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Effect of Different Dietary Protein Levels on Growth and Proximate Composition of the Eggs and Broodstock of Giant Murrel, Channa marulius (Forsskal)

Effect of Different Dietary Protein Levels on Growth and Proximate Composition of the Eggs and Broodstock of Giant Murrel, Channa marulius (Forsskal)

Muhammad Hafeez-ur-Rehman1,Farzana Abbas2,Ghulam Abbas3,*, Arshad Javid4, Ali Hussain4, Syedah Andleeb5,Khalid Javed Iqbal6 and Muhammad Akmal1

 

1Department of Fisheries and Aquaculture, University of Veterinary and Animal Sciences, Lahore, Pakistan
2Department of Zoology, University of Okara, Okara, Pakistan
3Center of Excellence in Marine Biology, University of Karachi, Karachi, Pakistan
4Department of Wildlife and Ecology, University of Veterinary and Animal Sciences, Lahore, Pakistan
5Department of Zoology, Govt. Postgraduate Islamia College for Women, Copper Road, Lahore, Pakistan
6Department of Life Sciences, The Islamia University of Bahawalpur, Pakistan

*      Corresponding author: ghulamabbas@uok.edu.pk

 

ABSTRACT

This research was performed to study the effect of different dietary protein levels on the growth and chemical conformation of broodfish and its eggs. There were three treatments (T1, T2 and T3) and a control with three replicates in each group. Control group was exclusively fed on natural food composed of tilapia fry while fish in T1 was fed on 30%, T2 on 35% and T3 on 40% protein diet, respectively. A total of 240 Channa marulius (945 g) were arbitrarily stocked in 12 earthen ponds (90 ft × 70 ft × 4 ft) @ 20 fish per pond. Fish were fed at 5% of their wet body weight two times per day. The net weight gained of broodstock was 103.65 g, 401.25 g, 484.85 g and 565.24 g in control, T1, T2, and T3, respectively. Fish in T3 yielded the highest weight, which was significantly higher than T1,T2 and control. Specific growth rates were not significant among treatments. Egg composition showed slight and statistically non-discernable variations. Same trend was observed when broodstock was subjected to analytical tests. Though there was slight increase in lipid and protein composition but statistically remained non-significant. Our studies suggest that C. marulius did respond to higher protein levels in growth and egg quality though with marginal improvements.
 

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Pakistan Journal of Zoology

June

Vol. 50, Iss. 3, Pages 799-1198

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