06:00Byd Amaeth25/04/2009BBC Radio Cymru Duration: 30 o funudau Sat 25th Apr 2009, 06:00 on BBC Radio CymruY diweddaraf o'r byd ffermio gyda Dei Tomos. The latest farming news with Dei Tomos.GenresFactualScience & NatureBrandByd Amaeth Source: BBC Online