Dr Daniel Brown

Principal Scientist - Animal Genetics and Breeding Unit (AGBU)

Daniel Brown

Phone: +61 2 6773 2160

Email: dbrown2@une.edu.au

Qualifications

2000 Doctor of Philosophy, University of New England, Australia.
Thesis: The estimation and utilisation of variation in fibre diameter profile characteristics between sheep.

1995 Bachelor of Applied Science - Rural Technology (1st Class Honours), University of Queensland, Australia.
Major: Animal Production

Research Interests

All  aspects of genetic improvement of sheep, with a focus on the research and  development of the OVIS software package. OVIS is used to estimate Australian Sheep Breeding values (ASBVs) for publication by Sheep Genetics.

Publications

Some of these papers are available here as PDF files for further  reading. For those that are not, feel free to email me for more information.

2014

Bird-Gardiner, T L; Brown, D J; Smith, J L; Mortimer, S I and Refshauge, G  (2014).  “Breech strike indicator traits for Merino sheep in non-seasonal rainfall environments.”  In Proceedings  of the 10th World Congress on Genetics Applied to Livestock Production,  Vancouver, Canada, 17-22 August.  Paper   891.

Brown, D J and Swan, A A (2014).  “Genetic analysis of adult body  weight and condition scores in Merino sheep.”   In Proceedings of the 10th World Congress on  Genetics Applied to Livestock Production, Vancouver, Canada, 17-22  August.  Paper  907.

Clark, S A; Brown, D J and van der Werf, J H J (2014).  The effect of using genomic  breeding values to manage the loss in response to selection caused by genotype  by environment interactions.”  In Proceedings of the 10th World Congress on  Genetics Applied to Livestock Production, Vancouver, Canada, 17-22  August.  Paper  409.

Daetwyler, HD; Bolormaa, S;  Kemper, K E; Brown, D J; Swan, A A; van der Werf, J H J and  Hayes, B J (2014).  “Using genomics to  improve reproduction traits in sheep.”  In Proceedings of the 10th World Congress on  Genetics Applied to Livestock Production, Vancouver, Canada, 17-22  August.  Paper  156.

Mortimer, S I; Swan, A A; Brown, D J and van der Werf, J H J (2014).  “Genetic parameters revisited for ultrasound  scanning traits in Australian sheep.”  In Proceedings of the 10th World Congress on  Genetics Applied to Livestock Production, Vancouver, Canada, 17-22  August.  Paper  345.

Newton, J E; Brown, D J; Swan, A A; Dominik,  S and van der Werf, J H J (2014).  “Effects  of selection accuracy, risk and young ewe fertility on breeding program  design.”  In Proceedings of the 10th World Congress on Genetics Applied to Livestock  Production, Vancouver, Canada, 17-22 August.  Paper  912.

Swan, A A; Brown,  D J; Daetwyler, H D; Hayes, B J; Kelly, M; Moghaddar, N and van der Werf, J  H J (2014).  “Genomic evaluations in the  Australian sheep industry.”   In Proceedings of the 10th World Congress on  Genetics Applied to Livestock Production, Vancouver, Canada, 17-22  August.  Paper  334.

Brown, D J; Jones, R M and Hinch, G N (2014).  “Genetic parameters for lamb autopsy traits.”  Animal  Production Science 54 (6):736-744   doi: org/10.1071/AN13227.

Huisman,  A E; Brown, D J and Fogarty, N M (2014). “Ability of sire breeding values to predict  progeny bodyweight, fat and muscle using various transformations across  environments in terminal sire sheep breeds.”  Animal Production Science  doi.org/10.1071/AN14666.

Newton,  J E; Brown, D J; Dominik, S and van der Werf, J H J  (2014).  “Genetic and phenotypic correlations between yearling, hogget and adult reproductive performance and age of first oestrus in  the ewe progeny of the Information Nucleus Flock.“  Animal  Production Science 54 (6):753-761  doi: org/10.1071/AN13245.

2013

Bird-Gardiner, T L; Brown, D J; Smith, J L and Mortimer, S I (2013).   “Inheritance of flystrike recorded in a non-seasonal rainfall  environment.” Proc. Assoc. Advmt. Anim. Breed.  Genet. Napier, New Zealand, July 20-23.  20:183-186.

Brown, D J; Swan, A A; Gill, J S and Banks, R B (2013).   “Strategies to objectively group merino flocks in sheep genetics.”  Proc. Assoc. Advmt. Anim. Breed. Genet. Napier, New Zealand, July 20-23.  20:66-69.

Brown, D J; Swan, A A and Gill, J S (2013). “Genetic  correlations across ages for greasy fleece weight and fibre diameter in Merino  sheep.”  Proc. Assoc. Advmt. Anim. Breed. Genet. Napier, New Zealand,  July 20-23.  20:110-113.

Bunter, K L and Brown, D J (2013).  “Yearling and adult expressions of  reproduction in maternal sheep breeds are genetically different traits.”  Proc. Assoc. Advmt. Anim. Breed. Genet. Napier, New Zealand,  July 20-23.  20:82-85.

Daetwyler, H D; Bolormaa, S; Brown, D J;  van der Werf, J H J and Hayes, B J (2013).   “A genomic prediction cross-validation approach combining ewe repeated  phenotypes and ram daughter trait deviations.”   Proc. Assoc.  Advmt. Anim. Breed. Genet. Napier, New Zealand, July 20-23.  20:360-363.

Li, L; Brown, D J and Gill, J S (2013).  “Genetic parameters for body weight, carcass  and wool traits in Dohne Merino.” Proc. Assoc. Advmt. Anim. Breed.  Genet. Napier, New Zealand, July 20-23.  20:241-244.

Newton, J E; Brown, D J; Dominik, S and  van der Werf, J H J (2013).  “Age at first oestrus. A useful trait for early  reproductive performance?” Proc. Assoc. Advmt. Anim. Breed.  Genet. Napier, New Zealand, July 20-23.  20:86-89.

Swan, A A and Brown, D J (2013).  “The impact of measuring adult fleece traits  with genomic selection on economic gain in merino selection indexes.”  Proc. Assoc. Advmt. Anim. Breed. Genet. Napier, New Zealand,  July 20-23.  20:233-236.

van der Werf, J H J; Brown, D J and Swan A A (2013).  “Prediction of genomic breeding values across  genetic groups.”  Proc. Assoc. Advmt. Anim. Breed. Genet.  Napier, New Zealand, July 20-23.  20:340-343.

2012

Maximini L; Brown D J; Baumung, R and Fuerst-Waltl, B (2012).  “Genetic parameters of ultrasound and computer tomography scan traits in Austrian meat sheep.”  Livestock Science 146 (2-3):168-174 doi: org/10.1016/j.livsci.2012.03.007.

Swan, A A; Johnston, D J; Brown, D J; Tier, B and Graser, H-U (2012).  “Integration of genomic  information into beef cattle and sheep genetic evaluations in Australia.”  Animal  Production Science 52 (3):126-132 doi.org/10.1071/AN11117.

2011

Ball, A J; Banks, R B; Brown, D J and Field, S R (2011).  “Genetic progress in Australian young sire  programs: A model for increasing the rate of genetic improvement.”  Proceedings  of the 19th Conference of the Association for the Advancement of Animal Breeding and Genetics. Perth, Western Australia. July 19 - 21. pp.403-406.

Brien,  F D; Hinch, G N; van der Werf, J H J; Brown, D J and Swan, A A (2011).  “Selection strategies for the  genetic improvement of reproductive performance in sheep.”  Proceedings of the 19th Conference of the  Association for the Advancement of Animal Breeding and Genetics. Perth, Western  Australia. July 19 - 21. pp.151-158.

Brown, D J; Swan, A A and Mortimer, M L (2011). “Pedigree matchmaker: Can it tell us more  than just pedigree?” Proceedings of the 19th Conference of the  Association for the Advancement of Animal Breeding and Genetics. Perth, Western  Australia. July 19 - 21. pp.231-234.

Maximini, L; Brown, D J and Fuerst-Waltl B (2011). “Genetic parameters for live weight,  ultrasound scan traits and muscling scores in Austrian meat sheep.”  EAAP (Ed.) Book of Abstracts of the 62nd  Annual Meeting of the European Federation of Animal Science, Stavanger (NOR),  August 29 – September 2. Book of Abstracts No.  17: 345.

Swan, A A; Brown, D J; Tier, B and van der Werf, J (2011).  “Use of genomic information to estimate  breeding values for carcass traits in sheep.”   Proceedings of the 19th  Conference of the Association for the Advancement of Animal Breeding and  Genetics. Perth, Western Australia. July 19 - 21. pp.331-334.

Swan, A A; Johnston, D J; Brown, D J; Tier, B and Graser, H-U (2011).  “Integration of genomic  information into beef cattle and sheep genetic evaluations in Australia.”  Animal  Production Science doi.org/10.1071/AN11117.

2010

Greeff, J; Kinghorn, B P and Brown, D J (2010).  Breeding and Selection in International  Sheep and Wool Handbook, Cottle, D J (Ed).  Nottingham University Press.

Brown, D J; Swan, A A and Graser, H-U (2010). “Genetic  relationships between indicator traits for fly strike resistance and production  traits in Merino sheep.”  Proceedings of  the 9th World Congr. Genet. Appl. Livest. Prod. Leipzig, Germany, 1-6 August.

Brown, D J;  Swan, A A and Gill, J S (2010). “Within- and across-flock genetic  relationships for breech flystrike resistance indicator traits”.  Animal  Production Science 50:1060-1068.

2009

Banks, R G; Brown, D J and Field, S R (2009). “Meta-analysis of cross-bred progeny data for Australian terminal sire sheep.”  Proceedings of the 18th Conference of the Association for the Advancement of Animal Breeding and Genetics. Barossa Valley, South Australia. September 28-October 1. pp.480-483.

Brown, D J; Swan, A A; Johnston, D J and Graser, H-U (2009).  “Sire  by flock-year interactions for body weight in Poll Dorset sheep.”  Proceedings of the 18th Conference of the  Association for the Advancement of Animal Breeding and Genetics. Barossa  Valley, South Australia. September 28-October 1. pp.48-51.

Swan, A A; Brown, D J and Banks, R G (2009). “Genetic progress in the Australian Sheep  Industry.”  Proceedings of the 18th  Conference of the Association for the Advancement of Animal Breeding and  Genetics. Barossa Valley, South Australia. September 28-October 1. pp.326-329.

Whelan, M B; Cottle, D J;  Geenty, K G and Brown, D J (2009).  “Classifying sheep grazing  environments using satellite data to quantify genotype by environment  interactions.”  Proceedings of the 18th  Conference of the Association for the Advancement of Animal Breeding and  Genetics. Barossa Valley, South Australia. September 28-October 1. pp.52-55.

Young, M J; Newman, S-A N; Apps, R and Brown, D J (2009).  “Trans-Tasman genetic evaluations of sheep –  spreading the net wider.”  Proceedings of the New Zealand Society of  Animal Production.  Barossa  Valley, New Zealand. June. pp.158-161.

Banks, R G and Brown, D J (2009).  ‘Genetic improvement in the Australasian Merino – management of a diverse gene pool  for changing markets.”  Animal Genetic  Resources Information 45:29-36.

Huisman, A E and Brown, D J (2009).   “Genetic parameters for bodyweight, wool and disease resistance and reproduction traits in Merino sheep. 3. Genetic relationships between ultrasound scan traits and other traits.” Animal Production Science 49:283-288.

Huisman, A E and Brown, D J (2009).  “Genetic parameters for bodyweight, wool and disease resistance and reproduction traits in Merino  sheep. 4. Genetic relationships between and within wool traits.” Animal Production Science 49:289-296.

pre -2009

Brown, D J (2007).  “Variance components for lambing ease and  gestation length in sheep.”  Proceedings of the 17th Conference of the Association for the Advancement of Animal Breeding and Genetics. Armidale, Australia.  September 24-26. pp.268-271.

Brown D J; Huisman, A E; Swan, A A; Graser, H-U; Woolaston, R R; Ball, A J; Atkins, K D and  Banks, R G (2007).  “Genetic evaluation for the Australian sheep industry.”  Proceedings  of the 17th Conference of the Association for the Advancement of  Animal Breeding and Genetics. Armidale,   Australia.  September 24-26. pp.187-194.

Huisman, A E and Brown, D J (2007).  “What genetic group structure to  fit? A Bayesian approach applied to yearling worm egg count data in Merino sheep.”  Proceedings  of the 17th Conference of the Association for the Advancement of  Animal Breeding and Genetics. Armidale,   Australia.  September 24-26. pp.399-402.

Johnston, D J; Brown, D J and Graser, H-U (2007).  “The effect of age slicing interval on the variance components and data effectiveness for birth and 200day weights in Angus cattle.”  Proceedings of the 17th Conference of the Association for the Advancement of Animal Breeding and Genetics. Armidale, Australia. September 24-26. pp.344-347.

Khusro, M; Brown, D J; Graser, H-U and Tier, B (2007). “The effect of linkage and flock size on the accuracy  of estimated genetic group effects.”  Proceedings  of the 17th Conference of the Association for the Advancement of  Animal Breeding and Genetics. Armidale,   Australia.  September 24-26. pp.545-548.

Swan, A A and Brown, D J (2007).  “A simple bootstrapping procedure to validate the MERINOSELECT model for weaning weight.”  Proceedings of the 17th Conference of the Association for the Advancement of Animal Breeding and Genetics. Armidale, Australia. September 24-26. pp.395-398.

Brown, D.J. (2006).  “Genetic aspects of greasy wool colour assessments in Merino sheep.”  International Journal of Sheep and Wool Science 54(3): 1-16.

Huisman, A.E.; Tier, B. and Brown, D.J. (2006). "On assessing contrasts between groups of animals." Livestock Science 104(3): 254-267.

Brown, D.J.; Ball, A.J.; Huisman, A.E.; Swan, A.A.; Atkins, R.D.; Graser, H.-U.; Banks, R.; Swan, P. and Woolaston, R.R. (2006). "Sheep Genetics Australia: A national genetic evaluation system for Australian sheep." Proceedings of the 8th World Congr. Genet. Appl. Livest. Prod. Belo Horizonte, Brazil, 13-18 August. P. 05-03.

Huisman, A.E. and Brown, D.J. (2006). "Predictive ability of sire weaning weight breeding values estimated across environments in terminal sire sheep breeds." Proceedings of the 8th World Congr. Genet. Appl. Livest. Prod. Belo Horizonte, Brazil, 13-18 August. P. 04-07.

Brown, D.J. and Crook, B.J. (2005). "Environmental responsiveness of fibre diameter in grazing fine wool Merino sheep." Aust. J Agric Research 56(7): 673-684.

Brown, D.J.; Atkins, K. and Huisman, A.E. (2005). "Expression of body weight, fleece weight and fibre diameter in across flock genetic evaluation." In Proceedings of the 16th Conference of the Association for the Advancement of Animal Breeding and Genetics. Noosa, Australia. September 25-28. pp.84-87.

Brown, D.J.; Ball, A. and Huisman, A.E. (2005). "The influence of ewe weight at mating on lamb performance and reproduction of the ewe." In Proceedings of the 16th Conference of the Association for the Advancement of Animal Breeding and Genetics. Noosa, Australia. September 25-28. pp.306-309.

Brown, D.J. and Fozi, M.A. (2005). "Genetic parameters for body weight and carcase traits in Australian based south African meat Merino sheep." In Proceedings of the 16th Conference of the Association for the Advancement of Animal Breeding and Genetics. Noosa, Australia. September 25-28. pp.310-313.

Huisman, A.E. and Brown, D.J. (2005). "Genetic parameters for ultrasound scan and wool traits at yearling and hogget age in Merino sheep." In Proceedings of the 16th Conference of the Association for the Advancement of Animal Breeding and Genetics. Noosa, Australia. September 25-28. pp.32-35.

Huisman, A.E.; Tier, B. and Brown, D.J. (2005). "Multiple trait linkage across flocks." In Proceedings of the 16th Conference of the Association for the Advancement of Animal Breeding and Genetics. Noosa, Australia. September 25-28. pp.250-253.

Ingham, V.M.; Fogarty, N.M.; Gilmour, A.R.; Brown, D.J.; Cummins, L.J.; Gaunt, G.M.; Stafford, J. and Hocking Edwards, J.E. (2005). "Relationships between LAMBPLAN EBVS for rams and post weaning performance of their crossbred progeny." In Proceedings of the 16th Conference of the Association for the Advancement of Animal Breeding and Genetics. Noosa, Australia. September 25-28. pp.227-230.

Khusro, M.; Brown, D.J.; Van der Werf, J.H.J. and Graser, H.-U. (2005). "Breed differences and crossbreeding effects in Australian meat sheep breeds." In Proceedings of the 16th Conference of the Association for the Advancement of Animal Breeding and Genetics. Noosa, Australia. September 25-28. pp.231-234.

Khusro, M.; Van der Werf, J.H.J.; Brown, D.J. and Ball, A. (2004). Across flock (co)variance components for faecal worm egg count, live weight, and fleece traits for Australian merinos.Livest Prod Sci . 91(1-2):35-43.

Apps, R.; Brown, D.J.; Ball, A.; Banks, R. and Field, S. (2003). Genetic opportunities to improve lamb weaning rates in Merinos. In Proceedings of the 15th Conference of the Association for the Advancement of Animal Breeding and Genetics. Melbourne, Vic. pp. 249-252.

Brash, L.D.; Barwick, S.A. and Brown, D.J. (2003). The impact of recording performance criteria on index accuracy in terminal sire sheep breeds for a range of breeding objectives. In Proceedings of the 15th Conference of the Association for the Advancement of Animal Breeding and Genetics. Melbourne, Vic. pp. 257-260.

Brown, D.J. and Tier, B. (2003). Alternate methods for estimating breeding values for faecal egg count data from merino studs across Australia. In Proceedings of the 15th Conference of the Association for the Advancement of Animal Breeding and Genetics. Melbourne, Vic. pp. 115-118.

Clarke, B.E.; Brown, D.J. and Ball, A.J. (2003). Preliminary genetic parameters for live weight and ultrasound scan traits in Merinos. In Proceedings of the 15th Conference of the Association for the Advancement of Animal Breeding and Genetics. Melbourne, Vic. pp. 326-329.

Brown, D.J.; Ball, A.; Mortimer, R. and Oppenheimer. M (2002). Incorporating subjectively assessed sheep wool traits into genetic evaluations for Merino sheep 1: Phenotypic variation and heritabilities. Wool Technology and Breeding 50(3), 373-377.

Brown, D.J.; Ball, A.; Mortimer, R. and Oppenheimer. M (2002). Incorporating subjectively assessed sheep wool traits into genetic evaluations for Merino sheep 2: Phenotypic and genetic correlations. Wool Technology and Breeding 50(3), 378-382.

Brown, D.J. and Reverter, A. (2002). The use of weaning weight to adjust for pre-weaning environmental effects on body weight, fleece weight and fibre diameter in Merino hoggets. Proceedings 7th World Congress on Genetics Applied to Livestock Production, Vol 31, 529-532. Montpellier, France.

Brown, D.J. and Schlink, A.J. (2002). A comparison of fibre diameter profiles generated using 2 mm snippet techniques to those measured using the OFDA2000, Wool Technology and Sheep Breeding 50(1), 27-39.

Brown, D.J. and Reverter, A. (2002). A comparison of methods to pre-adjust data for systematic environmental effects in genetic evaluation of sheep, Livestock Production Science, 75(3), 281-291.

Brown D.J.; Crook B.J. and Purvis I.W. (2002). Differences in fibre diameter profile characteristics and their relationship with staple strength between years, environments and bloodlines, Australian Journal of Agricultural Research, 53(4) 481-491.

Brown, D.J.; Tier, B. and Ball, A.J. (2001). What does OVIS offer the Merino Breeder? Proceedings of the Association for the Advancement of Animal Breeding and Genetics 14, 525-528.

Brown, D.J.;Tier, B. and Banks, R.B. (2001). Implications of data quality on the accuracy of estimated breeding values for weaning weight in sheep, Proceedings of the Association for the Advancement of Animal Breeding and Genetics 14, 441-444.

Brown, D.J.; Tier, B.; Reverter, A.; Ball, A.J. and Banks, R.B. (2001). Genetic parameters for liveweight, wool growth and litter size and the associations among these traits in Corriedale sheep, Proceedings of the Association for the Advancement of Animal Breeding and Genetics 14, 119-122.

Brown, D.J.; Reverter, A. and Tier, B. (2001). Influence of environmental factors and trait representation on the genetic evaluation of reproductive traits in sheep, Proceedings of the Association for the Advancement of Animal Breeding and Genetics 14, 131-134.

Ball, A.J.; Brown, D.J.; Spiker, S.A.; Field, S.R. and Banks, R.B. (2001). KIDPLAN – opportunities for genetic development of the Boer goat in Australia, Proceedings of the Association for the Advancement of Animal Breeding and Genetics 14, 445-448.

Reverter, A.; Brown, D.J. and Tier, B. (2001). PARITIES: A software to simulate number of individuals born for multiparous species, Proceedings of the Association for the Advancement of Animal Breeding and Genetics 14, 389-392.

Brown D.J. and Crook B.J. (2001). Determinants of environmental responsiveness of fibre diameter in grazing fine wool Merino sheep Australian Journal of Agricultural Research (Submitted).

Brown, D.J.; Wolcott, M.L. and Crook, B.J. (2001). The measurement of skin thickness in Merino sheep using real time ultrasound, Wool Technology and Sheep Breeding, 48(4), 269-276.

Brown, D.J. (2000). " The estimation and utilisation of variation in fibre diameter profile characteristics between sheep." PhD Thesis, The University of New Engalnd, Armidale, Australia.

Brown, D.J.; Crook, B.J. and Purvis, I.W. (2000). The estimation of fibre diameter profile characteristics using reduced profiling techniques, Wool Technology and Sheep Breeding 48(1), 1-14.

Brown, D.J.; Crook, B.J. and Purvis, I.W. (2000). Variation in fibre diameter profile characteristics between wool staples in Merino sheep, Wool Technology and Sheep Breeding 48(2), 86-93.

Brown, D.J.; Tier, B.; Reverter, A.; Banks, R. and Graser, H.U. (2000). OVIS: A multiple trait breeding value estimation program for genetic evaluation of sheep, Wool Technology and Sheep Breeding, 48(4), 285-297.

Brown, D.J.; Schlink, A.J. and Crook, B.J. (2000). Methods for estimating fibre length and diameter in wool staples, Wool Technology and Sheep Breeding 47(3),170-183.

Brown, D.J.; Crook, B.J. and Purvis, I.W. (1999). Genotype and environmental differences in fibre diameter profile characteristics and their relationship with staple strength in Merino sheep, Proceedings of the Association for the Advancement of Animal Breeding and Genetics 13, 274-277.

Brown, D.J. and Murray, P.J. (1998). The influence of the rumen fermentation modifiers Monensin and Narasin on liveweight gain and wool production in Merino sheep, Proceedings of the Australian Society of Animal Production, 22, 418.

Brown, D.J. (1995). "The influence of the rumen fermentation modifiers, Monensin and Narasin on liveweight gain and wool production in Merino sheep." Thesis Submitted as part of Bachelor of Applied Science. University of Queensland.

Further Information

Other Interests

Rabbit breeding and genetics including the development of genetic evaluation systems for the Australian meat rabbit industry.

Managing my own fine wool sheep enterprise and a 100 doe rabbit farm.