Nutritional and Biochemical significant studies on Friesian diary cows productivity

Proper nutrition for diary herds assesing the high yield. Adequate crurde protein content of the dairy ration is important to maintain the high productivity. This importance is maximized if it maintain sufficient level of degradable and undegradable intake protein. Dietary calcium and phosphorus must be enough and in balanced manner to enable the high producing cows to meet their requirements for lactation and / or pregnancy. Metabolic profile results showed that reduced milk yield may be -due to failier in maintenance adequate level of certain blood constituents due to dietary insufficiency of their parent nutrients