5 mindset shifts for raising resilient calves
Metabolic programming, combined with targeted nutrition strategies, is helping producers raise healthier and more resilient calves, optimise care, and improve returns.
Calf nutrition continues to evolve year after year. Insights from more than a decade of metabolic programming research on youngstock are reshaping how dairy farmers approach calf care. When combined with precision nutrition strategies, this research is helping producers raise calves that are not only healthier in the short term but also more productive and resilient throughout their lives. What’s emerging is a clear shift in mindset focused on long-term performance, sustainability, and smarter stewardship.
From restrictive to abundant feeding
New research builds on years of studies demonstrating how early-life interventions influence long-term performance. For example, findings from a long-term study in which calves were monitored up to their fifth lactation as dairy cows show that restricted feeding can compromise not only a calf’s development but also impact its long-term performance. Pressure to elevate animal welfare practices has also helped prompt a shift away from the industry’s widespread use of restrictive access feeding.
Early-life nutrition
A growing body of evidence supports the benefits of applying an abundance mindset to early-life nutrition. Calves fed a higher milk volume reach breeding size and maturity faster, thereby lowering the breeding age and rearing costs. Additionally, this increase in milk intake has a beneficial ripple effect throughout a cow’s life.
Impact on milk production
A meta-analysis of 12 independent studies found that for every additional kilo of average daily gain before weaning, a heifer produces 1,500 more kilos of milk in her first lactation. That growth leads to heavier calves and supports better udder development, earlier breeding, and improved lifetime production.
Higher volumes improve development
Data supports the benefits of calves consuming higher volumes. A decade-long study tracked calves fed either 4L/day or 8L/day of milk replacer during their first 49 days. Calves receiving higher volumes showed improved development, greater lifetime milk yield, and a 50% reduction in culling before third calving.
Long-term lactation benefits
Benefits extended into the second lactation, with enhanced feed efficiency and leaner body composition — suggesting more effective fat mobilisation. These findings highlight early nutrition as a key driver of metabolic programming and herd longevity.
Early feeds as investment
With the opportunity to improve both animal health and performance, producers are viewing early feeding as an investment, not an expense, with lasting returns starting in the first few weeks of life.
With the opportunity to improve both animal health and performance, producers are viewing early feeding as an investment, not an expense, with lasting returns starting in the first few weeks of life.”
Rethinking fat: Tailoring the fatty acid profile
Bovine milk is a complex nutritional system. The fat it contains is more than just energy for calves, as it transmits signals that trigger physiological and developmental processes in the animal’s rumen.
Fatty acids
With over 400 unique fatty acids, milk contains a range of bioactive compounds that calf milk replacers (CMRs) have only partially replicated. As researchers compare whole milk to CMRs, it’s becoming clear that how we’ve been formulating and feeding CMRs over the last few decades needs to evolve.
Role of butyric acid
One key fatty acid is butyric acid, a short-chain fatty acid synthesized in the cow’s mammary gland. Research shows that butyrate plays a pivotal role in early calf development. It initiates gut maturation, enhances villus growth, stimulates digestive enzyme activity, and even supports rumen development, giving calves a head start on solid feed intake and easing the transition at weaning.
Mimicking whole milk function
Impactful fatty acids, such as butyrate, are identified using metabolic screening technologies and applied in a first-of-its-kind calf milk that more closely mimics the composition and function of whole milk.
Minimise mineral waste with precision supplementation
Providing calves with the right minerals is essential, but more isn’t always better when it comes to trace mineral supplementation. Traditional calf diets often include high levels of trace minerals to guarantee availability, even though these levels far exceed what’s naturally found in cow’s milk. Oversupplying minerals can drive up feed costs and lead to excessive accumulation in the animal’s tissues, potentially leading to toxicity issues. Excess minerals can also be excreted into the environment.
By using more bioavailable forms, like organic trace minerals that are easier for calves to absorb, nutritionists can meet the animal’s needs more precisely, reduce waste, and support both calf health and environmental stewardship.
Early immune development is key, and research is shifting the focus from treating illness to achieving more resilient animals.”
Not just treating illness, but building resilience
The gut is a critical starting point for achieving a more resilient dairy cow. Early immune development is key, and research is shifting the focus from treating illness to achieving more resilient animals.
Phytogenic ingredients selected by Trouw Nutrition’s phytogenic scientists and included in a novel calf milk present a natural approach to stimulate gut health in younger calves. Such ingredients enable calves to naturally defend against pathogens without the need for treatment interventions.
These natural compounds derived from plants help calves cope with stress, weaning, and parasitic infections. This activation of the calf’s natural defences during critical early stages helps them develop stronger immunity from the start.
Turning insights into on-farm gains
These mindset shifts aren’t just theoretical; they’re changing outcomes on the dairy farm, including how calves are nourished. A combination of specific fatty acids and essential trace minerals that mimics whole milk allows a novel calf milk to cue the rumen for earlier development and empowers calves with the ability to start on solid feed earlier.
The benefits of investing in early nutrition show up on the farm and in the animal. Farms that nourish calves with a calf milk that incorporates metabolic programming and precision nutrition report higher starter feed intake, reduced diarrhoea, and fewer veterinary interventions. Accelerated growth is helping calves reach breeding weight up to 3 weeks earlier, which improves survival rates and shortens the path to productivity. All of these improvements support enhanced efficiencies on the farm.
By aligning early nutrition with metabolic needs, farmers can manage calves more efficiently and achieve a greater long-term return on their nutrition investment. These gains aren’t just about raising healthier animals but improving the overall profitability and sustainability of the entire dairy operation.
As LifeStart research continues to uncover how nutrition shapes metabolism and resilience, producers and nutritionists have improved tools to rethink what’s possible in the first months of a calf’s life and ultimately invest in the future of their herds.
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