Bertie Mannion is a pedigree cattle breeder and sheep farmer based in Curraghboy, Athlone, Co. Roscommon. Bertie Mannion is well known in pedigree cattle breeding circles and also has a great interest in GAA, hunting and horseracing. Alan, Bertie, and David MannionHis pedigree Limousin herd is known as the Ballyline Limousin Herd, and it is set to host a production sale of 15 heifers on the weekend of Saturday, October 11. Included in the sale is a selection of in-calf heifers, maiden heifers, and weanling heifers. Related StoriesOutside of cattle farming, Bertie said he enjoys rough shooting with his German pointers and going to the races.