Evaluation of Seaweeds Ulva rigida and Pterocladia capillaceaas Dietary Supplements in Nile Tilapia Fingerlings

Abstract

The present study was carried out to investigate the effect of green algae Ulva lactuca and red algae Pterocladia capillacea at 0.0, 2.5 and 5% on growth performance, feed utilization, carcass composition and blood indices of Nile tilapia, Oreochromis niloticus fingerlings. Fish (18.47 ± 1.25 gm) were randomly divided into fifteen aquaria in triplicates and fed diets contained about 29.51% total protein and 4.53 kcal/g gross energy. All the growth performance parameters and feed utilization values of experimental fish were increased significantly (P ≤ 0.05) by both of algae supplementation. Diet supplemented with 5% of Ulva lactuca had acceptable growth parameters compared with other diets. Fish fed supplemented diets had slight increases and decreases for carcass protein and lipids without significant differences (P ≥ 0.05). Also, no significant differences (P>0.05) were obtained for serum total protein, albumin and globulin and liver activity. It may be summarized that, algae supplementation especially at 5% of Ulva lactuca level may improves growth parameters and carcass composition without adverse effects on blood metabolites and liver activity.

Effect of Dietary Seaweed Supplementation on Growth, Feed Utilization, Digestibility Co-efficient, Digestive Enzyme Activity and Challenge Study against Aeromonas hydrophila of Nile Tilapia Oreochromis niloticus

“…Nile tilapia, scientifically known as Oreochromis niloticus, when provided with Ulva rigida at a rate of 5% incorporation, exhibited enhanced growth performance as reported by Guroy (2007). Similarly, Nile tilapia, (Oreochromis niloticus), showed improved growth performance when fed with Ulva lactuca at 5% inclusion, as documented by Khalafalla and El-Hais (2015). Moreover, Nile tilapia (Oreochromis niloticus) demonstrated improved growth performance, feed efficiency, nutrient utilization and body composition when fed with Ulva meal at 5% inclusion, as indicated by Ergun et al (2009).…”

Effect of paprika extracts on growth performance, haemolymph chemistry, intestinal microbiota and antioxidant enzyme activities of white‐leg shrimp (Litopenaeus vannamei)

“…Keyshams et al (2021) also found that the oral administration of the Biotronic® Top3 herbal supplement, especially at a concentration of 2%, led to a significant decrease in cholesterol and triglyceride levels in L. vannamei haemolymph. However, the serum triglyceride levels in Nile tilapia ( Orechromis niloticus ) and Japanese meagre ( Argyrosomus japonicas ) were not affected by sea lettuce extract (Khalafalla & El‐Hais, 2015; Madibana et al, 2017).…”

"Ulva Species Usage in Aquaculture: Current Status and Future Prospective"

“…In contrast, research by Nakagawa [102] shown that U. pertusa at concentrations of 2.5, 5.0, 10.0, and 15.0 percent replaced fish meal, inhibited lipid buildup in intraperitoneal body fat in Black Sea bream (Acanthopagrus schlegeli). Additionally, Nile tilapia fingerlings (Oreochromis niloticus) fed U. lactuca meal powder with a concentration of 2.5 and 5 percent exhibited no significant influence on liver enzyme activity, serum total protein, globulin, and albumin [52]. Antioxidant and Immune-Related Genes Expressions:…”

“…As shown in Table 2 [38][39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54][55][56]. Ulva has an intriguing chemical composition that enables them to be used in the production of functional or health-promoting foods appealing.…”

“…The growth of European seabass fry (Dicentrarchus labrax L.) was also positively impacted by the addition of 5% U. lactuca powder to the meal [51]. When compared to a control diet, the growth rate of Nile tilapia fingerlings (Oreochromis niloticus) (18.47±1.25 gm) fed meals containing 2.5 and 5% of U. lactuca powder dramatically increased by 53 and 68% respectively [52]. Additionally, Abdel Warith, et al [41] reported that African catfish (Clarias gariepinus) fed diets containing 20 or 30 percent U. lactuca meal had the worst growth performance and feed utilization compared to control diets.…”