A recent study by a research group of the University of Milan (UNIMI) aimed to answer this question. As part of Task 2.3 (Suitability of tree and shrub species for forage uses in silvoarable/silvopastoral systems for dairy production) of the Dairymix project, the group focused on agroforestry systems and their potential role in sustainable dairy farming.
Agroforestry systems can play a crucial role for promoting sustainable farming practices and increasing the circularity of livestock farms.
The study analysed the nutritional potential of the leaves from five tree species present in Northern Italy: Fraxinus excelsior L. (common ash), Morus nigra L. (black mulberry), Robinia pseudoacacia L. (black locust), Salix babylonica L. (weeping willow) and Ulmus minor Mill. (field elm).
The study assessed proximate composition, minerals and tannins composition, in vitro gas production, fermentative profile and nutritive value.
The results of the study indicated that almost all the species examined could serve as a valuable supplement to the diet of ruminants but Morus nigra standing out, for its superior nutritional value.
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The article has been published in the journal ‘Agroforestry Systems’ and is available here: https://rdcu.be/d92m4
