N.P. Achi*1, J.N. Achi2, I. Mallam3 1Dairy Research Programme, National Animal Production Research Institute/Ahmadu Bello University, Shika, Zaria 2Department of Agricultural Education, School of Vocational Studies, Nuhu Bamali Polytechnic, Zaria 3Department of Animal Science, Kaduna

H. Al-Ahmed, R. Mahood, G. Bonev, S. Georgieva Abstract. The aim of this experimental study was to assess the effects of antioxidant (Salvia officinalis L. extract) on fertilized percentage of sperm. Ability and efficacy of treated sperms by two methods of fertilization (IVF and ICSI)