بررسي اثر مراحل فنولوژيكي بر كيفيت علوفه گونه هاي VICIA TETRASPERMA)L(. SCHREB و TRIFOLIUM REPENS L.

Forage quality information is important for determination of grazing. Forage quality affected by location and phenological stages. Different factors influence on forage quality phenological stages specially flowering and seeding times are one of the most important factors affecting forage quality. In present study, forage quality of two important legume species of Mazanderan lowland were considered namely Trifoliom repens and Vicia tetrasperma. In this experemint crude protein (CP), total energy (TE), crude fiber {CF), neutral detergent fiber (NDF), acid detergent fiber (ADF) and dry matter digestibility (DMD) were measured using invitro procedures. Data were analysed using one way and Duncan tests, the results showed that in both species forage quality in flowering stage was higher than seeding stage. In spite of no different between CP and TE of species but NDF and CF were higher in V. tetrasperma. So it will cause higher quality of Jr. repens forage compare with forage quality of V. tetrasperma. The reason in higher amount of leaves in forage of Tr. repens.