Eisert R, Oftedal O, Barrell G K. Milk composition in the Weddell seal Leptonychotes weddellii: evidence for a functional role of milk carbohydrates in pinnipeds. Physiology and Biochemical Zoology 86: 159-175, 2013.
Barrell G K, Wellby M P, Ridgway M J, Asher G W, Archer J A. Pre-weaning growth of red deer calves is not determined by ability of hinds to produce milk. Animal Production Science 52: 507-515, 2012.
McNeill B A, Barrell G K, Wooding F B P, Prickett T C, Espiner E A. The trophoblast binucleate cell is the source of maternal circulating C-type natriuretic peptide during ovine pregnancy. Placenta 32: 645-650, 2011.
Prickett T C, Ryan J F, Wellby M P, Barrell G K, Yandle T G, Richards A M, Espiner E A. Effect of nutrition on plasma C-type natriuretic peptide forms in adult sheep: evidence for enhanced C-type natriuretic peptide degradation during caloric restriction. Metabolism Clinical and Experimental 59: 796-801, 2010.
Barrell G K, Archer J A, Wellby M, Ridgway M J. & Evans M J. Bovine somatotrophin stimulates milk production in red deer hinds. Animal Production Science 49: 619-623, 2009.
McNeill B A, Barrell, G K, Wellby, M, Prickett, T C R, Yandle T G. & Espiner, E A. C-type natriuretic peptide forms in pregnancy: maternal plasma profiles during ovine gestation correlate with placental and fetal maturation. Endocrinology 150: 4777-4783, 2009.
Barrell G K. Immunological influences on reproductive neuroendocrinology. In: Juengel, J L, Murray, J F, Smith, M F. (eds). Reproduction in Domestic Ruminants VI, Nottingham University Press, Nottingham. 109-122, 2007.