Research Nuggets
More to fat than meets the eye
Dairy cows have increased energy demands during the transition period that are not met by the diet, causing negative energy balance.
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Algae shows promise as a feed supplement
A new study from Virginia Tech looks at the use of algae as a possible feed supplement and source of omega-3 fatty acids.
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A new way to test alfalfa
The California chapter of ARPAS, in conjunction with Sapienza Analytica LLC, presented results of a study proposing a new approach to measuring pure stand alfalfa hay quality at the American Dairy Science Association annual meeting this past July in Denver.
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Fatty acids impact passive immunity
New research presented at the American Dairy Science Association annual meeting in Denver takes a look at the effect of supplementing fatty acids and the transfer of passive immunity to calves.
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How much zinc is needed in the dry period?
Required dietary zinc concentrations for dry and prefresh cows were reduced from 40 parts per million (ppm) by the NRC in 1989 to 22 to 30 ppm in 2001, depending upon age and dry matter intake.
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A look at mammary immunity
Dairy cattle are susceptible to increased incidence and severity of disease during the periparturient period.
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Iron could lower somatic cell count
A new research study published in the May Journal of Dairy Science looked at the effect of supplementing cows from 60 days prepartum through 60 days postpartum with 0 or 30 milligrams per kilogram of supplemental iron from iron amino acid complex.
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Watered-down rations result in lower intakes
Researchers at the University of Guelph recently tried to determine what happens to feed temperature, feed intake, feed sorting behavior and milk production of dairy cows when you add water to a total-mixed ration.
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Take blood samples for NEFAs after first feeding
Non-estrified fatty acid (NEFA) levels can evaluate the energy status of just-fresh cows.
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Intervention to reduce metabolic inflammation
Last August, we mentioned various nutritional strategies to help curb mastitis in dairy cows.
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Modulation of immune function through nutrition
With an electric guitar, the right modulation will help produce the right notes. Imagine how fine-tuned you are when you help a cow produce the right immune response at the right phase of the lactation cycle.
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