Today's high yielding cow is commonly accepted to be less fertile and more susceptible to metabolic and infectious disease than her ancestors. It is important that we look at the logic and fact behind this, says John Newbold and reflect on some of th...

25 oct 2006

To make systematic rather than empirical improvements in increasing the efficiency, we need to adequately define the requirements of the high yielding dairy cow and to match them with a corresponding supply. Because the supply of protein to the dair...

01 oct 2006

Oxidative stress occurs when the production of reactive oxygen metabolites (rom) exceeds the capacity of the antioxidant system of the cell. Proper supplementation of antioxidant nutrients can reduce the prevalence and severity of mastitis and help ...

01 aug 2006

Vitamin A appears to be a critical aspect of feeding forage to ruminants. There are a number of factors to be taken into account to ensure that ruminants can best utilise such a valuable resource from forage.

01 apr 2003

The economic benefits of proper vitamin nutrition in dairy cows, above those supplied for normal metabolism include increased milk production, reduced prevalence of mastitis, improved reproduction, reduced occurrence of milk fever and improved hoof h...

01 dec 2002

A year ago, Bravo et al. reported in Feed Mix a new technique available to ruminant nutritionists to better predict phosphorus partitioning in the ruminant. Dr. Bravo and Dr Bogaert return this year to explain a new concept from INZO° (formerly UCAAB...

01 aug 2002

Jargon like "chelation, bioavailability, magic bullet” and so on often makes proper understanding of true mineral nutrition more difficult than it needs to be. Regardless, feeding of minerals has extreme importance in the maintenance and production ...

01 apr 2002

As the BSE hysteria calms, some of the quieter voices are still audible. These are offering alternative explanations for the cause of the epidemic. Though research is still in its infancy, Czech scientist Dr Josef Hlásny firmly believes that scrapie...

01 apr 2002

Grazing is a valuable, low cost resource for feeding high-yielding dairy cows. However, the balance between providing sufficient energy and managing grassland is delicate. Full exploitation of grazing systems to maximise milk yield requires that con...

01 sep 2001

Supplying dietary phosphorus to ruminants can be a wasteful business. We need to have better knowledge of how much dietary P from feedstuffs is available to the rumen, so that it contributes more to the animal and less to environmental pollution. Ne...

01 jun 2001