1. Samiullah, S., J. Roberts and S.B. Wu, 2017. Reference gene selection for the shell gland of laying hens in response to time-points of eggshell formation and nicarbazin. PLoS ONE, Vol. 12. 10.1371/journal.pone.0180432.
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2. Samiullah, S., J. Roberts and S.B. Wu, 2017. Downregulation of ALAS1 by nicarbazin treatment underlies the reduced synthesis of protoporphyrin IX in shell gland of laying hens. Scient. Rep., Vol. 7. 10.1038/s41598-017-06527-y.
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3. Khan, S., J. Roberts and S.B. Wu, 2017. Reference gene selection for gene expression study in shell gland and spleen of laying hens challenged with infectious bronchitis virus. Scient. Rep., Vol. 7. 10.1038/s41598-017-14693-2.
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4. Iqbal, Z., J. Roberts, R.A. Perez-Maldonado, F.G. Boroojeni, R.A. Swick and I. Ruhnke, 2017. Pasture, multi-enzymes, benzoic acid and essential oils positively influence performance, intestinal organ weight and egg quality in free-range laying hens. Br. Poult. Sci., (In Press). 10.1080/00071668.2017.1403566.
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5. Campbell, D.L.M., C. Lee, G.N. Hinch and J.R. Roberts, 2017. Egg production and egg quality in free-range laying hens housed at different outdoor stocking densities. Poult. Sci., 96: 3128-3137.
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6. Samiullah, S., J. Roberts and K. Chousalkar, 2016. Oviposition time, flock age and egg position in clutch in relation to brown eggshell color in laying hens. Poult. Sci., 95: 2052-2057.
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7. Samiullah, S., J. Roberts and K. Chousalkar, 2016. Infectious bronchitis virus and brown shell colour: Australian strains of infectious bronchitis virus affect brown eggshell colour in commercial laying hens differently. Avian Pathol., 45: 552-558.
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8. Samiullah, S., A.S. Omar, J. Roberts and K. Chousalkar, 2016. Effect of production system and flock age on eggshell and egg internal quality measurements. Poult. Sci., 96: 246-258.
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9. Samiullah, S., J.R. Roberts and K. Chousalkar, 2015. Eggshell color in brown-egg laying hens-a review. Poult. Sci., 94: 2566-2575.
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10. Ray, A., J.R. Roberts, R. Flavel and K.K. Chousalkar, 2015. Eggshell penetration by Salmonella Typhimurium in table eggs: Examination of underlying eggshell structures by micro-computed tomography and scanning electron microscopy. Food Res. Int., 78: 34-40.
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11. Samiullah, S. and J.R. Roberts, 2014. The eggshell cuticle of the laying hen. World's Poult. Sci. J., 70: 693-708.
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12. Samiullah, J.R. Roberts and K.K. Chousalkar, 2014. Effect of production system and flock age on egg quality and total bacterial load in commercial laying hens. J. Applied Poul. Res., 23: 59-70.
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13. Gole, V.C., K.K. Chousalkar, J.R. Roberts, M. Sexton, D. May, J. Tan and A. Kiermeier, 2014. Effect of egg washing and correlation between eggshell characteristics and egg penetration by various Salmonella Typhimurium strains. PLoS ONE, Vol. 9. 10.1371/journal.pone.0090987.
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14. Gole, V.C., J.R. Roberts, M. Sexton, D. May, A. Kiermeier and K.K. Chousalkar, 2014. Effect of egg washing and correlation between cuticle and egg penetration by various Salmonella strains. Int. J. Food Microbiol., 182: 18-25.
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15. Samiullah, K.K. Chousalkar, J.R. Roberts, M. Sexton, D. May and A. Kiermeier, 2013. Effects of egg shell quality and washing on Salmonella Infantis penetration. Int. J. Food Microbiol., 165: 77-83.
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16. Samiullah and J.R. Roberts, 2013. The location of protoporphyrin in the eggshell of brown-shelled eggs. Poult. Sci., 92: 2783-2788.
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17. Roberts, J.R., K. Chousalkar and Samiullah, 2013. Egg quality and age of laying hens: Implications for product safety. Anim. Prod. Sci., 53: 1291-1297.
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18. Gole, V.C., K.K. Chousalkar and J.R. Roberts, 2013. Survey of Enterobacteriaceae contamination of table eggs collected from layer flocks in Australia. Int. J. Food Microbiol., 164: 161-165.
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19. Gole, V.C., K.K. Chousalkar and J.R. Roberts, 2012. Prevalence of antibodies to Mycoplasma synoviae in laying hens and possible effects on egg shell quality. Prev. Vet. Med., 106: 75-78.
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20. Chousalkar, K.K. and J.R. Roberts, 2012. Recovery of Salmonella from eggshell wash, eggshell crush and egg internal contents of unwashed commercial shell eggs in Australia. Poult. Sci., 91: 1739-1741.
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21. Chousalkar, K.K., P. Flynn, M. Sutherland, J.R. Roberts and B.F. Cheetham, 2010. Recovery of Salmonella and Escherichia coli from commercial egg shells and effect of translucency on bacterial penetration in eggs. Int. J. Food Microbiol., 142: 207-213.
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22. Chousalkar, K.K., B.F. Cheetham and J.R. Roberts, 2010. Detection of infectious bronchitis virus strain N1/88 from the oviduct and feces of experimentally infected vaccinated and unvaccinated hens. Poult. Sci., 89: 1603-1608.
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23. Chousalkara, K.K., B.F. Cheethamb and J.R. Roberts, 2009. LNA probe-based real-time RT-PCR for the detection of infectious bronchitis virus from the oviduct of unvaccinated and vaccinated laying hens. J. Virol. Methods, 155: 67-71.
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24. Chousalkar, K.K., B.F. Cheetham and J.R. Roberts, 2009. Effects of infectious bronchitis virus vaccine on the oviduct of hens. Vaccine, 27: 1485-1489.
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25. Chousalkar, K.K. and J.R. Roberts, 2009. Effects of Australian strains of infectious bronchitis virus on internal and external quality of hen eggs. Anim. Prod. Sci., 49: 162-169.
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26. Gordge, L. and J.R. Roberts, 2008. Kidney function in the Spinifex hopping mouse, Notomys alexis. Comp. Biochem. Physiol. Part A: Mol. Integr. Physiol., 150: 90-101.
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27. Chousalkar, K.K. and J.R. Roberts, 2008. Ultrastructural changes in the oviduct of the laying hen during the laying cycle. Cell Tissue Res., 332: 349-358.
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28. Chousalkar, K.K., J.R. Roberts and R. Reece, 2007. Histopathology of two serotypes of infectious bronchitis virus in laying hens vaccinated in the rearing phase. Poult. Sci., 86: 59-62.
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29. Chousalkar, K.K., J.R. Roberts and R. Reece, 2007. Comparative histopathology of two serotypes of infectious bronchitis virus (T and N1/88) in laying hens and cockerels. Poult. Sci., 86: 50-58.
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30. Chousalkar, K.K. and J.R. Roberts, 2007. Ultrastructural study of infectious bronchitis virus infection in infundibulum and magnum of commercial laying hens. Vet. Microbiol., 122: 223-236.
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31. Roberts, J.R. and M. Choct, 2006. Effects of commercial enzyme preparations on egg and eggshell quality in laying hens. Br. Poult. Sci., 47: 501-510.
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32. Roberts, J.R., 2004. Factors affecting egg internal quality and egg shell quality in laying hens. J. Poult. Sci., 41: 161-177.
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33. Roberts, J.R., B.C. Ford and R.F. Wideman Jr., 1999. Blood flow to the avian kidney: The use of transit-time ultrasonic flow probes. J. Exp. Zool. Part A: Ecol. Genet. Physiol., 284: 15-22.
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34. Roberts, J.R., 1998. The effect of acute or chronic administration of prolactin on renal function in feral chickens. J. Comp. Physiol. B, 168: 25-31.
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35. McAllan, B.M., J.R. Roberts and T. O'Shea, 1998. Seasonal changes in glomerular filtration rate in Antechinus stuartii (Marsupialia: Dasyuridae). J. Comp. Physiol. B, 168: 41-49.
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36. Leary, A.M., J.R. Roberts and P.J. Sharp, 1998. The effect of infusion of hypertonic saline on glomerular filtration rate and arginine vasotocin, prolactin and aldosterone in the domestic chicken. J. Comp. Physiol. B, 168: 313-321.
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37. McAllan, B.M., T. O'Shea and J.R. Roberts, 1997. Seasonal changes in the reproductive anatomy of male Antechinus stuartii (Marsupialia: Dasyuridae). J. Morphol., 231: 261-275.
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38. McAllan, B.M., J.R. Roberts and T. O'Shea, 1997. Effects of testosterone and cortisol on the renal morphology of male Antechinus stuartii (Marsupialia). Gen. Comp. Endocrinol., 107: 439-449.
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39. Gorman, I., D. Balnave and J.R. Roberts, 1997. Effect of temperature and dietary sodium bicarbonate supplementation on the mineral excretion of broilers. Aust. J. Agric. Res., 48: 703-708.
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40. McAllan, B.M., J.R. Roberts and T. Oshea, 1996. Seasonal changes in the renal morphometry of Antechinus stuartii (Marsupialia: Dasyuridae). Aust. J. Zool., 44: 337-354.
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41. Brackpool, C.E., J.R. Roberts and D. Balnave, 1996. Blood electrolyte status over the daily laying cycle and the effect of saline drinking water on the availability of calcium in the blood for egg-shell formation in the laying hen. J. Anim. Physiol. Anim. Nutr., 75: 214-225.
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42. McAllan, B.M., J.R. Roberts and P.S. Barboza, 1995. The kidney structure of the common wombat (Vombatus ursinus) and the hairy-nosed wombat (Lasiorhinus latifrons). Aust. J. Zool., 43: 181-191.
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43. Roberts, J.R. and C.E. Brackpool, 1994. The ultrastructure of avian egg shells. Poult. Sci. Rev., 5: 245-272.
44. Afanador, G. and J.R. Roberts, 1994. Effect of nephropathogenic infectious bronchitis viruses on renal function in young male broiler chickens. Br. Poult. Sci., 35: 445-456.
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45. Roberts, J.R., 1992. Renal function and plasma arginine vasotocin during an acute salt load in feral chickens. J. Comp. Physiol. B, 162: 54-58.
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46. Roberts, J.R. and W.H. Dantzler, 1992. Micropuncture study of avian kidney: Effect of prolactin. Am. J. Physiol.-Regul. Integr. Comp. Physiol., 262: R933-R937.
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47. Roberts, J.R. and D. Balnave, 1992. The physiological basis of poor egg shell quality in laying hens: The effect of saline drinking water on electrolyte balance and renal function. J. Anim. Physiol. Anim. Nutr., 68: 197-204.
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48. Roberts, J.R., 1991. Renal function and plasma arginine vasotocin during water deprivation in an Australian parrot, the galah (Cacatua roseicapilla). J. Comp. Physiol. B, 161: 620-625.
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49. Roberts, J.R., 1991. Effects of water-deprivation on renal-function and plasma arginine vasotocin in the feral chicken, Gallus gallus (Phasianidae). Aust. J. Zool., 39: 439-446.
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50. Roberts, J.R. and W.H. Dantzler, 1990. Micropuncture study of the avian kidney: Infusion of mannitol or sodium chloride. Am. J. Physiol.-Regul. Integr. Comp. Physiol., 258: R869-R875.
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51. Roberts, J.R. and W.H. Dantzler, 1989. Glomerular filtration rate in conscious unrestrained starlings under dehydration. Am. J. Physiol.-Regul. Integr. Comp. Physiol., 256: R836-R839.
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52. Hughes, M.R., J.R. Roberts and B.R. Thomas, 1989. Renal function in freshwater and chronically saline-stressed male and female Pekin ducks. Poult. Sci., 68: 408-416.
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53. Roberts, J.T. and R.V. Baudinette, 1988. Responses to cold stress in two species of Australian quail, Coturnix pectoralis and Coturnix chinensis. Comp. Biochem. Physiol. Part A: Physiol., 91: 543-548.
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54. Roberts, J.R. and R.V. Baudinette, 1988. Responses to heat stress in two species of Australian quail, Coturnix pectoralis and Coturnix chinensis. J. Comp. Physiol. B, 158: 205-211.
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55. Hughes, M.R. and J.R. Roberts, 1988. Sodium uptake from the gut of freshwater-and seawater-acclimated ducks and gulls. Can. J. Zool., 66: 1365-1370.
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56. Hughes, M.R., J.R. Roberts and B.R. Thomas, 1987. Total body water and its turnover in free-living nestling glaucous-winged gulls with a comparison of body water and water flux in avian species with and without salt glands. Physiol. Zool., 60: 481-491.
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57. Roberts, J.R. and R.V. Baudinette, 1986. Thermoregulation, oxygen-consumption and water turnover in stubble quail, Coturnix pectoralis and king quail, Coturnix chinensis. Aust. J. Zool., 34: 25-33.
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58. Roberts, J.R., R.V. Baudinette and J.F. Wheldrake, 1985. Renal clearance studies in stubble quail Coturnix pectoralis and king quail Coturnix chinensis under conditions of hydration, dehydration and salt loading. Physiol. Zool., 58: 340-349.
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59. Roberts, J.R. and R.V. Baudinette, 1984. The water economy of stubble quail, Coturnix pectoralis and King Quail, Coturnix chinensis. Aust. J. Zool., 32: 637-647.
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60. Roberts, J.R. and M.R. Hughes, 1984. Saline acclimation and water and sodium transport across avian small intestine. Am. J. Physiol.-Regul. Integr. Comp. Physiol., 247: R246-R249.
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61. Roberts, J.R. and M.R. Hughes, 1984. Exchangeable sodium pool size and sodium turnover in freshwater- and saltwater-acclimated ducks and gulls. Can. J. Zool., 62: 2142-2145.
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62. Smyth, D.M. and J.R. Roberts, 1983. The sensitivity of echolocation by the grey swiftlet Aerodramus spodiopygius. IBIS: Int. J. Avian Sci., 125: 339-345.
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63. Roberts, J.R. and M.R. Hughes, 1983. Glomerular filtration rate and drinking rate in Japanese Quail, Coturnix coturnix japonica, in response to acclimation to saline water. Can. J. Zool., 61: 2394-2398.
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64. Baudinette, R.V., F.I. Norman and J. Roberts, 1982. Salt gland secretion in saline-acclimated chestnut teal and its relevance to release programs. Aust. J. Zool., 30: 407-415.
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65. Smyth, D.M., L. Pecotich and J.R. Roberts, 1980. Notes on the distribution and breeding of the grey swiftlet, Aerodramus spodiopygius. Sunbird: J. Queensland Ornithol. Soc., 11: 1-19.
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66. Roberts, J.R., D.M. Smyth and A.V. Spain, 1976. Preliminary studies on acoustic orientation in Collocalia spodiopygia. Search, 7: 97-98.