The latest HerdPlus Dairy Co-op Performance reports are now available for viewing online under the reports section. 

The report combines milk supply data from the various Co-ops with the herd data from the ICBF data-base including information such as cow numbers, calving dates and EBI information.

The Co-op performance report is designed to highlight an individual herd’s performance at different stages throughout the year. Farmers can benchmark their herd’s performance against the average and top 10% within their Co-op. Herds are ranked accordingly to indicate their position.

Please note: Herds are compared with other herds of the same milk type i.e. Creamery, Liquid and Winter.

The Co-op performance report gives an excellent overview for farmers of their production and fertility performance along with the genetic merit of their herd. It also allows them to compare their performance and benchmark their performance against other herds across numerous key performance indicators (KPI’s).

The Co-op performance report is highly sought after by financial institutions when farmers are applying for loans. Generally, financial institutions will request the Co-op performance report for the previous 3 years. (Historic reports can be accessed at any stage online at

The report is broken down into 3 main areas for analysis of on-farm performance.

  1. Milk Production
  2. Herd Fertility
  3. Herd Genetic

Milk Performance

Litres per cow/day

This is the average litres of milk supplied on a per cow basis. To calculate this figure, we use the following method:

Total litres/number of months/sub-total of total cows=litres per cow per day.

These figures can help farmers evaluate their herds performance compared to other herds and identify areas for improvement in their milk production.

To ensure the accuracy of the ‘Total Cow’ figure, farmers should record dry offs and where applicable mark for culling. This will more closely reflect what the supplier is seeing in the parlour.

Fat & protein %

To calculate the fat and protein %, a weighted average is used. In an A+B-C payment system fat and protein are both crucial to maximising the milk price farmers received.

Fat + protein (kg/cow)

The following method is used to calculate the fat and protein kg per cow:

  • Total litres of milk x 1.03 (this converts litres to kilograms)
  • Total kgs x fat % = kgs of fat
  • Total kgs x protein % =kgs of protein
  • Total kgs fat + total kgs protein/ total cows = total fat & protein kg per cow

Delivering as many milk solids as possible per cow is a key driver of profitability in spring calving grass-based systems.

Herd Fertility

Calving interval (days)

This is the average number of days between successive calvings. The national target is to achieve a 365- day calving interval so cows calve on the same day every year to maximise reproductive efficiency.

Spring 6-week calving rate

This relates to the number of cows who calve in the first 6 weeks as a proportion of all cows that calve in the spring. It has been recommended in Ireland that farmers should target a 90% 6- week calving rate as this syncs the calving spread to the grass growth curve with the aim of maximise the amount of milk produced off grass.

% AI Bred Replacements

This is the number of female calves born from dairy AI as a percentage of all cows calved.

% of Heifers calved at 22-26 Months

This is the percentage of heifers that calved between 22-26 months of age as a proportion of all the heifers. Research has clearly shown that heifers that have calved at this age are more profitable in their lifetime then animals that calve for the first time at older ages. For more information on this, check out recent research conducted in 2019.

Herd Genetics

EBI Statistics

The EBI of the herd represents the profitability of the herd above the base. By increasing the EBI of the herd it will in turn help drive profitability. Research suggests a 1 euro increase in EBI can result in a 2 euro increase in profit.

See below for up to date EBI statistics in the National Herd as of the January 2020 evaluation.

EBI Inseminations

This is the average EBI of the team of bulls used by the farmer. Farmers should aim to use a team of bulls with a higher EBI than the herd. Using a team of High EBI bulls will drive genetic gain within the herd. This can be maximised by selecting young high EBI genomic sires, it is important to select a team of bulls as this will spread the risk.

Milk production and reproductivity efficiency are crucial to profitability and the co-op performance report can be used to help farmers assess how they are performing as well as highlighting areas for improvement.

All of the end of year reports for 2019 are now available online and are being posted to farmers. Please call the HerdPlus office on 023 8820452 with any queries or email [email protected]