17 Syed Makhdoom Hussain Abdullah Ijaz Hussain Nisar Ahmad Majid Hussain Danish Riaz Umar Rashid Zeeshan Yousaf Hafiza Hina Shafqat Journal of Animal and Plant Sciences JAPS 20242024/08/25 34 4 1065-1072 1018-7081 https://doi.org/10.36899/JAPS.2024.4.0788 <p>A study was carried out on&nbsp;<em>Labeo rohita&nbsp;</em>fingerlings to assess the effects of various plant oils as a substitute for fish oil (FO) for 70 days. A total of 270 fingerlings (15 fish/tank) were distributed in V-shaped tanks each with three replicates. Total six experimental diets were formed. Test diet-I (control) consisted of FO, whereas test diets-II, III, IV, and V comprised of sunflower, corn, canola and palm oils, respectively, and test diet-VI composed of mixture of all four plant oils. Results of this study showed that plant oil mixture based test diet-VI fed fingerlings showed maximum specific growth rate (1.92&plusmn;0.001), weight gain (19.16&plusmn;0.01 g) and lowest feed conversion ratio (1.32&plusmn;0.02). While test diet-IV (canola oil) showed least growth performance. The fingerlings fed with test diet-VI had maximum digestibility i.e., crude fat (CF) (82.20&plusmn;0.30%), crude protein (CP) (74.79<span lang="EN-GB">&plusmn;</span>0.14%) and gross energy (GE) (73.51&plusmn;0.21%). The lowest nutrient digestibility values for CP, CF, and GE were noticed in fingerlings fed with test diet-IV. In the case of body composition, test diet-VI showed maximum CP and ash values while having the least moisture and fat values. The outcomes of this research revealed that using plant oil mixture as a substitute for FO improved all growth parameters, carcass composition, and digestibility of&nbsp;<em>L. rohita</em>.</p> Plant oils, Fish oil, Feed conversion ratio, Crude protein, Body composition Pakistan Agricultural Scientists Forum https://thejaps.org.pk/AbstractView.aspx?mid=2023-JAPS-953