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Feed Costs Grow As Silage Shrinks

Up to 10 points - or more - of silage dry matter (DM) losses can be prevented. Avoiding silage shrink helps producers maintain available feedstuffs and retain valuable nutrients at the same time.

"When producers have preventable DM losses, thousands of dollars are being lost that could be avoided," says Renato Schmidt, Ph.D., Forage Products Specialist, Lallemand Animal Nutrition. "Conserving silage quantity and quality properly, can save producers a significant amount of money."

On average about 15 percent total DM loss is to be expected, but additional losses can be prevented through good management practices, Dr. Schmidt notes. In fact, these DM losses are made up of the more valuable nutrients such as sugars, starches and soluble proteins. This leaves a higher concentration of lower- or non-value nutrients, like fiber and ash.

"Ensuring higher silage quality by retaining more nutrients gives cattle a better overall feedstuff, which can affect gains and even health status," he says.

DM losses occur by two primary means: losses during the initial fermentation (active ensiling) and aerobic spoilage losses.

The key to reducing initial fermentation losses is to fill, pack, cover, seal quickly and use an inoculant proven to dominate the fermentation and produce a rapid, efficient pH drop. For example, using the lactic acid bacteria (LAB) Pediococcus pentosaceus 12455 - which is fueled by sugars generated by high activity enzymes - promotes a fast, efficient front-end fermentation. Promoting a fast pH drop can also help stabilize forage and reduce yeast growth, which is a major cause of silage heating.

With spoilage losses, the key is to prevent or delay the growth of yeasts, and subsequently molds, that grow when oxygen gets into the silage at feedout. Again, choosing the right forage inoculant can help: the high dose rate Lactobacillus buchneri 40788 is reviewed by the FDA and allowed to claim efficacy in preventing the growth of yeasts and molds in silages and HMC.

In a study at University of Florida, Gainesville DM loss was reduced by 4.4 percent when corn silage was treated with L. buchneri 40788 combined with Pediococcus pentosaceus and stored for nearly six months. The resulting silage also had reduced spoilage and improved nutrient retention.1

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Why Your Food Future Could be Trapped in a Seed Morgue

Video: Why Your Food Future Could be Trapped in a Seed Morgue

In a world of PowerPoint overload, Rex Bernardo stands out. No bullet points. No charts. No jargon. Just stories and photographs. At this year’s National Association for Plant Breeding conference on the Big Island of Hawaii, he stood before a room of peers — all experts in the science of seeds — and did something radical: he showed them images. He told them stories. And he asked them to remember not what they saw, but how they felt.

Bernardo, recipient of the 2025 Lifetime Achievement Award, has spent his career searching for the genetic treasures tucked inside what plant breeders call exotic germplasm — ancient, often wild genetic lines that hold secrets to resilience, taste, and traits we've forgotten to value.

But Bernardo didn’t always think this way.

“I worked in private industry for nearly a decade,” he recalls. “I remember one breeder saying, ‘We’re making new hybrids, but they’re basically the same genetics.’ That stuck with me. Where is the new diversity going to come from?”

For Bernardo, part of the answer lies in the world’s gene banks — vast vaults of seed samples collected from every corner of the globe. Yet, he says, many of these vaults have quietly become “seed morgues.” “Something goes in, but it never comes out,” he explains. “We need to start treating these collections like living investments, not museums of dead potential.”

That potential — and the barriers to unlocking it — are deeply personal for Bernardo. He’s wrestled with international policies that prevent access to valuable lines (like North Korean corn) and with the slow, painstaking science of transferring useful traits from wild relatives into elite lines that farmers can actually grow. Sometimes it works. Sometimes it doesn’t. But he’s convinced that success starts not in the lab, but in the way we communicate.

“The fact sheet model isn’t cutting it anymore,” he says. “We hand out a paper about a new variety and think that’s enough. But stories? Plants you can see and touch? That’s what stays with people.”

Bernardo practices what he preaches. At the University of Minnesota, he helped launch a student-led breeding program that’s working to adapt leafy African vegetables for the Twin Cities’ African diaspora. The goal? Culturally relevant crops that mature in Minnesota’s shorter growing season — and can be regrown year after year.

“That’s real impact,” he says. “Helping people grow food that’s meaningful to them, not just what's commercially viable.”

He’s also brewed plant breeding into something more relatable — literally. Coffee and beer have become unexpected tools in his mission to make science accessible. His undergraduate course on coffee, for instance, connects the dots between genetics, geography, and culture. “Everyone drinks coffee,” he says. “It’s a conversation starter. It’s a gateway into plant science.”