Citation | Usman, M., S. Ashraf, M.S. Yousaf, H.I. Hussain, N. Ijaz, Q. Ullah, H. Khaliq, M. Rauf, S. Raiz, M.A. Gondal and H. Zaneb. 2026. Effect of dietary supplementation of mannan oligosaccharide on gut morphology of pre-weaning calves. Sarhad Journal of Agriculture, 42(1): 326-338. DOI | https://dx.doi.org/10.17582/journal.sja/2026/42.1.326.338