Chemical composition of some fodder trees in and around Calcutta.
The chemical composition (DM, crude protein, total ash, acid insoluble ash, crude fat, crude fibre and nitrogen free extract as well as calcium, phosphorus, iron, sodium, potassium, polyphenols and alkaloids) of foliage from 20 species found in and around Calcutta is presented in 2 tables. Most of the samples contained more than 20% crude protein. Some trees, such as Trema orientalis and Pongamia pinnata, were high in total ash (18.57 and 11.37%, respectively) and acid insoluble ash (11.8 and 7.34%, respectively). Polyphenols were high in Peltophorum pterocarpum and Trewia nudiflora. Overall these 20 tree leaves were considered suitable for use as a fodder for browsing herbivores.