Lambs from Columbia (C), New Zealand Dorset (D) and Suffolk (S) sires and born to either whiteface (WF) ewes or blackface (BF) ewes containing at least half Hampshire genes 2 £ S l to produce carcasses averaging 29 kg. S-sired lambs were the lowest and D s 'f e d Z b s were S r. highest for all measures of carcass fatness. Lambs * £ » IiF terns were likewise leaner than lambs from WF dams for all fatness measures. These genetic paternal and maternal effects on carcass fatness were reflected in significant differences weight of trimmed cuts produced by carcasses at the same weight.

H. H Meyer, J. M Thompson, J. R Busboom, H. Sakul

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume 19. Selection and quantitative genetics; growth; reproduction; lactation; fish; fiber; meat., , 454–457, 1994
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