Newcastle University

Research Interests

Reproductive biology - specialising in the reproductive physiology of farm animals.

Undergraduate Teaching

ACE1012 Domestic Animal Physiology ML
ACE1013 Introduction to Genetics ML
ACE2025 Animal Breeding ML
ACE1011 Applied Domestic Animal Physiology
ACE2023 Agriculture II : Animal Production
ACE3043 Livestock Reproduction ML
ACE3044 Companion Animal Reproduction ML
AGR3048 Livestock Behaviour
ACE3044 Companion Animal Behaviour

• Hawken PAR, Beard AP. Ram novelty and the duration of ram exposure affects the distribution of mating in ewes exposed to rams during the transition into the breeding season. Animal Reproduction Science 2009, 111(2-4), 249-260.
• Madgwick S, Bagu ET, Duggavathi R, Bartlewski PM, Barrett DMW, Huchkowsky S, Cook SJ, Beard AP, Rawlings NC. Effects of treatment with GnRH from 4 to 8 weeks of age on the attainment of sexual maturity in bull calves. Animal Reproduction Science 2008, 104(2-4), 177-188.
• Pickard RM, Beard AR, Seal CJ, Edwards SA. Neonatal lamb vigour is improved by feeding docosahexaenoic acid in the form of algal biomass during late gestation. Animal 2008, 2(8), 1186-1192.
• Hawken PAR, Evans ACO, Beard AP. Prior exposure of maiden ewes to rams enhances their behavioural interactions with rams but is not a pre-requisite to their endocrine response to the ram effect. Animal Reproduction Science 2008, 108(1-2), 13-21.
• Hawken PAR, Evans ACO, Beard AP. Short term, repeated exposure to rams during the transition into the breeding season improves the synchrony of mating in the breeding season. Animal Reproduction Science 2008, 106(3-4), 333-344.
• Hawken PAR, Beard AP, Esmaili T, Kadokawa H, Evans ACO, Blache D, Martin GB. The introduction of rams induces an increase in pulsatile LH secretion in cyclic ewes during the breeding season. Theriogenology 2007, 68(1), 56-66.
• Hawken PAR, Beard AP, O'Meara CM, Duffy P, Quinn KM, Crosby TF, Boland MP, Evans ACO. The effects of ram exposure during progestagen oestrus synchronisation and time of ram introduction post progestagen withdrawal on fertility in ewes. Theriogenology 2005, 63(3), 860-871.
• Madgwick S, Evans ACO, Beard AP. Treating heifers with GnRH from 4 to 8 weeks of age advanced growth and the age at puberty. Theriogenology 2005, 63(8), 2323-2333.
• Evans ACO, Duffy P, Crosby TF, Hawken PAR, Boland MP, Beard AP. Effect of ram exposure at the end of progestagen treatment on estrus synchronisation and fertility during the breeding season in ewes. Animal Reproduction Science 2004,84 3-4 349-358.
• Bartlewski PM, Aravindakshan J, Beard AP, Nelson ML, Batista-Arteaga M, Cook SJ, Rawlings NC. Effects of medroxyprogesterone acetate (MAP) on ovarian antral follicle development, gonadotrophin secretion and response to ovulation induction with gonadotrophin-releasing hormone (GnRH) in seasonally anoestrous ewes. Animal Reproduction Science 2004,80 1-2 63-75.
• Bartlewski PM, Beard AP, Cook SJ, Rawlings NC. Ovarian activity during sexual maturation and following introduction of the ram to ewe lambs. Small Ruminant Research 2002,43 1 37-44.
• Rawlings NC, Kastelic JP, Evans ACO, Bartlewski PM, Beard AP, Chandolia RK, Cook SJ. Plasma concentrations of cortisol and progesterone during the period of reproductive development in beef and dairy heifers. Animal Science 2002, 75(2), 281-288.
• Bartlewski PM, Aravindakshan J, Beard AP, Nelson ML, Batista-Arteaga M, Cook SJ, Rawlings NC. Effects of medroxyprogesterone acetate (MAP) on ovarian antral follicle development, gonadotropin secretion and response to GnRH in seasonally anovular ewes. In: Biology of Reproduction. 2001, Society for the Study of Reproduction.
• Bartlewski PM, Beard AP, Chapman CL, Nelson ML, Palmer B, Aravindakshan J, Cook SJ, Tawlings NC. Ovarian responses in gonadotrophin-releasing hormone-treated anoestrous ewes: follicular and endocrine correlates with luteal outcome. Reproduction, Fertility and Development 2001, 13(2-3), 133-142.
• Evans ACO, Flynn JD, Quinn KM, Duffy P, Quinn P, Madgwick S, Crosby TF, Boland MP, Beard AP. Ovulation of aged follicles does not affect embryo quality or fertility after a 14-day progestagen estrus synchronization protocol in ewes. Theriogenology 2001, 56(5), 923-936.
• Bartlewski PM, Beard AP, Rawlings NC. An ultrasound-aided study of temporal relationships between the patterns of LH/FSH secretion, development of ovulatory-sized antral follicles and formation of corpora lutea in ewes. Theriogenology 2000, 54(2), 229-245.
• Aravindakshan JP, Honaramooz A, Bartlewski PM, Beard AP, Pierson RR, Rawlings NC. Gonadotrophin secretion in prepubertal bull calves born in spring and autumn. Journal of Reproduction and Fertility 2000, 120(1), 159-167.
• Honaramooz A, Chandolia RK, Beard AP, Rawlings NC. Opioidergic, dopaminergic and adrenergic regulation of LH secretion in prepubertal heifers. Journal of Reproduction and Fertility 2000, 119(2), 207-215.
• Bartlewski PM, Vanderpol J, Beard AP, Cook SJ, Rawlings NC. Ovarian antral follicular dynamics and their associations with peripheral concentrations of gonadotropins and ovarian steroids in anoestrous Finnish Landrace ewes. Animal Reproduction Science 2000, 58(3-4), 273-291.
• Aravindakshan JP, Honaramooz A, Bartlewski PM, Beard AP, Pierson RA, Rawlings NC. Pattern of gonadotropin secretion and ultrasonographic evaluation of developmental changes in the testis of early and late maturing bull calves. Theriogenology 2000, 54(3), 339-354.
• Rawlings NC, Kastelic J, Evans ACO, Bartlewski PM, Beard AP, Chandolia RK, Cook SJ. Stress and ACTH induced cortisol and progesterone secretion during the period of reproductive development in heifer calves. J. Reprod. Fertil., Abstract Series No 25, 220 2000.
• Bartlewski PM, Beard AP, Rawlings NC. Ultrasonographic study of ovarian function during early pregnancy and after parturition in the ewe. Theriogenology 2000, 53(3), 673-689.
• Beard AP, Rawlings NC. Thyroid function and effects on reproduction in ewes exposed to the organochlorine pesticides Lindane or Pentachlorophenol (PCP) from conception. Journal of Toxicology and Environmental Health, Part A., 58(8), 509-530 1999.
• Bartlewski PM, Beard AP, Rawlings NC. An ultrasonographic study of luteal function in breeds of sheep with different ovulation rates. Theriogenology 1999, 52(1), 115-130.
• Beard AP, Bartlewski PM, Rawlings NC. Endocrine and reproductive function in ewes exposed to the organochlorine pesticides Lindane or Pentachlorophenol. Journal of Toxicology and Environmental Health, Part A: Current Issues 1999, 56(1), 23-46.