Acta Veterinaria et Zootechnica Sinica ›› 2021, Vol. 52 ›› Issue (1): 107-115.doi: 10.11843/j.issn.0366-6964.2021.011

• ANIMAL BIOTECHNOLOGY AND REPRODUCTION • Previous Articles     Next Articles

Establishment of Assay for Detecting the Ratio of X and Y Sperm Separation in Gender Controlled Dairy Goat

HE Qifu1,2,3, WANG Yufei1,2,3, ZHANG Kang1,2,3, KANG Jian1,2,3, ZHANG Yong1,2,3*, QUAN Fusheng1,2,3*   

  1. 1. College of Veterinary Medicine, Northwest A&F University, Yangling 712100, China;
    2. Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling 712100, China;
    3. Shaanxi Animal Embryo Engineering Technology Research Center, Yangling 712100, China
  • Received:2020-06-15 Online:2021-01-23 Published:2021-01-19

Abstract: The aim of the study was to establish a dual TaqMan Real-time PCR assay that could quantitatively calculate the number of X and Y sperm in dairy goat semen, detect the number and ratio of separated dairy goat X and Y sperm and provide technical support for development and application of gender control technology. The dual real-time PCR assay was established through designing primers targeted to the specific gene F9 and ZFY fragments in the X and Y sperm, a standard curve was established, and TaqMan real-time PCR reaction conditions and system were optimized. The sensitivity and reliability of the method were verified by serial dilution of positive standards and determination of 60 gender controlled semen (3 repetitions) of known purity. The results showed that the dual real-time PCR assay had good specificity and repeatability, and the sensitivities of X and Y sperm detection were 47 and 51 copies·μL-1, respectively. The assay was used to calculate the numbers and ratios of X and Y sperm of dairy goat gender controlled semen, and the results were not significantly different from the purity of the X and Y sperm provided by the sales company (P>0.05), which indicated that this assay was reliable. The dual real-time PCR assay for calculating the number of X and Y sperm of dairy goats established in this study has good specificity and reproducibility, high sensitivity and reliable results, which provides a fast and reliable assay for calculating the number and ratio of X and Y sperm after semen separation in dairy goat semen.

Key words: X and Y sperm separation, real-time PCR, gender control, dairy goat

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