Lecturer,Animal Science (Camden)

Faculty of Veterinary Science
J.L. Shute (C01)
University of Sydney NSW, Australia 2570
Ph: +61 2 903 67748
Fax: +61 2 9351 1693
Email:

1. Newman, R.E., Storlien, L.H., Bryden, W.L., Kirby, A.C. and Downing, J.A. (2003). Dietary n-3 and n-6 fatty acids alter avian pituitary sensitivity. Nutritional Neuroscience, 2, 343-350.
2. Howe, P.R.C., Downing, J.A., Grenyer, B., Grigonis-Deane, E. and Bryden, W. L. (2002) Tuna fishmeal as a source of docosahexaenoic acid for omega-3 enrichedment of pork and chicken meat and eggs. Lipids, 37, 11, 1067-1076.
3. Newman, R.E., Bryden, W.L., Fleck, E., Ashes, J.R., Buttemer, W.A., Storlien, L.H and Downing, J.A. (2002). Dietary n-3 and n-6 series alter avian metabolism. 1. Metabolism and abdominal fat deposition. British Journal of Nutrition, 88, 19-28.
4. Newman, R.E., Bryden, W.L., Fleck, E., Ashes, Storlien, L.H and Downing, J.A. (2002). Dietary n-3 and n-6 fatty acids alter avian metabolism. 11. Molecular species composition of breast muscle phospholipids. British Journal of Nutrition, 88, 11-18.
5. Downing, J.A., Joss, J and Scaramuzzi, R.J. (1999) The effect of a direct arterial infusion of insulin and glucose on the ovarian secretion rates of androstenedione and oestradiol in ewes with an auto-transplanted ovary. Journal of Endocrinology, 163, 351-361.
6. J.A. Downing (1999) Reproduction in Broiler Breeders: Is further understanding of ovarian follicle development needed to improve efficiency? University of Sydney, Poultry Research Foundation, Occasional Bulletin No 5. University of Sydney. pp 12-16.
7. Blaney, B.J., Josey, B.J., McKenzie, M.J. and Downing, J.A. (1999) An assessment of the effect on beef cattle of grazing sorghum (Sorghum bicolor) infected with ergot (Claviceps africana). Australian Journal of Veterinary Science, 78, 124-133.
8. Scaramuzzi, R.J. and Downing, J.A. (1999) The effect of progesterone on the GnRH-induced secretion of oestradiol and androstenedione from the auto-transplanted ovary of the anoestrous ewe. Journal of Reproduction and Fertility, 116, 127-132.
9. Downing, J.A. and Scaramuzzi, R.J. (1997) The effect of the infusion of insulin during the luteal phase of the estrous cycle on the ovulation rate and on plasma concentrations of LH, FSH and glucose in ewes. Theriogenology, 47, 747-759.
10. Downing, J.A., Joss, J. and Scaramuzzi, R.J. (1997) Ovulation rate and the concentrations of LH, FSH, GH, prolactin and insulin in ewes infused with tryptophan, tyrosine or tyrosine and phenylalanine during the luteal phase of the oestrous cycle. Animal Reproduction Science, 45, 283-297.
11. Downing, J.A., Joss, J. and Scaramuzzi, R.J. (1997) Ovulation rate and the concentrations of LH, FSH, GH, prolactin and insulin in ewes infused with tryptophan, tyrosine or tyrosine plus phenylalanine during the luteal phase of the oestrous cycle. Animal Reproduction Science, 45, 283-297.