Abu-El-Hamd, M., Metwally, A., El-Diahy, Y., Soliman , S., & Ghazy, A. (2024). Effect of L-tryptophan on growth performance, blood parameters and immunoresponse of Friesian calves. Journal of the Hellenic Veterinary Medical Society, 75(1), 6863–6870. https://doi.org/10.12681/jhvms.32662