Seven signals worth watching before summer bites

Summer pressures often show up through small changes: pasture quality starts to slip, feed demand begins to climb, water use increases and cows respond differently to changing conditions.

Individually, it shows up through a series of small changes across the farm system. Pasture quality starts to slip. Feed demand begins to climb. Water use increases. Cows respond differently to changing conditions.

Individually, these signals may not seem significant. But when several start moving in the same direction, they can provide an early indication of how the season is unfolding.

Farm Source Sustainable Dairying Specialist Helen Moodie says one of the biggest things she looks for heading into summer isn’t a single issue, but how different parts of the farm system are responding together.

“Summer pressure rarely arrives all at once. It’s usually a combination of smaller signals that start showing up across feed, pasture, cows, water – and don’t forget people.”

While every farm, region and season is different, these are some of the common signals worth paying attention to.
 

1. Feed position starts to look different

Feed on hand is only part of the story. As pasture growth changes, attention often turns to the relationship between feed supply, demand and the assumptions underpinning the season’s plan.

A feed budget may still look comfortable on paper, but changes in growth rates or demand can alter the outlook surprisingly quickly. Helen says the conversation is often less about how much feed is available and more about the options that feed provides.

“We’re often looking at how much flexibility a feed position gives a farm, not just how much feed is available today.”
 

2. Pasture quality becomes just as important as quantity

As summer approaches, pasture quality can become just as important as pasture cover. Balancing quality, utilisation and maintaining enough feed in front of cows can become increasingly challenging as conditions change.

Small shifts in pasture performance can influence cow condition, supplement requirements and future feed options long before they become obvious in production figures.
 

3. Cows begin providing valuable clues

Milk production is one measure of performance, but it’s rarely the only one. Changes in cow condition, grazing behaviour or overall performance can provide useful signals about how the system is responding to seasonal pressure.

Often, the earliest clues are picked up through day-to-day observation rather than from a report or dashboard.
 

4. Water moves from background to priority

Water can shift from being something that’s simply expected to something that requires closer attention. As temperatures rise and demand increases, farmers often begin assessing where potential pressure points may sit within their water system.

Availability, reliability and infrastructure capacity can all influence pasture performance, cow comfort and confidence heading into summer. Water infrastructure is one area where summer pressure can quickly show up, says Helen.

“There’s nothing like a summer drought to highlight leaks in your water reticulation system.”
 

5. Heat stress starts to influence performance

Summer pressure isn’t only about feed. Warmer weather can influence cow comfort, grazing behaviour and overall performance before more obvious impacts are seen. Reduced grazing activity, altered behaviour or changes in feed intake can all be indicators that rising temperatures are beginning to affect the herd.

“Now may be the time to review your milking timing, shade options or timing of supplementary feeding,” says Helen.
 

6. Plans and assumptions come under review

The assumptions that looked reasonable in spring don’t always look the same a few months later. Changes in feed availability, weather conditions, costs or seasonal performance often prompt a fresh look at earlier plans.

This isn’t necessarily about making major changes, but about reviewing plans to ensure they still reflect what’s happening on-farm today.
 

7. The signals start connecting

Recognising how different signals connect can help with informed decision-making on-farm. Pasture quality may begin declining at the same time as silage on hand becomes scarce. Water demand may increase as temperatures climb. Cow condition and production may start responding to those changes.

No single indicator tells the whole story.

“The clearest picture usually comes from understanding how the signals connect, rather than focusing on any one issue in isolation,” says Helen.

When pressure points are recognised early, there is often greater flexibility in how the season is managed. Not because there is one right response, but because recognising what’s changing can help keep options open.
 

Looking for a second perspective?

Every farm system is different, and the significance of these signals will vary depending on location, feed system and seasonal conditions.

If you’re starting to see some of these signals emerge on your farm, have a conversation with your trusted farm advisor, identify potential pressure points and explore the options available as the season develops.