Sarker, N., Hashim, M., Ray, B. and Sarker, S. 2011. Sedation of xylazine and lignocaine with adrenaline and bupivacaine for umbilical surgery in calves. Journal of Bio-Science. 18, (Oct. 2011), 134–139. DOI:https://doi.org/10.3329/jbs.v18i0.8789.