Table 1.

Statistics based on the reads of the sequencing data

	Average reads	Lactation period	Non-lactation period
		reads	reads
total reads	16,584,470	15,089,573	18,079,366
raw reads	15,389,545	13,711,046	17,068,043
clean reads	13,966,513	11,964,909	15,968,116
known miRNA	12,387,809	10,231,155	14,544,463
conserved miRNA	83,064	76,098	90,030
novel miRNA	164,893	88,088	241,697