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Mike Hutjens

Dairy Extension Specialist

University of Illinois

HQ Phone:  (217) 333-1000

Direct Phone: (217) ***-****direct phone

Email: h***@***.edu


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I agree to the Terms of Service and Privacy Policy. I understand that I will receive a subscription to ZoomInfo Community Edition at no charge in exchange for downloading and installing the ZoomInfo Contact Contributor utility which, among other features, involves sharing my business contacts as well as headers and signature blocks from emails that I receive.

University of Illinois

2001 South First Street Suite 202

Champaign, Illinois,61820

United States

Company Description

The University of Illinois at Urbana–Champaign (U of I, University of Illinois, UIUC, or simply Illinois) is a public research-intensive university in the U.S. state of Illinois. A land-grant university, it is the flagship campus of the University of Illinois ...more

Background Information

Employment History

Professor of Animal Sciences and A Dairy Specialist

U of Illinois


Illinois department of animal sciences

Professor Emeritus

University of Illinois Dairy and Animal Sciences Departments


Michael F. Hutjens




University of Wisconsin - Madison

BS Degree

University of Wisconsin-Madison


University of Wisconsin - Madison

MS Degree

University of Wisconsin-Madison


University of Illinois


University of Wisconsin , Madison


University of Wisconsin - Madison

PhD degree

University of Wisconsin-Madison

college degrees

University of Wisconsin

joint doctorate degree

dairy science and nutritional science

University of Wisconsin , Madison

Web References(179 Total References)

Make forage first in the ration [cached]

In a September Hay and Forage Grower article, University of Illinois extension dairy nutritionist Mike Hutjens offered this advice:
He recommends that dairy producers and nutritionists consider using his "55-30-15" formula when balancing rations in the coming months. The 55 in the formula refers to his recommended percentage of forage dry matter in the ration. "That percentage of forage dry matter, which comes out to 28 lbs/cow/day, is what's commonly used, not only in the Midwest, but in the rest of the country, too," he says. The 30 is the percentage of concentrate and can consist of corn, barley, soybean meal, distillers grain, vitamins, minerals and maybe some fat. "With 85% of the ration locked in, producers now have the final 15%, or 7-8 lbs of dry matter, to work with, and that can fluctuate based on feed prices, quality and availability," says Hutjens. "But whatever they choose to feed, they can't break the golden rule of dairy production - never sacrifice milk production or milk components at today's prices." For high-producing cows, he recommends that some of that 15% be devoted to a nutrient-dense ingredient, in the ration such as fat, heat-treated soybean products or corn grain. But for the balance of the herd he recommends feeding more forages. "Now's the time for more forages in the ration to combat rising grain prices," he says. "Generally speaking, forages are cheaper per unit of energy or cheaper per unit of protein vs. corn grain and soybean meal in the feeding program." But he cautions that using forages to comprise that final 15% only makes good sense if they're high quality, such as corn silage with an NDF digestibility percentage in the mid-50s on a 30-hour fermentation profile and 30% starch. Alfalfa with a relative forage quality index of 150-170 qualifies, too. He says limiting corn silage to 75% of the total forage dry matter is a safe guideline. "I know of producers who feed 100% of their total forage dry matter as corn silage, but that makes me a little bit nervous." If rations are that high in corn silage, the silage must be processed - and chopped at the correct particle length. "Because some processed corn silage is not chopped correctly, it fails to maintain a rumen forage mat," says Hutjens. "And feeding that much corn silage also requires a balanced amino acid profile and balanced starch fermentation rates to avoid acidosis." If producers don't have access to high-quality forages, they could feed 2-3 lbs of moderate-quality forage along with byproduct feeds to make up the final 7-8 lbs of dry matter, he says. Depending on location, those byproducts could include soy or almond hulls, citrus or beet pulp, corn gluten feed or wheat midds. When feeding byproducts, he reminds producers and nutritionists to "monitor total NDF levels to manage rumen-fill limitations and rumen fermentable carbohydrate levels (soluble fiber, starch and sugar) to keep rumen microbial growth at optimal levels.

Cowlar - Challenges [cached]

- Michael F. Hutjens, University of Illinois

Wisconsin Agri-Business Association [cached]

Dr. Mike Hutjens - University of Illinois

MUN Testing - Minnesota Dairy Herd Improvement Association [cached]

BENEFITS OF MUN TESTING: According to Mike Hutjens of the University of Illinois, as quoted in Agriview, looking at the amount of urea nitrogen in a cow's milk can provide an accurate reflection of how much nitrogen that cow is absorbing but not using for growth or to make milk.
Most of this nitrogen comes from feed. When a cow eats too much protein, she excretes the excess nitrogen in her milk and her urine. Hutjens advised looking for answers if MUN drops or rises more than two or three points from the baseline. Hutjens sees other uses for the milk test, including the monitoring the impact of heat abatement procedures, as a predictor of acidosis, and can reveal cows that are using more energy than they are consuming early in their lactations.

management | DairyCast [cached]

Mike Hutjens, University of Illinois Extension Dairy Specialist, provides a more complete understanding of Milk Urea Nitrogen

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