Effect of Algae Based Diets on Growth Performance, Body Composition and Fatty Acid Profile of Indian Major Carp, Rohu Labeo Rohita, Hamilton)

Abstract

Abstract:Six iso-energetic (352 kcal gross energy/100 g feed) and iso-nitrogenous (32% crude protein) experimental diets containing one of the four algae (Anabaena cylindrica, AN; Nostoc salbasa, NS; Spirulina platensis, SP; Westleopsis prolifica, WS) as the major dietary ingredient (40% of the total composition) or algal meal mixture with supplemental protein (AMM+PS) or only algal meal mixture (AMM) were tested against a control diet to find out the suitability of algal meal to develop practical diet for rohu fingerling. The experimental fish of average weight 2.0 ± 0.1 g were fed at a rate equaling 4% of body wt/day for 8 weeks at an experimental temperature of 28 ± 2°C. Significant (p<0.05) enhancement in growth rate was observed in the groups fed with WS (571%) followed by the groups fed with NS (517.6%) and SP (502.8%) as compared to that of the groundnut oil, rice bran and soybean meal based control diet (406.4%). Fingerlings fed with algal meal mixture (AMM) gained least (255.2%). Diet with WS performed well in terms of FCR, PER, HSI, MR and CF when AMM showed least efficiency. Fish fed with SP showed better protein utilization (ANPU%) as compared to the other dietary groups. Carcass protein was not affected by any diet. The MUFA and PUFA of liver and PUFA of muscle increased over the initial value fed with control and experimental diets. But the MUFA of muscle with these diets are less than the initial. The SFA content in all diets of both the tissues is either same or less than initial value except with AMM diet. The total n-3PUFA in liver increased with all diets over the initial value. But this increase in muscle was observed only with AN, NS, WS and AMM+PS diets. The n-6PUFA of liver and muscle remained either same or increased with all diets over initial value. This study showed that individual algal diets gave better result in growth performance and PUFA content. Among all the algal diets WS found to be the best.

Effects of Replacing Soybean Meal with Crassocephalum crepidioides leaf Meal on Growth, Nutrient Utilisation and Whole Body Composition of Labeo rohita Fingerlings

“…The HIS and ISI values did not differ significantly among the fish of different experimental groups, which is in agreement with the study of Mishra et al, (2017), who observed that L. rohita fed Westleopsis prolifica, algae as a major dietary ingredients showed no significant differences in HSI. Phulia et al, (2017) also found no significant differences in HSI and ISI of L. rohita fed fermented Jatropha kernel meal in replacement of soybean meal.…”

In Vitro Antioxidant and Antibacterial Activities of Medicinal Flower Laligurans Rhododendron arboreum Collected from Kathmandu Valley, Nepal

“…Over numerous centuries, a wealth of knowledge regarding the healing properties of plants has been accumulated. The local community possesses extensive traditional knowledge regarding the use of various plants or substances for treating common diseases [ 25 ]. According to research, total phenolic content (TPC) is considered the primary compound in plants capable of inhibiting free radicals.…”

Effect of Protein Diet on Growth Performance and Body Composition of Labeo rohita Reared in Glass Tank

“…With optimum environment and protein diet higher yield of fish meat in term of growth can be obtained [17]. Fish growth can be measured as the increase in fish weight and fish length [18]. For this purpose, the physico-chemical parameters like temperature, dissolved oxygen, and pH of water in tanks must be optimum for proper growth of fish fingerlings [19].…”