Citation | Wahyudi, A., S. Sujono, L. Hendraningsih, A. Prima, Z.V. Gaile and I. Zekker. 2021. Effect of urea in total mixed ration and its silage on friesian holstein bull calves productivity in tropic condition. Sarhad Journal of Agriculture, 37(Special issue 1): 84-89.
DOI | https://dx.doi.org/10.17582/journal.sja/2021/37.s1.84.89