This video from the Mon Système Fourrager channel explains how to produce fodder (hay or silage) with a low DACA score for cows in transition. A negative DACA (anion-cation difference) score is important for the health of cows during the transition period, as it helps to avoid metabolic diseases such as milk fever.
Factors influencing the DACA score of fodder:
Plant species: some plants naturally have a lower DACA score than others. It is recommended to prefer legumes such as alfalfa and red clover, and to avoid grasses rich in potassium.
The maturity stage of the plant: plants harvested young have a lower DACA score than mature plants.
The cutting date: it is important to cut plants at the right time to maximize their mineral content and minimize their potassium content.
Fertilization: the application of potassium chloride may reduce the DACA score of fodder. It is important to fertilize grasslands with adequate doses of nitrogen and phosphorus, and to avoid applying excess potassium.
Grassland management: Good grassland management, such as rotating grazing and weed control, can also help improve the forage DACA score.
Best practices for producing low DACA fodder:
Choose fields with soil that is low in potassium.
Analyze the soil regularly to find out its mineral content.
Use plant species with a high potassium absorption capacity.
Avoid the application of excess manure or slurry.
Cut plants at the budding stage or at the beginning of flowering.
Apply potassium chloride only if necessary, and following the recommendations of agronomists.
Do fodder analyses to find out your DACA score.
By following these best practices, it is possible to produce quality fodder with a low DACA score, which will contribute to the health and well-being of cows in transition.