Journal of Animal Reproduction and Biotechnology

Table 3

Age at first delivery, date of artificial insemination after delivery, non-pregnant days, with or without ‘the farmers using estrus observation aids’

‘the farmers using estrus observation aids’	Age at first delivery(month)^*	Date of artificial insemination after delivery^**	Non-pregnant days^***

Without (n=251)	30.62±20.49	112.26±108.21	196.30±137.82
With (n=79)	28.66±6.65	126.12±107.78	194.59±119.75

^*Values with different superscripts are not differ (P>0.05).

^*초산 분만 월령 : 번식우의 분만일 – 번식우의 생년월일

^**분만후 인공수정일수 : 전분만일 – 분만후 처음 인공수정일

^***공태일수 : 조사일 현재(2016.9.15) 공태일수