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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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8月16日，游客在唐山市开平区洼里镇德汇无花果种植基地的大棚里采摘无花果。闫佳萌摄8月16日，唐山市开平区洼里镇德汇无花果种植基地的大棚里，甜香如雾，沁人心脾。
B | 紫红色的“波姬红”沉甸甸地垂在枝头，随手掰开一颗，蜜色果肉渗出晶莹汁液，入口即化，甜得纯粹而浓烈。然而，这份甜蜜并非一直这般从容。就在几年前，无花果鲜果还只能困在大棚里——常温下两三天便软烂变质，若逢阴雨，腐烂更快。许多种植户守着满树好果，却卖不远、存不住。
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Cattle Photo: VCG
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
。转机，始于一场静悄悄的“破圈”之举。
D | 记者见到基地负责人方辉时，她正在果林深处修剪枝叶。她拨开叶子，露出藏在叶腋下的果实。
E | “一片叶子下边一颗果，每根新枝条能结二十八颗。”她边走边介绍，这片基地种了波姬红、芭劳奈、紫色波尔多等多个品种，采摘期从8月一直持续到11月，眼下正是最热闹的时节。抬眼望去，每棵果树下都覆盖着厚厚的腐熟粪肥。“我们从来不用除草剂，全是手工拔草，虽然费劲，但果子吃着放心。”方辉蹲下身子，捏起一撮黑褐色的有机肥，“我们从养殖户那儿收羊粪，发酵腐熟后上地，土壤好了，果才甜。”有了好果子，销路便成了第一道要闯的关。鲜果的“娇气”曾让人望而却步，但方辉却把目光投向了更近的人——游客。说话间，一群提着塑料篮的游客涌进大棚。来自唐山市路南区的李芳带着女儿专程来采摘无花果。“去年吃过他家的果，孩子一直惦记着。”她一边选果一边教女儿，“颜色深紫的最甜。”基地采摘价每公斤60元，仍挡不住游客热情，周末每天要接待上百人。除了线下，方辉还开直播、建微信群，线上粉丝已过万，订单远销广东、福建、黑龙江等地。
F | 鲜果卖得火热，但总有旺季过剩或运输不便的时候。如何让这份甜蜜不再受制于时间？方辉的目光投向了深加工。
G | 在加工车间，工人们正将清洗干净的无花果送入低温烘干设备，制作成果干。方辉指着一排设备说：“以前我们用土办法烘干，温度靠手感，味道碰运气。
H | 现在跟工程大学合作，制定了标准化流程，温度、时间都精准控制。”展示架上，无花果干、八宝饭、点心整齐码放，撕开一包果干，韧而不硬，甜而不腻。从卖鲜果到卖加工品，无花果的“破圈”之路，又向前迈出了一大步。据了解，近年来，开平区大力发展高效生态现代农业，洼里镇因地制宜，将无花果、草莓、核桃等种植采摘串珠成链，打造城市“果篮子”，更融合乡村旅游，带动周边农户增收致富。最多时，80多名村民同时在基地务工，拔草、采摘、加工，家门口的就业让日子有了稳稳的甜头。（日报记者 李保健）。
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