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Potential of Phytase and Citric Acid Treated Canola Meal Based Diet to Enhance the Minerals Digestibility in Labeo rohita Fingerlings

Potential of Phytase and Citric Acid Treated Canola Meal Based Diet to Enhance the Minerals Digestibility in Labeo rohita Fingerlings

Rana Zeeshan Habib1, Muhammad Afzal1, Syed Zakir Hussain Shah2,*, Mahroze Fatima3, Muhammad Bilal4 and Syed Makhdoom Hussain5

1Fish Nutrition Laboratory, Department of Zoology, Wildlife & Fisheries, University of Agriculture, Faisalabad
2Department of Zoology, University of Gujrat, Gujrat
3Department of Fisheries and Aquaculture, University of Veterinary and Animal Sciences, Lahore
4Industrial Biotechnology Laboratory, Department of Biochemistry, University of Agriculture, Faisalabad
5Department of Zoology, Government College University, Faisalabad

*      Corresponding author: zakiruaf@gmail.com

 

ABSTRACT

Present trial was conducted to investigate the effect of phytase (PHY) and citric acid (CA) supplementation on minerals digestibility of Labeo rohita fingerlings fed on canola meal based diet. Nine experimental diets were prepared by supplementing CA (%) and PHY (FTU/kg) at the level of 0, 0 (control); 0, 1000; 0, 2000; 1.5, 0; 1.5, 1000; 1.5, 2000; 3, 0; 3, 1000; 3, 2000 respectively. Chromic oxide was used as inert marker in diets to estimate mineral digestibility. Fish fed on PHY supplemented diet showed higher apparent digestibility coefficient (ADC%) of Ca, P, Na, K, Mg, Fe, Cu, Mn, Zn. Similarly, CA addition also improved (p<0.05) ADC% of Ca, P, Na, K, Mg, Fe and Cu, however, ADC% of Mn and Zn remained unaffected. Also, acidification of PHY treated diet with CA significantly (p<0.05) improved the mineral digestibility performance of L. rohita. In conclusion, both the additives (CA and PHY) showed improved digestibility of minerals individually as well as in combination.
 

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Pakistan Journal of Zoology

December

Vol. 50, Iss. 6, Pages 1999-2398

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