Effects of Different Types of Oils on Growth Performance, Survival and Carcass Composition of Nile Tilapia (Oreochromis niloticus)

Abstract

The study evaluated the growth performance, survival and body composition of Oreochromis niloticus fed isonitrogenous (25%) and isocaloric (186 cal/kg) diets containing different types of oils (fish oil (FO) and vegetable oils (VO) (Soybean oil (SO) and Peanut oil (PO)) at 6% level for a period of 42 days. Significant difference was observed in the body weight gain (WG), specific growth rate (SGR), feed conversion ratio (FCR) values, body protein and lipid content.The diet E containing a mixture of vegetable oils in equal proportions (1:1) produced the best results WG (413.25%), SGR (3.86) and FCR (1.37), whereas the diet B (75% FO + 25% VO) showed the poorest performance WG, FCR and SGR. The survival rate ranged from 55 to 100%, being 55% for C (50% FO+ 50%VO), 65% for A (100% FO) and 100% for B (75% FO+ 25%VO), D (25% FO+ 75%VO) and E (100%VO). The type of dietary lipid significantly affected the body composition of fish. Fish fed on diets B (75% FO+ 25%VO), C (50% FO+ 50%VO), E (100%VO) presented the highest body protein content compared to initial fish. The highest body protein content was obtained in the fish fed on diet B (75% FO+ 25%VO). There was no significant difference in the body protein content of fish fed on diet C (50% FO+ 50%VO) and E (100%VO) also between the initial fish and those fed on diet D (25% FO + 75% VO). The lowest body protein content was obtained with fish fed diet with A (100% FO). Tilapia fed diet containing 100% FO, had the highest body lipid content compared to the initial fish. The lowest body lipid contain was observed in the fish fed on B (75% FO+ 25%VO). There was no significant difference in body lipid and protein content among fish fed diet with D (25% FO+ 75%VO) and initial fish. Results of the present study suggest that diet supplemented with a mixture of vegetable oils (SO and PO) could totally replace fish oil and produce the best growth response in Oreochromis niloticus.

Total Replacement of Fish Oil by Balanites aegyptiaca and Adansonia digitata Seed Oils in Diets of Clarias anguillaris Fry

“…The most effective diet is the one with the lowest value of FCR. In this study, the best FCR was obtained with the fish fed diet B based on Adansonia digitata seed oil compared to those fed with the control diet P. These results are consistent with those of Sagne et al (2013), who obtained a better FCR with the diet containing peanut oil and soybean oil in equal proportion with respect to the control diet 100% of fish oil in the tilapia fry.…”

Effects of Replacement of Fish Oil by a Mixture of Balanites aegyptiaca and Adansonia digitata Seed Oils on the Growth and Survival of Clarias anguillaris Fries (Linnaeus, 1758)

“…Also, the best feed conversion rate is obtained by the diet A (equal proportion of baobab oil and balanite oil) with an FCR of 1.73 with respect to the diet M (100% HP) for an FCR of 1.91. These results corroborate those of Sagne et al, (2013) who obtained the best FCR with diet E (equal proportion of peanut oil and soybean oil) with a FCR of 1.37 versus 1.77 for regime A (100% HP). However, they are similar to those of Kamarudin et al, (2011) who found FCRs ranging from 1.6 to 1.9 in his study on the effects of the replacement of food fish oil by different sources of food, Vegetable oil on the growth performance and tissue fatty acid profiles of Tor tambroides juveniles.…”

“…Indeed, the highest average weight gain was obtained with diet A containing vegetable oil (a mixture of HB and HA). These results are similar to those of (Sagne et al, 2013) for which the best weight gain was obtained with diet-fed diets containing peanut oil and equal-oil soybean in tilapia.…”

Effect of different dietary lipid sources on growth performance and nutrient utilization of + Nile tilapia ( Oreochromis niloticus ) fingerlings

“…In our study, the different sources of lipids from plants affected the body composition of O. niloticus. While [25] demonstrated that partial or total replacement of FO with VO mixture (SO and GO) in diet of O. niloticus (1.43 g) influenced body composition. Owafeir et al did not find significant effect on body composition of 5.5 g O. niloticus fed diet in which FO was partially or completely replaced with SO and PO mix [10].…”

“…Substantial research on the use of alternative plant oils (PO, LO, and SO) in juvenile hybrid tilapia [21,23]and in juvenile Nile tilapia Oreochromis niloticus fed diets with SFO and cotton seed oil (CSO) mixture [24], SO and GO mixture [25], SO and PO mixture [10], SO [26]; corn oil (CO), LO, beef tallow [17], show comparable result to FO. O. niloticus have been reported to utilize and require more of linoleic acid (n -6 ) series (18:2n -6 and 20:4n -6 ), with normal growth and reproduction, than omega-3 (n -3 ) FA (National Research Council [12,27,28] The n -6 series of unsaturated fatty acids (UFA) are abundant in SO [21;9], LO [18] and GO [29].…”