highly significantP = 0.001
The difference in allele count for Paozhugu between 2014 and 1980 was highly significant ( P = 0.001). 6 paris of landraces (Laogenghongjiao, Lengshuigu, Jiuyuenuo, Xiaowuzui, Dibaigu, Bendidanuo), the number of alleles was significantly higher in the 2014 populations than in the 1980 populations. 13 pairs of landraces under on-farm conservation had higher Ne than those under ex-situ conservation, accounting for 54 % of the landraces.