Cock Spermatozoa Serve as the Gene Vector for Generation of ransgenic Chicken (Gallus gallus)

  • Yang, C.C. (Department of Animal Science, National Taiwan University) ;
  • Chang, H.S. (National Health Research Institutes) ;
  • Lin, C.J. (Department of Animal Science, National Taiwan University) ;
  • Hsu, C.C. (Department of Animal Science, National Taiwan University) ;
  • Cheung, J.I. (Chung Tai Institute of Health Sciences and Technology) ;
  • Hwu, L. (GeneShuttle Biopharmaceutical, Inc.) ;
  • Cheng, W.T.K. (Department of Animal Science, National Taiwan University)
  • Received : 2003.03.14
  • Accepted : 2004.01.26
  • Published : 2004.07.01


To evaluate the feasibility of using sperm-mediated gene transfer (SMGT) for carrying foreign gene into chicken oocyte, a reporter gene, CX-EGFP, was used in this study. The reporter gene was first mixed with liposome or liposome-like compound and the mixtures were further combined with ejaculated cock spermatozoa. The spermatozoa treated with liposome and CX-EGFP mixture was subsequently coincubated with DNaseI to remove the extra DNA which insured the authenticity of positive signals. The treated sperms were then subjected to transgene (reporter gene) existence analysis and artificial insemination of laying hens. Obtained results indicated that the spermatozoa were able to take-in the foreign DNA; which was confirmed by polymerase chain reaction and Southern blot analysis. In the following experiment, fresh ejaculated sperms were mixed with CX-EGFP-liposome or CX-EGFP-liposome-like complex then used for artificial insemination of each of six laying hens. Eggs laid between day-3 and day-7 post insemination were collected. Newly hatched chicks, two out of 53 from CX-EGFP/liposome treated group and two out of 21 from CXEGFP/liposome-like treated group, were proven to be transgenic. This study suggests that SMGT is a powerful method for generating transgenic chickens.


Transgenic Chicken;Sperm-mediated;Gene Transfer


Supported by : Council of Agriculture


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