Basic rules:

• Limited percentage of total proteins
• Limited use of foods rich in soluble nitrogen
• Fixed product dosage
• Product selection based on nitrogen release rate (slow release preferred)
• Small doses, divided during the day

Necessity: gradual introduction of the product into the ration, satisfactory supply of energy and overall balancing. The price of soybean meal has skyrocketed, we are asking for alternative sources of nitrogen, but let's also know how we can use them without risking the health of the animals...

(source: Alimentation de la vache laitiere, R. Wolter)