A new bovine genetic testing chip, named "Breeding Chip 2.0," has been officially launched. Developed by Saikexing, a subsidiary of Youran Animal Husbandry, under the leadership of the National Center of Technology Innovation for Dairy Industry, this innovation enables precise detection of key traits such as high milk yield, high fertility, disease resistance, and longevity in dairy cows, marking a significant new breakthrough in China's dairy cattle breeding technology.
As a comprehensive technological upgrade of the independently patented "Breeding Chip 1.0," the new-generation "Breeding Chip 2.0" delivers enhancements in marker density, compatibility, and genomic trait prediction algorithms. In terms of marker density, the chip covers approximately 50,000 genome-wide loci, with a strategic focus on integrating key functional markers associated with milk production, reproduction, disease resistance, and extended productive life, thereby significantly improving the balance of genomic detection.
Regarding compatibility, "Breeding Chip 2.0" is designed to be compatible with leading international chips, facilitating the interoperability and reuse of historical breeding data. This establishes a standardized breeding data framework that is rooted in local needs while integrating with global standards. Furthermore, the chip achieves a sample detection success rate of 99.65% and a repeat sample genotyping consistency rate as high as 99.91%.
In its genomic trait prediction algorithms, "Breeding Chip 2.0" advances the breeding evaluation process from qualitative screening to more precise quantitative assessment. By leveraging the company's extensive dairy cattle phenotype database and genome resequencing data, the optimized proprietary algorithm can output precise breeding value scores for key traits, bringing the accuracy of germplasm screening to an internationally advanced level.
This new chip enables more accurate early genomic selection in calves, dramatically shortening the generational interval in bull selection and reducing the cost of raising inefficient replacement heifers. Compared to imported high-density chips, "Breeding Chip 2.0" offers a lower per-sample testing cost, delivering superior input-output efficiency and making it highly suitable for large-scale dairy farming scenarios within China.
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