About IAP Nutrition
IAP Nutrition Staff
Consulting in Animal Nutrition & Health
Livestock - Staff Benchmarking
Maintenance Management
Benchmarking of Operational Management
Feedlot Monitoring
Distillers Grains
Feed Energy
Hormone Growth Promotant
NSW Feedlot
Ringwood Station
Cattle Feeding
Lamb Gallery
Meat Gallery
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What's New



Observations of the Irish Beef Industry, a report arising from a visit to several Irish beef and.. Read More


IAP Innovation award: Ultrasound pregnancy scanner ReproScan from the Catagra group is the w.. Read More


IAP innovators award: IAP is again proud to be involved with the IAP innovators award at Be.. Read More


Rob Lawrence to speak at Beefworks 2013: Beta Agonists - an exploration of the facts: Despit.. Read More

IAP Nutrition Staff

John Doyle

John is the Managing Director of Integrated Animal Production Pty Ltd which he founded in December 1997. The business provides consultancy services to beef, dairy and swine industries within Australia as well as South Africa, Indonesia, the USA and Argentina. John's primary focus is within the feedlot industry.

John was raised in San Antonio, Texas, USA and following undergraduate studies in Biology (Texas Lutheran College), completed a Masters in Nutrition (University of Arizona) and, after several years within the industry, he returned to complete veterinarian studies (Tuskegee Institute, School of Veterinarian Medicine, Tuskegee, AL). While practicing veterinary medicine he obtained his PhD in Nutrition in 1989 (Texas A & M University). After broad experiences in feedmill management, nutritional consultancy and as a practicing Veterinarian in the USA, John moved to Australia in 1993.

Aside from consultancy John has a keen interest in research and education. He has served as Adjunct Associate Professor at the Queensland School of Veterinary Medicine (2002) and contributes to the University of Queensland's School of Animal Science with an animal industry lecture series.

Although he is a permanent resident of Australia he maintains his involvement in the family goat and beef ranch in Texas.

Phil Dew

Phil has been an Associate and Consultant with lAP Pty Ltd since September 2001, providing technical advice to both feedlot and dairy clients throughout Australia. A life spent on the family beef cattle property in Kempsey, NSW, led to studies in Rural Science at the University of New England, and more recently the completion of a Masters in Ruminant Nutrition at West Texas A&M University in the USA.

Phil's previous professional experiences include several years as the feedmill and feedlot operations manager with the Australian Agricultural Company in Central Queensland. Here Phil had the unique
experience of being part of the team responsible for the green site development and expansion of Goonoo Feedlot to its full capacity of 17,500 head.

Rob Lawrence

Rob joined IAP Pty Ltd as a Consulting Nutritionist and Associate in February 2001. Rob has developed an extensive client base within Queensland, Northern New South Wales and Western Australia.

Prior to joining IAP, Rob has been employed as a nutritionist with Ridley Agriproducts, a feed manager with Whyalla Feedlot and also spent two years working in the Riverina on a sheep station.

Rob completed both a Bachelor and Masters in Rural Science, as well as a Certificate in Meat Science at the University of New England, Armidale, NSW. Rob also completed a PhD with the University of Queensland in 2007.

Rob is married and lives in Tamworth. Outside work and domestic bliss, Rob's greatest passion is attempting to master the bag pipes.

Lesley-Anne Nuttall-Smith

Lesley-Anne has been the Financial Controller for IAP Pty Ltd since December 2003. This was on a part-time basis until March 2007 when Lesley-Anne took on the full-time role of  Financial and Administration Manager. She is responsible for directing all financial and accounting aspects of the business.

Lesley-Anne was born and raised in Zimbabwe, Africa. She completed a Bachelor of Accounting Science with the University of South Africa in 1983 and was admitted to the Institute of Chartered Accountants (Zimbabwe) in 1984. During this time, she completed Articles of Clerkship with a major accounting firm. This subsequently lead to Lesley-Anne joining the accounting partnership in 1985 where she remained a partner for 14 years.

She moved to Australia with her husband and two children in 1999 and took out Australian Citizenship in 2003.

Lesley-Anne is also an Accredited Life & Business Coach.