Core Viewpoint - The "Gui Can No. 8" silkworm variety has been selected as a leading agricultural variety for 2025 by the Ministry of Agriculture and Rural Affairs, highlighting its significance in the industry [1][4]. Group 1: Selection and Characteristics - The Ministry of Agriculture and Rural Affairs has selected 10 major leading technologies, 133 leading varieties, and 143 promoted technologies for 2025 [3]. - "Gui Can No. 8" is a robust, multi-resistant, and high-yield silkworm variety developed by the Guangxi Zhuang Autonomous Region Sericulture Technology Promotion Station since 2010, officially completed in 2018 [5][6]. - This variety shows a 1000-fold improvement in resistance to blood type septicemia compared to conventional varieties and a 5%-10% increase in single leaf cocoon yield [6]. Group 2: Approval and Promotion - "Gui Can No. 8" was approved at the Guangxi level in 2020 and received national approval from the National Animal Genetic Resources Committee in 2024 [7]. - The variety has been included in the Guangxi agricultural leading varieties for three consecutive years from 2023 to 2025 and is listed in the key promotion agricultural achievements catalog by the Guangxi Science and Technology Department [8]. Group 3: Impact and Adoption - Over 600 million leaves of "Gui Can No. 8" have been promoted, resulting in a total cocoon production exceeding 200,000 tons and silkworm farmers' sales revenue surpassing 12 billion yuan [9]. - The variety has been adopted in domestic silkworm regions such as Guangdong, Hainan, and Sichuan, as well as internationally in Vietnam [10].