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Bulletin

07/08/2026

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Bulletin

07/08/2026

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Growing with Data: How Weighing Youngstock is Supporting Better 
Decisions and Improving Herd Performance

 

On the South Somerset and Dorset border, Lewis Kellaway manages two organic dairy farms, across 900 acres. With 430 Holstein Friesian cows in predominantly grass-based systems, Lewis relies on accurate youngstock weighing to monitor growth, identifying underperforming animals and make more informed management decisions to maximise growth from forage.

Growing with Data: How Weighing Youngstock is Supporting Better 
Decisions and Improving Herd Performance

 

On the South Somerset and Dorset border, Lewis Kellaway manages two organic dairy farms, across 900 acres. With 430 Holstein Friesian cows in predominantly grass-based systems, Lewis relies on accurate youngstock weighing to monitor growth, identifying underperforming animals and make more informed management decisions to maximise growth from forage.

 
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Since introducing the Tru-Test weigh system and load bars, Lewis has used accurate weighing data across both units to monitor youngstock performance and make more informed decisions around feeding, growth rates and herd management. 

 

"Identifying underperforming animals, or those with early onset subclinical diseases, allows us to segregate animals that aren't meeting the desired daily live weight gain (DLWG). We can then focus on supplementary feeding the group that requires it, rather than feeding the whole mob," says Lewis.

 

Previously, Lewis fed all dairy heifers as one group. By weighing them with the Tru-Test system, he can now identify those needing additional nutrition, helping reduce feed costs while maintaining target growth rates. 

 

"Last year, we had a high number of dairy heifers, putting us in a fortunate position to select those we wanted to retain as replacements and sell the surplus. By analysing the data collected through weighing, I was able to identify the heifers that convert grass to growth most efficiently, giving us confidence that they will go on to convert grass into milk cost effectively."

 

With accurate liveweight data from the Tru-Test weigh system and load bars, Lewis can track growth rates and make more informed decisions around nutrition, health and replacement selection, improving youngstock efficiency and herd performance. 

 

Interested in finding out more about Tru-Test weigh systems? Follow the link below to speak to a member of our team and discover how weighing can support more informed youngstock management on your farm. 

Since introducing the Tru-Test weigh system and load bars, Lewis has used accurate weighing data across both units to monitor youngstock performance and make more informed decisions around feeding, growth rates and herd management. 

 

"Identifying underperforming animals, or those with early onset subclinical diseases, allows us to segregate animals that aren't meeting the desired daily live weight gain (DLWG). We can then focus on supplementary feeding the group that requires it, rather than feeding the whole mob," says Lewis.

 

Previously, Lewis fed all dairy heifers as one group. By weighing them with the Tru-Test system, he can now identify those needing additional nutrition, helping reduce feed costs while maintaining target growth rates. 

 

"Last year, we had a high number of dairy heifers, putting us in a fortunate position to select those we wanted to retain as replacements and sell the surplus. By analysing the data collected through weighing, I was able to identify the heifers that convert grass to growth most efficiently, giving us confidence that they will go on to convert grass into milk cost effectively."

 

With accurate liveweight data from the Tru-Test weigh system and load bars, Lewis can track growth rates and make more informed decisions around nutrition, health and replacement selection, improving youngstock efficiency and herd performance. 

 

Interested in finding out more about Tru-Test weigh systems? Follow the link below to speak to a member of our team and discover how weighing can support more informed youngstock management on your farm. 

 
Find out more about Tru-Test
 
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British Dairying, Grove House Media Ltd
Priory Cottage, Eastbourne Road Ridgewood East Sussex TN22 5ST
Grove House Media Ltd is registered in England and Wales, Registration No 16722598 Us
 

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British Dairying, Grove House Media Ltd
Priory Cottage, Eastbourne Road Ridgewood East Sussex TN22 5ST
Grove House Media Ltd is registered in England and Wales, Registration No 16722598 Us