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Kessler, Evelyne C; Bruckmaier, Rupert M; Gross, Josef J. (2020). Milk urea nitrogen concentration is higher in Brown Swiss than in Holstein dairy cows despite identical feeding. Journal of animal physiology and animal nutrition, 104(6), pp. 1671-1677. Blackwell Science 10.1111/jpn.13408
Kessler, Evelyne C; Bruckmaier, Rupert M; Gross, Josef J (2020). Colostrum composition and immunoglobulin G content in dairy and dual-purpose cattle breeds. Journal of animal science, 98(8) Oxford University Press 10.1093/jas/skaa237