Research Nuggets
High-producing herds have some things in common
Research published in the February Journal of Dairy Science indicates that the feed management of high-producing dairy herds has a few things in common.
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Account for glucose when cows are heat-stressed
When cows experience heat stress, milk production goes down — everyone knows that. But much of the drop in milk production has to do with physiological factors that are independent of feed intake.
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Assess nutrition's role in reproduction
Dairy cattle reproduction is a multi-faceted challenge for farmers, nutritionists and veterinarians alike.
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McDonald's to study cow flatulence
We don't know how scientific it will be, but the McDonald's fast-food chain is reportedly investigating ways to reduce greenhouse-gas emissions from cow flatulence.
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Phosphorus in manure may increase with DDGS
Distiller's grains offer new opportunities for dairy producers. However, there is concern over the possibility of increasing the amount of phosphorus that cows excrete in manure.
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Take it slow
When it comes to weaning calves, it is better to take it slow.
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New developments in amino acid formulation
Chuck Schwab, professor emeritus at the University of New Hampshire, shared the latest developments in amino acid formulation at the Penn State Nutrition Conference last month.
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Beta-carotene supplementation provides some benefits
Beta-carotene functions separately from Vitamin A as an antioxidant and can directly enhance immunity with possible reproduction and udder-health benefits.
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When do the alarm bells go off?
It's nice to have some specific cut-points for determining a course of action. Researchers at Cornell University have come up with some for predicting metabolic disorders in fresh cows, decreased reproductive performance and lower milk production.
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Lower-starch diets an option to consider
With high corn prices, people are showing interest in lower-starch diets. But can you feed less starch and maintain a high level of performance?
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P appears to influence Ca metabolized in the bones
A high-calcium/low-phosphorus diet appears to help cows utilize dietary calcium more efficiently.
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