Shanmugapriya, B.Babu, S. SaravanaHariharan, T.Sivaneswaran, S.Anusha, M.B.TANUVAS2018-04-242018-04-242015-02http://krishikosh.egranth.ac.in/handle/1/5810044519TNV_IJRSR_2015_6(2)2650-2653A trial was conducted to investigate the effects of dietary supplementations of Spirulina platensis on broiler performance, and Histopathology. Eight hundred day-old Broiler chicks (Ross 308) were randomly assigned to 1 of 4 dietary treatments, consisting of eight replicates of 25 birds each. Commercial mash starter and finisher diets were supplemented with 0%, 0.5%, 1%, and 1.5% of Spirulina platensis. The Body Weight Gain, Feed Conversion Ratio and Villi length, were significantly increased by the dietary inclusion of the 1% of Spirulina platensis as compared to the control fed broilers. In conclusion, 1% of Spirulina platensis supplementation significantly increased Body weight gain, decreased Feed Conversion Ratios and increases the villi height. The Spirulina platensis offers a good natural alternative to improve poultry production.enVeterinary ScienceArticle