Receptors make dairy cows a prime target for influenza, ISU team finds

AMES, Iowa – As highly pathogenic avian influenza has spread in dairy herds across the U.S., the virus is being detected in raw milk. A new study by a broad team of researchers at Iowa State University’s College of Veterinary Medicine helps explain why.

Sialic acid, a sugar molecule found on the surface of some animal cells, acts as a receptor for influenza. Without sialic acid providing an entry point to attach, invade and infect, a flu virus is unlikely to find a potential host hospitable.

Before the recent HPAI outbreak in dairy herds, there was scant research into sialic acid levels in the mammary glands of cattle. Scientists had no reason to suspect the milk-producing organs would be a good target for influenza.

“In livestock, we hadn’t usually looked in milk for viruses. Bacteria, sure. But not so much viruses,” said Dr. Eric Burrough, professor of veterinary diagnostic and production animal medicine.

A team of Iowa State researchers who examined mammary gland samples from two infected cows found a rich supply of sialic acid, which could shed light on how the virus attaches to hosts and help develop measures to slow the illness’ spread.

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Forage Field Day Set For August 6

I-29 Moo University, SDSU Extension, University of Nebraska-Lincoln Extension, and the Northern Plains Forage Association will co-host a field day for forage producers. I-29 Moo University includes dairy specialist from Iowa State University Extension, Minnesota Extension and South Dakota Extension.

Forage Field Day is a regional event that brings together experts, producers, and industry professionals to provide field tours, panel discussions and presentations on forage-related topics.

The 2024 Forage Field Day is from 9:15 a.m. to 3:30 p.m. on Aug. 6 at the Haskell Ag Lab in Concord, Nebraska. Check-in begins at 8:45 a.m. Registration is required. To register, click HERE.

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“Best of” Four-State Dairy Nutrition and Management Conference recordings available

If you missed the Four State Dairy Nutrition and Management Conference in June, there’s still an opportunity to hear all the plenary speakers by registering for the recorded “Best of” 2024 conference offering. This includes all the plenary sessions including the pre and post conference. All discussion is also included.

Just a few of the nationally renowned speakers included:

·     Mark Hanigan, Virginia Tech – Amino acid bioavailability.

·     Alex Hristov, Penn State University – Histidine as a limiting amino acid

·     Jose Santos Protein nutrition in transition cows.

·     Mike VandeHaar, Michigan State – Feeding and managing cows for a healthy productive life.

·     Bill Weiss, Ohio State- Feeding so cows reach higher peaks.

·     Rick Grant, Miner Institute – Optimal corn silage alfalfa ratio.

·     Kevin Harvatine, Penn State -Driving milk fat synthesis by promoting good rumen fermentation.

·     Adam Lock, Michigan State – Driving milk fat synthesis by feeding preformed fatty acids.

·     And many more

We hope that you consider this opportunity if you couldn’t attend the live program.

Access to the recording will remain active until December 1. Just go to fourstatedairy.org to view the entire program. Click on the registration tab to register. After registering, you will be emailed instructions within 48 hours on how to access the virtual program.

This is a collaborative effort of Extension Services of Iowa State University, University of Illinois, University of Minnesota and University of Wisconsin.

Questions? Contact  salfe001@umn.edu or 612.360.4506

Global Dairy Trade Event 358 concluded with the GDT Price Index down 0.5%

Key Results*

AMF index down 1.2%, average price US$7,317/MT (€6,830/MT)
Butter index up 6.2%, average price US$7,350/MT (€6,861/MT)
BMP index not available, average price not available
Ched index down 1.0%, average price US$4,205/MT (€3,925/MT)
LAC index up 1.9%, average price US$801/MT (€748/MT)
MOZZ index not available, average price not available
SMP index up 0.7%, average price US$2,766/MT (€2,582/MT)
WMP index down 2.5%, average price US$3,394/MT (€3,168/MT)

Full results have been published on www.globaldairytrade.info/en/product-results/.

April Milk In Iowa was Down From 2023

The average price received by farmers for corn during April 2024 in Iowa was $4.50 per bushel according to the latest USDA, National Agricultural Statistics Service – Agricultural Prices report. This was 7 cents above the March price but $2.25 below April 2023.
All hay prices in Iowa averaged $169.00 per ton in April. This was $11.00 above the March price but $10.00 below the April 2023 price. The April 2024 alfalfa hay price, at $177.00, was $13.00 above the previous month but $6.00 below April 2023. The average price received for other hay during April was $149.00 per ton. This was $10.00 above the March price but $19.00 below April last year.
The average price for milk was $19.00 per cwt, 10 cents below the March price and 50 cents below April 2023.

Global Dairy Trade Event 357 concluded with the GDT Price Index up 1.7%

Key Results*

AMF index up 0.9%, average price US$7,417/MT (€6,827/MT)
Butter index up 1.7%, average price US$6,864/MT (€6,318/MT)
BMP index up 10.4%, average price US$2,845/MT (€2,619/MT)
Ched index up 0.2%, average price US$4,248/MT (€3,910/MT)
LAC index down 1.9%, average price US$792/MT (€729/MT)
MOZZ index not available, average price not available
SMP index up 3.0%, average price US$2,722/MT (€2,505/MT)
WMP index up 1.7%, average price US$3,478/MT (€3,201/MT)

Full results have been published on www.globaldairytrade.info/en/product-results/.

Global Dairy Trade Event 356 concluded with the GDT Price Index up 3.3 Percent

Key Results*

AMF index up 3.5%, average price US$7,365/MT (€6,781/MT)
Butter index up 5.1%, average price US$6,931/MT (€6,381/MT)
BMP index not available, average price not available
Ched index unchanged, average price US$4,239/MT (€3,903/MT)
LAC index up 8.1%, average price US$795/MT (€732/MT)
MOZZ index up 9.8%, average price US$4,215/MT (€3,881/MT)
SMP index up 3.5%, average price US$2,629/MT (€2,421/MT)
WMP index up 2.9%, average price US$3,408/MT (€3,138/MT)

Full results have been published on www.globaldairytrade.info/en/product-results/.

Midwest’s Premier Dairy Nutrition and Management Conference set for June 5 and 6

Learn the latest information in dairy nutrition and management by attending the 2024 Four-State Dairy Nutrition and Management Conference on June 5 and 6 at the Grand River Center in Dubuque, Iowa. This premier conference will feature the latest information to improve productivity and profit.

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March Milk Production Up 2 Percent YOY

Milk production in Iowa during March 2024 totaled 520 million pounds, up 2 percent from the previous March according to the latest USDA, National Agricultural Statistics Service – Milk Production report. The average number of milk cows during March, at 242,000 head, was unchanged from last month but up 2,000 from March 2023. Monthly production per cow averaged 2,150 pounds, up 20 pounds from last March.

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Iowa Dairy Farmers, Poultry Producers Encouraged to Remain Vigilant Against Threat of HPAI

Iowa Department of Agriculture and Land Stewardship is closely and continually monitoring the evolving situation, while reminding consumers that pasteurized milk and dairy products are safe to enjoy

The Iowa Department of Agriculture and Land Stewardship today provided an update on the continually evolving situation regarding the spread of Highly Pathogenic Avian Influenza (HPAI) in dairy cattle and poultry flocks in other states, strongly encouraged both dairy farmers and poultry producers to heighten their biosecurity protocols and practices, and reminded consumers that pasteurized milk and dairy products are safe to enjoy.

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