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Probiotics Supplementation for Improving Growth Performance, Nutrient Digestibility and Hematology of Catla catla Fingerlings Fed Sunflower Meal-Based Diet

Probiotics Supplementation for Improving Growth Performance, Nutrient Digestibility and Hematology of Catla catla Fingerlings Fed Sunflower Meal-Based Diet

Danish Riaz1,2, Syed Makhdoom Hussain2*, Majid Hussain3, Muhammad Zubair-ul-Hassan Arsalan4 and Eman Naeem2

1Department of Zoology, Division of Science and Technology, University of Education, Lahore, Pakistan
2Fish Nutrition Lab, Department of Zoology, Government College University, Faisalabad, Pakistan
3Department of Fisheries and Aquaculture, University of Okara, Okara, Pakistan
4Department of Life Sciences, Faculty of Natural and Applied Sciences, Khwaja Fareed University of Engineering and Information Technology, Rahim Yar Khan, Pakistan
 
*      Corresponding author: drmakhdoomhussain@gcuf.edu.pk

ABSTRACT

The use of probiotics as feed additives has been extensively explored and serves a protective function against gut pathogenic microorganisms. The purpose of this study was to examine the effects of supplementing Catla catla fingerlings fed a diet including sunflower meal (SFM) with probiotics (Protexin®) on growth performance, nutritional digestibility, and hematological indicators. Six test diets and one control diet (0 g/kg) were formulated before the beginning of the experiment, with varying amounts of probiotics (0, 0.5, 1, 1.5, 2, 2.5 and 3 g/kg) added to the basal diet. Fish growth performance, nutritional bioavailability, and hematological indices all improved significantly (p<0.05) after being supplemented with probiotics. Fish fed a diet supplemented with probiotics at a rate of 2.5 g/kg had substantial improvement in body weight (20.29 g), body wt.% (272.78 %), feed conversion ratio (1.24) and specific growth rate (1.46). At a supplementation dosage of 2.5 g/kg, the maximum apparent digestibility coefficients (ADC) were observed for gross energy (73.54 %), crude protein (74.57 %), and crude fat (77.53 %). The total quantity of RBCs, WBCs, platelets, hemoglobin (Hb), and hematocrit (Ht) all changed significantly when fish were given a probiotic dosage of 2.5 g/kg. Incorporating probiotics at a dose of 2.5 g/kg resulted in the best growth performance, highest nutritional digestibility, and best hematological indicators in the fingerlings. Finally, the optimal dosage of probiotics for supplementation was shown to be 2.5 g/kg.

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Pakistan Journal of Zoology

October

Pakistan J. Zool., Vol. 56, Iss. 5, pp. 2001-2500

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