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Home » Authors » Mac Campbell
Mac Campbell

Mac Campbell

Dairy Specialist / Cargill
Email Mac Campbell
Articles

ARTICLES

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Now is the time to question your crowding

Current markets for milk, beef and replacements are all timely reasons to think through your overcrowding and culling decisions.
September 23, 2025
Mac Campbell and Aaron Cornman

Overcrowding is a commonly used management practice in our industry to maximize output and remain competitive, driven by economic pressures and limited space. Current heifer and beef prices and overall farm efficiency provide the opportunity to ask an important question: Do you know your farm’s optimal stocking number?


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Questions to ask your nutritionist given the current state of the dairy industry

Producers should ask themselves and their nutritionists how to be more efficient and handle supply chain disruptions given the present state of milk prices, supply chain issues and lower forage inventories.
February 3, 2023
Mac Campbell and Jay Giesy

Producers should ask themselves and their nutritionists how to be more efficient and handle supply chain disruptions given the present state of milk prices, supply chain issues and lower forage inventories.


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Questions producers should ask their nutritionists given the current state of feed inventory in the U.S.

February 23, 2022
Mac Campbell and Jay Giesy
Weather, fluctuating commodity prices and now supply chain disruptions have and will continue to present challenges for dairy producers and nutritionists when sourcing feed ingredients.
Read More

Milk fatty acid analysis: Status update for field application

May 7, 2021
Mac Campbell
Getting more milkfat has been a constant goal in our industry. Along with milk protein, fat production serves as a main driver for farm financial success and, therefore, has been a targeted topic for genetic improvement, diet formulation and dairy research.
Read More

Maximize herd potential while overcrowding: Transition cows and heifers

February 24, 2020
Mac Campbell
In our previous article, we discussed altering nutrition and management during overcrowding of lactating cows.
Read More

Maximize your herd’s potential through nutrition and management while overcrowding

February 7, 2020
Mac Campbell
As milk prices continue to squeeze the dairy industry, many producers utilize overcrowding to maximize efficiency of facilities and keep bulk tanks full. Previous work from Albert De Vries and colleagues at the University of Florida has demonstrated economic benefit to this strategy, with optimal return at approximately 120% in lactating pens.
Read More
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