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