About
bonanza

Bonanza Calf Nutrition was established to offer farmers in the UK and Ireland a range of superior milk replacer ingredients for rearing their dairy heifer replacements and beef calves.

Our partners are Bonilait who strive to be the best producers of milk replacer for dairy replacements and beef calves in Europe using milk from their own suppliers and continued investment in the latest drying and mixing technology with a capability of accurately including ingredients at dose rate of just 50ppm.

As such, we have access to 43 different types of milk, a vast range of ingredients that has allowed us to offer farmers low heat buttermilk and a wider range of fats, including formulations that don’t include palm or soya. Ewe milk has been introduced into our lamb milk replacers and goat milk into our kid milk formulas, offering animals a consistent product and their owners the security of full traceability back to source. All our milk replacer ingredients are dried using low heat and homogenisation technology.

Our formulations – Shine, Transformula, Ewe-reka and Milky Way – are used successfully on farms throughout Europe and are undisputed brand leaders. We are on a journey of continual improvement and therefore work with a wide range of research bodies to help improve calf rearing for our customers. And our Calf Chat forum and Novatec platform provide farmers and their staff with training and help when they need it.

The Team

We have a team of calf advisors who provide on-farm support to customers to improve their calf rearing, while also assisting them to reduce labour and other costs and to utilise existing farm buildings.

Tom Warren

Managing Director

After studying Agricultural Science at University College Dublin, Tom started his career in calf nutrition, running a commercial trial unit for an Irish dairy coop and completing his M Agr Sc. He also held a number of commercial roles in the UK and Ireland at the same time before moving to the mineral supplement sector. Here, he developed a patented range of pre-lambing and pre- calving feeds before setting up Bonanza Calf Nutrition in 2008 to offer a wider range of milk ingredients for rearing calves and lambs. His ethos is to support customers by employing dedicated advisors to become part of their calf rearing team.

Joe Murphy

Division Manager

Joe Murphy started his career in calf nutrition after studying agriculture in University College Dublin. After 30 years working in the UK, NI and ROI, Joe has been instrumental in developing the correct calf rearing protocols for a whole raft of rearing systems including Once-a-day feeding and use of automatic feeders. He was also the driving force in the development and use of transition milk replacers.

Selina Field

UK Sales Manager

Selina grew up on a dairy farm in Staffordshire. Having attended Bangor University attaining her undergraduate degree, she went on to work for 4 years as an R-SQP for an agricultural merchant in Cheshire selling milk replacer, animal health, grass seed and minerals. Selina joined Bonanza Calf Nutrition in 2015 as Regional Sales Manager, attaining her MSc in Ruminant Nutrition at Harper Adams University in 2022. In January 2022 Selina was promoted to UK Sales Manager. Selina's sales area encompasses the North Midlands and extends north to include Scotland. Selina most enjoys providing expert calf rearing advice and support to farm businesses, helping them improve their operations and overcome challenges. In her spare time, she is kept busy with her two young children. She enjoys walking, camping and playing badminton.

Mollie Phipps

Regional Sales Manager - Wales & The Midlands

Mollie has been with Bonanza Calf Nutrition since 2020, working as the Regional Sales Manager covering Wales and the Midlands. She holds a BSc (Hons) in Agriculture and has previous experience in agricultural research trials. Mollie most enjoys exchanging knowledge with farmers, sharing ideas, offering support, and learning from their experiences. She is passionate about building strong relationships and always looks forward to meeting new people across the region. Outside of work, she is actively involved in the calf rearing on her husband’s dairy farm, where they have been long-standing users of Bonanza calf milk replacers - even prior to her joining the sales team. This hands-on experience provides a valuable, practical insight into the products she represents, allowing her to offer advice that is both informed and grounded in the realities of day-to-day calf rearing. In her spare time, she enjoys gardening, walking her two Border Collies, and showing her ponies.

Dr Amanda Dunn

Sales and Technical Manager

Amanda studied Agriculture Technology at Queen’s University Belfast and completed a PhD at AFBI Hillsborough on calf immunity. For the past 9 years, she has worked in sales and technical support with Bonanza Calf Nutrition, while also rearing calves on the family dairy farm. Mum of two girls, shes love animals, country walks, baking, and catching up with friends.

Sam Baker

Regional Sales Manager - South West

Sam Baker is our regional representative for south west of England and uses her knowledge gained as a vet-tech and TB tester to support farmers seeking to optimise calf wellbeing and nutrition. Born and raised in west Cornwall, Sam spent five years working with local farmers in her role at one of the region’s largest farm animal practices following some time spent milking. Sam completed a degree in agriculture at Duchy College and enjoys being out and about meeting and talking to farmers. She was also in the first cohort to complete the brand new veterinary technician foundation degree which stands her in good stead to take a holistic view to calf and youngstock rearing, delivering value to farmers and trade customers.

Amber Broadway