With tighter margins in the dairy industry, it’s no surprise farmers are looking for ways to cut costs, but making changes purely to save money can come with real risks.
One area producers are exploring cost-saving measures is calf feeding. Many farms have considered making the switch from milk replacer to whole milk, especially when they have non-salable milk available. But a change like this requires much more than just deciding to use the milk already in the tank. A successful switch depends on understanding volumes, dry matter, pasteurization needs and calf health monitoring. And without a solid plan, the savings that look good on paper can disappear quickly.
Whole Milk Can Make Financial Sense
According to Cassie Yost, dairy Extension educator at Pennsylvania State University, using on-farm milk can be a real advantage when the conditions are right.
“[You can] alleviate financial burdens of feeding milk replacer if you have available non-salable milk,” she notes. “Using the milk produced on the farm and saving the milk replacer bill is a financial win-win situation.
However, she stresses that feeding whole milk will not fit every operation. Facility layout, workflow, access to a pasteurizer, disease risk and calf management all play major roles.
“Each individual farm has different management styles that fit its unique operation,” she says.
No one should expect to make the change overnight or assume it will save money without first looking at the details. Farms must first evaluate whether feeding whole milk aligns with both their calves’ health needs and their farm’s management style.
Making Sure Your Calves Get the Right Nutrition
Nutrition, of course, is one of the biggest pieces of the puzzle. Whole milk is only about 13% dry matter, which means calves need enough volume each day to meet their needs. Milk replacer is fed at higher dry-matter levels to match the nutrient density of whole milk, so it is important to compare programs side by side before making any changes.
Farmers should also understand whole milk components vary naturally but not enough to cause major issues in a well-managed system. Yost points out the fat and protein in whole milk do not swing any more than the components in your bulk tank. A typical Holstein herd might test around 3.7% fat and 3.3% protein, which works out to roughly 28% fat and 25% protein on a dry-matter basis.
It is also essential to work with your veterinarian or a calf nutrition specialist when planning the switch. Having an expert guide the transition reduces risk and helps ensure the switch is truly beneficial for the calves.
Keeping Calves Safe With Good Sanitation
Health and safety are just as important as nutrition. Whole milk has to be handled with care, and farms without a strong sanitation plan should think carefully before switching. Yost stresses that skipping pasteurization is risky, especially for farms unsure of their herd health status.
“Pasteurizers can help to decrease the chance of disease transfer; however, they will not completely eliminate all disease pathogens,” she explains.
Regular testing of bacterial counts is also key because high levels can lead to scours and hurt calf performance. Timing matters as well. Milk that sits too long before being pasteurized can become unsafe. Thus, farms need reliable routines in place, or the risks can outweigh the savings.
Deciding What Works Best for Your Farm
For some operations, whole milk feeding can work extremely well. For others, milk replacer is still the more consistent, convenient and sanitary option. The most important thing is that the decision is made with intention.
“Whatever change you may decide to implement, make sure it is an economical decision that has the future of your farm in mind,” Yost says.
Switching to whole milk is not a quick fix. It takes careful planning and consistent routines to make sure calves get the nutrition they need. Farms that are ready to put in the extra effort can see benefits in both calf health and feed costs. For others, sticking with milk replacer might be the better option.
