Do breed and season affect β-carotene and the fatty acid composition of muscle phospholipid in beef?

Do breed and season affect β-carotene and the fatty acid composition of muscle phospholipid in beef?
Z.A. Kruk, A.E.O. Malau-Aduli, A.M. Thomson, B.D. Siebert, W.S. Pitchford and C.D.K. Bottema