8Bercovitz A B, Czekala N M, Lasley B L. 1978, A new meth- od of sex determination in monomorphic birds[J]. The Journal of Zoo Animal Medicine, 9(4): 114-124.
9Bermudez-Humaran L G, Chavez-Zamarripa P, Guzman-Velasco A, et al. 2002, Loss of restriction site DdeI, used for avian molecular sexing, in Oreophasis derbianus [J]. Reproduction in Domestic Animals, 37(6): 321-323.
10Chang H, Cheng C, Gu D, et al. 2008, High-throughput avian molecular sexing by SYBR green-based Real-time PCR combined with melting curve analysis[J]. BMC Biotech- nology, 8: 12.