Borambil Merino's  are traditionally based on Roseville Park and Nerstane bloodlines, and have been complemented by the strategic introduction of genetics from Wanganella, White River and Yarrawonga merino studs. 

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Borambil Poll Merinos are based on Moorundie and Poll Boonooke bloodlines, and have been supported with the introduction of Coddington Poll, Roseville Park Poll and East Mundulla genetics. 

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Borambil Merino sire selection focuses on proven bloodlines and complementary types, confirmation and objective data.

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