Calf Health Champions
Testimonials
Kevin O Hanlon
Kevin is the farm manager of 150 cow dairy farm in organic conversion. Like every farm, calf health was challenging, with scour and pneumonia being the two big challenges. While calf mortality was not an issue, it was the setbacks calves receive following an outbreak that Kevin found the most frustrating.
He started Precision Microbes in the calves this autumn. He is feeding 30mls per calf per day right up to weaning. He is delighted with the results. Better calf performance and considerable improvements in calf health.
They have seen no disease issues in calves this autumn and a very big difference in calf thrive.
Listen to what Kevin has to say about the difference Precision Microbes has made on the farm.
Donnie and Marie Liston
They already have bought half of next year’s supply. A strong endorsement from the Liston’s on how effective Precision Microbes has been this year. While initially using 50mls daily to help calves with scour/diarrhoea recover, they moved to long-term usage, giving 30mls daily to young calves from birth. We are delighted to see customers like Donal and Maire get the results with PM calf probiotics and postbiotics.
Shane McDermott
A couple of weeks ago we visited the McDermott family in Co Galway. They are an expanding dairy herd and family farm. Shane has been the chief calf rearer for the last number of years. Getting up before school and then on his return from school attends calves again. They had lots of challenges in the past and particularly in 2020 with calf scour and diarrheoa.
They started like many farmers using Precision Microbes to help calves recover from scour and diarrheoa. Using a protocol of 60mls daily orally for 5-7 days. With very sick calves they would use 60mls twice daily for the first 3 days. Seeing the product working well they went to long-term feeding of 30mls daily from birth.
They have seen a transformation in calf health this spring with this protocol. Like many farmers, they are looking at building new calf facilities and focused on continual improvement post-expansion. It was quite inspiring to hear Shane’s story and his dedication to his calves.
David Cargill
We hear from David Cargill a dairy farmer in Co Antrim about his experience with Precision Microbes unique Probiotic and Postbiotic liquid Giving the product long term 30mls daily per calf from birth through milk.
Highly palatable and mixes easily through milk helps with appetite and reduces issues in calves on automatic feeders.
James toner
James is using precision microbes from birth in his calves. He has seen a massive improvement in calf health over the last 3-4 months.
Peter Ryan
We hear from Peter Ryan a dairy farmer in Co Wicklow about his experience with Precision Microbes unique Probiotic and Postbiotic liquid Giving the product long term 30mls daily per calf from birth through milk.
Highly palatable and mixes easily through milk.
Precision Microbe’s unique liquid probiotics and postbiotics are game changers in gut health and calf health.
Patrick white
Patrick White is a dairy farmer based in Co Offaly milking 200 cows in a spring-based system. In 2022 in the middle of a calf scour outbreak his vet recommended he try Precision Microbes to to help with recovery. He started feeding 60mls daily to calves during the outbreak and immediately could see a difference in their responses and recovery rates. He then moved to all newborn calves getting 30mls daily starting in colostrum and going for 30 days. During periods of digestive upsets topping them up with 30mls for 3-4 days.
Like many farmers, Patrick has seen Precision Microbes work with recovery but more importantly, work at prevention and support reducing gut health issues. Our gold standard calf protocol is 30mls daily per calf from birth through milk right up to weaning.
Kalinda Healy
The Healys farm in Redcross and after seeing the short term benefits of Precision Microbes calf probiotic and postbiotics they moved to long-term usage.
Giving 30mls daily in milk per calf from birth Most farmers are now feeding 30mls per calf daily right up to weaning time.
Supporting digestion, gut health and immunity.
Katie Homer
Listen to Katie Homer talk about her experiences with Precision Microbes calf probiotics and postbiotics. Fed every day from birth through milk at 30mls daily per calf.
Supporting better gut health and digestive health.
Tom murphy
Kilkenny dairy farmer sees the results short term last spring and now goes long term with PM calf with great success.
Tom Murphy, a Kilkenny based dairy farmer, and new entrant has seen the benefits of Precision Microbes calf probiotic and postbiotic liquid.
While seeing it online he used it for gut stabilization during a calf scour outbreak. With good results and a fast speed of recovery, he has now moved to more long-term usage at 30mls daily per calf for 30 days.
He still gets bits of trouble as he says himself but the recovery is much faster and they don’t get knocked back as much.
Like farmers up and down the country, he is also seeing a reduction in oral antibiotic usage on his farm. As Tom says it’s a no brainier when you think about it.
John Buckley
We visited John Buckley a dairy farmer based in Co Cork. He has seen massive benefits in calf health and gut health since he began feeding Precision Microbes long-term from birth to his calves.
He previously had issues with calves going onto milk replacer early from whole milk as part of his Johnnes control program.
The farm has seen a huge decrease in gut health issues and scours in their young calves.
John is feeding 30mls daily per calf long term. He has also added a liquid dispenser to his automatic feeding station to feed Precision Microbes through the milk for young calves.
John Wynne
We visited John last week to hear how PM is working for him. A game changer in gut health. John used our unique pro and postbiotic liquid in calves during the first 5 days on halofuginone. Like many farmers, he saw a difference in claves when they came off the probiotics. When he started back-feeding Precision Micorbes he could immediately see the difference and the positive impact on calf health and vigor. He is now feeding 30mls daily for the whole period right up to weaning. There are massive benefits to calf health on farm, and John has seen a big decrease in sick calves during the period of supplementation.
30MLS DAILY IN MILK FROM BIRTH RIGHT UP TO WEANING,
Connor creith
Connor talks about his experiences with Precision Microbes calf Pro and Postbiotics. With some minor digestive issues in young calves, Connor works with his vets at Riada veterinary hospital.
He decided to start Precision microbes 30mls daily from day 1 in young calves. He saw the difference those first 14 days and now is going to feed calves through his automatic milk-feeding system.
The big advantage for farmers with PM calf is the difference they see and by helping digestive health you can help calf health. Happy calves, happy farmers.
Elaine hickey
Elaine and Pat Hickey are dairy farmers in Co-Westmeath, they also have two farms in Roscommon. Elaine rears all the heifers on the home farm with a big interest in calf health.
She was even surprised herself at how effective PM was at helping calves recover from dietary upsets. They are now making PM part of their routine from birth to every calf and will be feeding it through the automatic calf feeder.
Michael gowing
We visited Michael Gowing to hear how long-term usage of Precision Microbes calf is working on his busy spring-based dairy farm in Co Offaly.
The dairy farmer is really focused on getting the basics right for calves.
Attention to detail around colostrum Plenty of milk to help young calves grow Plenty of straw bedding and good hygiene
Calves are also on 30mls daily of Precision Microbes through his automatic milk feeding system.
Anthony O’Sullivan
We visited Anthony O’Sullivan’s farm just outside Kanturk, Co. Cork, where we hear from both farmer and vet about how calf health and performance have improved with the use of Precision Microbes.
Anthony is an agricultural contractor who rears 100–120 calves each year in a calf-to-beef system. Eamon O’Flynn is a mixed practice vet based in Kanturk and owner of Bluepool vets, working across cattle, horses, and companion animals.
John Hourigan
We were delighted to visit Co Wicklow and the farm of John Hourigan who runs Ridgeway Wagyu.
They specialise in producing premium Irish Wagyu beef renowned for its intense marbling, tenderness and distinctive taste.
They have a big focus on animal health and performance. We are delighted to see them feeding Precision Microbes unique liquid Probiotic and Postbiotic to calves through milk.
Wendy Beaumont
Wendy Beaumont farms alongside her brother in South Shropshire, UK, where they run a beef and arable enterprise on 200 acres.
After initially being sceptical, Wendy tried Precision Microbes on calves showing signs of scour—and the results spoke for themselves. The calves recovered quickly and even chased her out of the pen for more! Since introducing the product into their automatic calf feeder, they’ve noticed calmer, healthier calves, fewer missed milk feeds, and no need for electrolytes. On their farm, Precision Microbes has earned the nickname “magic potion”—watch to find out why!
Chris Morgan
Christopher Morgan, a dairy farmer from Chester, UK, shares his experience using Precision Microbes for his calves. His family has been farming in the area since 1999, and in 2019, Christopher and his brother took over the business with a vision to grow their herd. Now milking between 150 and 165 cows year-round, they are expanding towards 200 while focusing on improving calf health and performance.
Charlotte
“Years ago, we used to use oral antibiotics for scour, and now we go straight in with Precision Microbes—and most of the time, that’s all we need.” Charlotte, Calf Rearer.
We visited Stuart Harvey’s farm in Dumfries, Scotland, to learn about its history and see how they’re using Precision Microbes. Charlotte, the farm’s calf rearer, shared valuable calf-rearing tips and explained the impact Precision Microbes has had.
Tommy Relihan
Down in Limerick, Tommy made the move from split calving to all-spring calving. To handle the pressure, he invested in a new calf shed, an automatic feeder, and added Precision Microbes into the milk.
Ben Clay
UK organic dairy farmer Ben Clay from East Herefordshire shares his firsthand experience using Precision Microbes probiotic and postbiotic for calves. After discovering the product at Dairy Tech, Ben trialled it by splitting his shed, giving Precision Microbes to the dairy heifers while the beef calves went without.
Chris Gowen
We recently visited Stowell Farms to meet with Herd Manager Chris and see first-hand how precision and performance go hand-in-hand on one of the UK’s top dairy operations.
Veterinary consultant Tommy Heffernan from Precision Microbes returned to the farm after a successful 7-week trial using our pro and postbiotic liquid on their dairy heifer calves. The results spoke for themselves: faster recovery from scour, improved feeding behaviour, and stronger overall calf health.
Chris Keyes
Chris Keyes from Armagh, Northern Ireland, shares his experience rearing calves and how Precision Microbes probiotic and postbiotic has become part of his system. Chris focuses on reducing stress for calves and farmers with a purpose-built calf shed, automatic calf feeder, and strong attention to colostrum quality.
Chris explains how Precision Microbes supports gut health, speeds up recovery when calves face challenges, and works best as a preventative tool in calf rearing. By using it through the automatic feeder, he ensures every calf gets the consistent daily support needed for immunity, growth, and resilience.
Jolene Saunders
On their family-run dairy farm in the UK, Jolene Saunders and her family care for over 280 cows. Like many dairy farmers, they’ve tried countless calf products in the past with mixed results.
But after using Precision Microbes Probiotic and Postbiotic for Calves for over a year, Jolene says the difference is clear:Calves are thriving, their coats are shiny and glossy, health issues are less frequent and when calves do go down, they recover much quicker than before.
Aidan Garvey
From touring the world with Riverdance to running a thriving dairy farm in County Armagh, Aidan Garvey has found a new stage — his calf shed.
After two years using Precision Microbes Probiotic and Postbiotic for Calves, Aidan says he “really believes in the product” and has seen fantastic results, including healthier, stronger calves and fewer issues at weaning.
John Kingham
Our vet consultant, Tommy Heffernan, was recently out with well-known suckler farmer and breeder John Kingham in the northeast. It was calving time – busy, as always – and coming off a very successful sale, there was plenty to admire in both stock and system.
John has been using Precision Microbes on-farm for over five years, first introduced by his vet Paddy McGinn. He’s seen real value in supporting gut health and recovery in young calves – it’s now a staple part of the routine at calving.
Geoff Homer
Join us on-farm at Homer Farming Ltd as we chat with Geoff Homer about how their family-run dairy and arable business uses Precision Microbes probiotic & postbiotic solutions for calves.
Who they are: Homer Farming runs three block‐calving dairy herds across multiple units, milking just under 900 cows and supported by a team of 12-13 staff. They’ve built their business on strong team dynamics, clear KPIs, and robust calves.
Malcolm Davies
Malcom has been using Precision Microbes in combination with Halofuginone for the last twelve months and it has transformed calf health.
The protocol he is using is 30ml twice daily per calf for the first 7 days while on Halofuginone then puts the calves back down to 30ml daily.
He feeds Precision Microbes through the milk from birth.
Where he does have calves with issues he doubles the dose to 30ml twice daily for a quick recovery.
Andy Yarwood
Andy Yarwood, a dairy farmer from Congleton, England, has fed his calves Precision Microbes Probiotic and Postbiotic for Calves for 10 months. He considers them essential for maintaining optimal health and promoting growth in his calves.