F. Chen

A high proportion of the poor reside in mountainous areas in Morocco. Soil erosion caused by unsustainable land use practice has been accelerating the loss of land productivity. Technologies including remote sensing, geographic information systems (GISs), global positioning syst…

Effects of biotin, folic acid, vitamin B₁₂, choline and vitamin E on turkey breeder hens (Nicholas strain) and their progeny performance were investigated. Biotin was investigated in two experiments at two dietary levels:.178 (equivalent to NRC requirement, 1984) or.75 mg/kg in …