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Substitution of Fish Oil with Selected Dietary Oils: Effects on Growth Performance, Nutrient Digestibility and Body Composition of Catla catla Fingerlings

Substitution of Fish Oil with Selected Dietary Oils: Effects on Growth Performance, Nutrient Digestibility and Body Composition of Catla catla Fingerlings

Syed Makhdoom Hussain*, Hafiza Hina Shafqat, Muhammad Faisal, Mahnoor Saleem, Zeeshan Yousaf and Muhammad Amjad

Fish Nutrition Lab, Department of Zoology, Government College University, Faisalabad, Pakistan.

 
* Corresponding author: drmakhdoomhussain@gcuf.edu.pk

ABSTRACT

A feeding trial of 70-days was conducted on Catla catla fingerlings (average weight 6.73±0.04). Total six experimental diets were formulated containing levels I (control), II, III, IV, V and VI. Diet I constituted fish oil (FO), while diets II, III, IV, V and VI were composed of palm oil, corn oil, sunflower oil, canola oil and mixture of all mentioned vegetable oils respectively. Triplicate tanks were used and every tank had 15 fingerlings. Results demonstrated that significant (p<0.05) improvement in growth performance i.e. weight gain % (WG %) (210.48), minimum feed conversion ratio (FCR) (1.11) and maximum specific growth rate (SGR) (1.61) of fingerlings were noted when fed with test diet-VI-based on plant mixture oil. When compared to a control diet (0%) and other oil based experimental diets, such results were significantly different. While minimum growth i.e. WG % (148.13), maximum FCR (1.43) and minimum SGR (1.29) was noted when fingerlings were fed with test diet-IV. In the current study, the best digestibility results of crude fat (CF) (81.25%), crude protein (CP) (69.39%), and gross energy (GE) (71.74) were seen in VI-level diet and these results were statistically (p<0.05) different from all other test diets. However, the test diet-IV had the least digestibility value of nutrients, including CF (73.55%), CP (49.17%) and GE (65.96%). It was concluded that C. catla fingerlings showed improvement in growth performance, nutrient digestibility and body composition when fed plant mixture oil based diet.

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Pakistan Journal of Zoology

June

Pakistan J. Zool., Vol. 56, Iss. 3, pp. 1001-1500

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