GIAMPIERO NISTRI

IN ITALY THE NUMBER OF LACTATION SINCE 1995 TILL 2003 HAS BEEN RIDUCED FROM 3,5 TO 2,5,IN THE SAME PERIOD THE PERCENTAGE OF COWS AT FIRST PARITY INCREASED FROM 27 TO 34[percent],AS MORE THE MILK PRODUCTION INCREASES THE STAYNG OF DAIRY COWS IN THE FARM DECREASES. THERE ARE MANY FIGURES THAT CLESARLY SHOW THIS RATIO. THE NEGATIVE ENERGY BALANCE RIDUCES FERTILITY, REDUCES LUTEINIZING HORMONE (LH), ...

THE MAJOR ROLE IN RUMINANT FEEDING IS THE QUALITY OF FORAGE THEREFORE YOU HAVE TO CHECK NDF CONTENT IN ORDER TO ESTABLISH IN A RIGHT WAY THE INGESTION OF DRY MATTER FROM FORAGE. THE NDF CONTENT IS THE KEY POINT ON WHICH YOU CAN DETERMINE HOW THE CONCENTRATE HAS TO BE DONE.