Beef Nutritional Solutions

From calving through to finishing, we offer a comprehensive nutritional package that assesses the whole of your herd and aims to maximise fertility, growth rates and carcass composition, whilst ensuring effective feed conversion that is based on achieving the maximum return on investment.

We offer a full range of beef feeds including compounds, concentrates, blends and minerals. 


  • Stockman's Choice

    15 May 2020

    Feeding for Success – The new Stockman’s Choice range from Harbro We are delighted to have launched our new pedigree cattle range on 1 May, 2020, Stockman’s Choice. The range is the next generati...

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  • Sustainable approach delivers success at Kingan

    23 Apr 2020

    The Kingan family run Kingan Farms in New Abbey near Dumfries where five generations of the family have produced beef over the past 150 years. A forward thinking and dynamic business, the farm has...

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  • Reduce your cost of production

    24 Sep 2020

    Our unique additive Rumitech has been assured by The Carbon Trust to ‘significantly reduce enteric methane emissions and improve feed efficiency.' The result of this more efficient rumen environme...

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  • Utilise home grown cereals to make cost effective high performance rations

    30 Sep 2020

      With cereals looking to be plentiful this winter, Beef & Sheep Specialist Peter Oag explains how producers can cost effectively use concentrates to feed stock this winter. Concentrates ar...

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Beef Nutritional Solutions

  • Maxammon

    Maxammon is a flexible feeding system which enhances the nutritional value of grain leading to a high protein, high pH feed for improved animal performance.

    Maxammon can be added to the diet in a number of ways:-

    Treating grain at harvest time on farm – maize, wheat, barley and oats

    Treating dried or store grain on farm throughout the year

    Using Maxammon treated grain prepared industrially

    Using blended feeds or compounds incorporating Maxammon treated grain

    Harbro also offers a complete on-farm service which includes a professional and accurate processing of Maxammon.


  • Rumitech

    Rumitech is a unique feed additive that encourages a more efficient rumen environment, making more energy available by reducing methane emissions and improving rumen function.

    Since the launch of Rumitech in 2012, a number of farmers, including one of Scotland's leading beef finishers have been trialling the product and have seen some excellent results; in particular it is making significant improvements to feed efficiency and killing out percentages:

    10% improvement on feed efficiency

    25% less methane – more energy absorbed from each kg of feed

    Improved grading and killing out percentages

    5% reduced cost/kg gain


    Click here to find out about Carbon Trust assurance for Rumitech


  • On Farm Mobile Milling and Mixing

    For farmers utilising home grown cereals we offer a complete on-farm mobile milling and mixing including Maxammon processing, ammonia straw treatment and straw processing. Throughout the UK, we offer a service that is convenient, flexible and efficient.

    Depending on your requirements we have different vehicles available including Super Bruisers (30 tonnes/hour output)  and Feedmobiles (10 tonnes/hour output). 

    Using home grown ingredients also means that the feeds are fully traceable and can be developed to specific requirements. Customers can also choose to enhance rations with our range of unique feed additives, supplements and concentrates.

    Click here to find out how to best utilise your cereals to maximise performance:

Glasgow Vet School finishing performance trial

Keith and Margo Stewart, along with their sons Keith Jnr and Chae, operate Cocklarachy, a breeding and finishing unit in Aberdeenshire. The farm was originally bought by Keith’s grandfather in 1933 and has expanded over time, acquiring an additional unit to become the 600 acre site it is today. The arable side of the business is run as a mix of cropping and grass and there are currently around 900 cattle. The Stewarts do the majority of their buying in the spring, topping up in late summer, with cattle purchased from the length of Scotland from Orkney down to Newton Stewart. They operate a mixed herd, with selection criteria based on growth potential and cattle that will best utilise the current system.

On farm objectives

Their objectives on farm are to increase profit through improving the efficiency of the business to future-proof Cocklarachy and keep it within the family for generations to come. Keith Jnr tells us that their philosophy is ‘to treat the cattle well; on top of getting their feed right, ensuring they are well vaccinated and that their minerals are correct, taking care of all the small things, which when added together make a substantial difference to the performance of the cattle, which in turn translates to the profitability of the business.’

Nutritionally, the Stewarts make the best from what is grown on farm; the cattle are housed and finished mainly on grain with the spring purchased cattle turned out, then housed in July/August. They believe the higher proportion of grain being fed is a contributing factor to finishing the cattle in a shorter time frame compared to using more forage in the diet. Harbro minerals are mixed with the feed to boost the immune status of the cattle.

The trial

The Stewarts currently achieve very good performance with home grown cereals treated on farm with prograin using the Harbro Superbruiser. This ration includes pot ale, Harbro’s Grampian Beef Max and straw and is fed through the Keenan Pace system. With the availability of pot ale set to drop, they decided to look for an alternative diet.

A trial was designed and managed by Professor Nick Jonsson, of Glasgow Vet School, with Harbro as a partner, to test whether a new alternative protein source would outperform the existing system. The new ration included Maxammon treated barley, molasses and Beef Max with Yea-Sacc and Rumitech; a diet which could be described as intensive feeding. This ration was fed to half the cattle with the existing diet fed to the other. The animals were allocated to groups based on equivalence of breed, age, body condition score and liveweight.  All cattle were subject to the same animal health management and were weighed at the beginning of the study, half way through, and at 90 days, just prior to slaughter. They were observed fortnightly during the trial with measured variables including: indices of animal health (lameness, diarrhoea and pneumonia); daily liveweight gain, days required to finish cattle, proportion of animals meeting specifications, cost of ration and rumen analysis.

David Mackenzie, head of Beef and Sheep at Harbro said that the trial presented a challenge for Harbro, as ‘the Stewarts have been cattle specialists for generations, focussed on getting the best performance from their stock to fit the market requirements, and are already at the top end of what you can achieve.’

The results

Click here to view Nick Jonsson discussing the trial results  




Kg feed/head/day



Average Daily Liveweight Gain



Feed Conversion Rate



Average Liveweight at 90 days



Count ADG ≤ 1.2 kg/day



Scour count




The trial came to its conclusion in November 2017 with the cattle weighed and sent to slaughter over a period of just a few weeks. Final recordings were taken and samples of the rumens studied to analyse any contribution the ration had made. Nick Jonsson commented that the trial was one of the best he had seen, not only for the way it was administered and managed on farm including the collation and analysis of a wealth of data but also due to the sophistication of the Stewarts’ handling and weighing facilities and the farm’s attention to detail. “Even on this already high performing farm, the ration, which includes Maxammon as well as Rumitech, has had a significant effect on feed conversion efficiency during the feeding period (Maxammon: 7.16, Prograin: 8.02.)”

Of particular significance were the stats relating to:

  • Improved ADG (average daily gain):  Maxammon: 1.81kg / Prograin: 1.67kg
  • Better feed conversion Maxammon: 7.16 / Prograin: 8.02
  • Tighter distribution, fewer animals below target weight.

Maxammon group: only 2% didn’t achieve better than 1.2kg/day.

Prograin group: 12% were performing at less than 1.2kg/day.

  • Improved scour count.

Maxammon group: only 3% had diarrhoea, prograin group: 18%.

  • Higher proportion of better grades in the Maxammon groups.

From the farm’s perspective, the Stewarts commented that they were delighted with the end results which saw impressive increases in daily gain as well as a substantial lift to the bottom third with cattle reaching carcass weight at least 20 days quicker than expected.

Looking to the future, Maxammon and Rumitech look to be important components of the nutrition at Cocklarachy, combined with a data driven approach to analyse performance on farm as they strive to increase performance even further.

Pictured Professor Nick Jonsson from Glasgow Vet School with Chae & Keith Jnr 

  • Energyze Easy Calver

    Energyze feed buckets are created from a carefully formulated blend of sugar cane molasses and quality proteins. Fortified through the inclusion of key minerals, trace elements and vitamins, they provide a palatable source of essential nutrients and a boost of instant energy in convenient molassed lick.

    For pre-calving/dry cow:-

    • Reduced calving problems
    • Enhanced calf vitality, thriftiness and survival 
    • Enhanced cow fertility, colostrum quality and milk production 
  • Grampian Super Suckler SEC

    Using the latest nutritional advances our team of nutritionists have developed Super Suckler, which has been formulated for pre and post calving with three core objectives to help improve the performance of the suckler herd:-

    • Maximise health and fertility
    • Boost calf vitality
    • Help to prevent grass staggers

    Available as powdered mineral or bucket

    Grampian Super Suckler - MORE INFORMATION