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UK beef producers utilising Stabiliser genetics in their breeding programmes now have access to £Profit Index, a data backed genetic selection tool weighing 15 economically relevant traits (ERTs) against each other for maximum profitability.

“For most traits, maximum profitability typically happens at optimal levels – not maximum levels,” explains United States beef specialist Lee Leachman of Leachman Cattle of Colorado and developer behind £Profit Index, Stabiliser Cattle Company’s (SCC) newest genetic selection tool.

Finding middle ground to hit those optimal trait levels is one of the most complicated components of making genetic selection decisions with EBVs since heavier emphasis in one direction can have an adverse knock-on effect to another.

“Look at growth, for example,” explains Leachman. “Increasing it can be worth a tonne of money, but eventually too much will have a negative effect due to costs associated with overweight carcase docks, fertility issues, dystocia and the amount of feed it takes to maintain bigger cattle.”

According to Leachman, £Profit Index, a simulation model which accurately weighs ERTs against each other in projected market conditions, greatly simplifies genetic selection by giving producers a single £Profit figure to represent how profitable an animal will be during its production lifetime.

“Based on data collected from the UK beef industry, £Profit Index assumes one bull will sire 140 calves in his lifetime and that 30% of these calves will be kept as replacements, and the remaining 70% will be finished to slaughter on farm. These assumptions are used to weigh the relationship between ERTs and associated farm costs such as pasture, feed and premiums/discounts associated with the EU’s carcase grading scheme and associated payments to farmers.”

To put it into practice, if one sire has a £Profit Index of £10,000 and another has a £Profit Index of £6,000, the model predicts a lifetime advantage of £4,000 from the higher bull.

Breeder advantage

According to Richard Fuller, Business Director of SCC, £Profit Index is a step forward in SCC’s genetic development to bring more profitable and efficient cattle to the UK marketplace.

“The £Profit Index is an advanced and unique multi-trait genetic selection tool that will really drive the profitability of the whole Stabiliser population in the UK. This is a very positive move for the UK beef industry with the ability to select the most profitable animals for their breeding herds backed by data – increasing genetic accuracy” says Fuller. “It also opens the door for UK beef producers to make genetic comparisons between cattle from three different countries, with more than 1 million animals in Australia, New Zealand and the USA on the database.”


  • Economically relevant traits included in £Profit Index: Calving ease, birth weight, weaning weight, 400-day weight, carcass weight, milk production, cow feed intake, cow size, cow fertility, scrotal circumference, feed conversion, average daily gain, muscle yield, fat depth and marbling.
  • SCC breeders have had access to £Profit Index since December 2017.
  • At the beginning of 2017, SCC launched an Estimated Breeding Value for Net Feed Efficiency, allowing producers to adopt breeding strategies to reduce feed costs while also improving their environmental credentials through lower greenhouse gas emissions.



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