Research Nuggets

Meta-analysis of trace minerals

A number of studies have been conducted on organic trace minerals in dairy cow rations. FULL STORY »

Potassium carbonate can help boost milkfat

Potassium appears to influence biohydrogenation in the rumen, which, in turn, affects milkfat synthesis. FULL STORY »

Different strokes for different yeast

Can yeast mitigate heat stress in cows? It depends on the type of yeast being used. FULL STORY »

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. FULL STORY »

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. FULL STORY »

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. FULL STORY »

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. FULL STORY »

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. FULL STORY »

A look at mammary immunity

Dairy cattle are susceptible to increased incidence and severity of disease during the periparturient period. FULL STORY »

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. FULL STORY »

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. FULL STORY »

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