台灣血統登錄種公豬之初當父日齡分布(初胎子代之一也取得血統登錄，世代間距459日以內)
Age to be Young Sire in Taiwan Pedigree Registration Pigs (Generation Interval less than 459 days) (PReg Birthdate: 2023/8/17)

Birth Year of progeny	Duroc														Landrace														Yorkshire
	Sire Head	Age to be Young Sire (260~459 Days, 20 days interval)										Less than 360 day old, %	Less than 400 day old, %	Less than 440 day old, %	Sire Head	Age to be Young Sire (260~459 Days, 20 days interval)										Less than 360 day old, %	Less than 400 day old, %	Less than 440 day old, %	Sire Head	Age to be Young Sire (260~459 Days, 20 days interval)										Less than 360 day old, %	Less than 400 day old, %	Less than 440 day old, %
2020~2023	125											10	38	78	79											9	24	80	45											9	27	82
2016~2019	146											9	34	77	121											11	41	81	55											18	44	76
2012~2015	202											12	39	79	143											15	45	87	74											20	47	82
2008~2011	268											14	47	87	183											16	51	87	90											18	52	87
2004~2007	248											24	56	88	205											18	46	89	77											26	64	90
2000~2003	227											14	46	82	202											17	54	87	65											17	51	82
1996~1999	253											9	41	86	258											15	49	87	131											11	48	82
1992~1995	317											15	47	85	373											13	47	87	217											17	40	76
1988~1991	280											11	49	84	330											13	44	80	177											10	37	80