Table 1. Nucleotide sequence of PCR primers and PCR conditions.

Genes	Primer sequence (5'-3')	PCR conditions	Length (bp)
NMB	Forward CATGACCCTGCGGGCTAGG	94°C 5min, (94°C 30s, 58°C 30s, 72°C 30 s) 40 cycles, 72°C 7min	567
	Revers GAAGCAAGACATACAGCAGGGACG
NMBR	Forward ATGCCCCCCAAGTCTCTTTC	94°C 5min, (94°C 30s, 55°C 30s, 72°C 30 s) 40 cycles, 72°C 7 min	1173
	Revers TCACAGTGCCATTTCCTGTTTC