Research Nuggets
Advice for setting MUN targets
People pretty well agree that an “acceptable” milk urea nitrogen level is in the 11 to 15 range. But there can be variation between herds and within herds.
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More research needed on CLA-fortified milk
There have been discussions over the years whether the diets of cows can be enhanced to encourage production of conjugated linoleic acid, which has health benefits for consumers.
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Effect of linoleic acid and dietary vitamin E supplementation
Conjugated linoleic acid, a bioactive fatty acid (FA) found in milk and dairy products, has potential human health benefits due to its anticarcinogenic and antiatherogenic properties.
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Oral calcium bolus supplementation on early-lactation health
The objective of this study was to evaluate the effect of supplementation with oral Ca boluses after calving on early-lactation health and milk yield.
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Cow and herd variation in milk urea nitrogen concentrations
Milk urea nitrogen (MUN) is correlated with N balance, N intake, and dietary N content, and thus is a good indicator of proper feeding management with respect to protein.
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Extra trace minerals may pay big dividends for early-lactation co
Hypocalcemia, immunosuppresson, negative energy balance ― they’re all part of the early-lactation experience. But what about trace mineral deficiency? Do early-lactation cows experience this problem, as well?
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A potential cost-savings
When profit margins get tight, it’s not uncommon for dairy operations to look for opportunities to cut costs.
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Yeast-derived protein as a substitute for soybean meal
Everyone knows about the high cost of soybean meal.
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What causes heifer weights to be so variable?
Canadian researchers took a look at just how variable heifer growth rates are between farms.
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The power of meta-analysis
In the January 1998 issue of Dairy Herd Management, an initial effort was made to show the positive benefit of yeast culture on milk production.
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Soybean meal substitution with a yeast-derived microbial protein
The objective of this study was to examine the effects substituting soybean meal with a yeast-derived microbial protein on rumen and blood metabolites, dry matter intake and milk production of high-producing dairy cows.
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