Browsing Sustainable aquaculture by Title
Now showing items 644-663 of 2402
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Effect of stocking size and nutrient inputs on productivity of Oreochromis shiranus in ponds
(2002)Type: ReportA study to investigate the effects of three different stocking sizes (5, 10, 20 g) and two isonitrogenous input regimes (maize bran x urea and napier grass x urea) on the production of Oreochromis shiranus was conducted ... -
Effect of substituting animal protein sources with soybean meal in diets of Oreochromis karongae (Trewavas 1941)
(2000)Type: Journal ArticleThree diets were formulated using locally available feed ingredients in Malawi to test the effect of replacing animal protein (fish meal, meat and bone meal) with soybean meal (10:0, 5:5, 0:10% of diet) as the protein ... -
Effect of substituting fishmeal with corn protein concentrate on growth performance, nutrient utilization and skin coloration in red hybrid tilapia, Oreochromis sp.
Type: Journal ArticleThe objective of this study was to evaluate the effects of fishmeal (FM) replacement with corn protein concentrate (CPC) on growth performance, nutrient utilization, gut morphology and skin coloration of red hybrid tilapia, ... -
Effect of the filter-feeder silver carp on the water quality of fertilized earthen ponds and Nile tilapia production
(2013)Type: Journal ArticleThe objective of this study is to test the effect of silver carp on water quality and tilapia yield. -
Effect of totally or partially replacing fish meal by alternative protein sources on growth of African catfish Clarias gariepinus (Burchell, 1822) reared in concrete tanks
(2007)Type: Journal ArticleA 12-week feeding trial was carried out in concrete tanks to examine complete and partial replacement (75%) of fish meal (FM) with poultry by-product meal (PBM), meat and bone meal (MBM) and soybean meal (SBM) in practical ... -
Effect of transportation stress on hepatic glycogen of Oreochromis niloticus (L.)
(1998)Type: Journal ArticleOreochromis niloticus was subjected to transportation stress to investigate hepatic glycogen levels and mortality as indices of stress. Mortalities lasted up to three days after transportation, except in highly aerated ... -
Effect of using periphyton substrate (Bamboo stems) on water quality, phytoplankton, zooplankton, periphyton and growth performance for tilapia, mullet and catfish in earthen ponds
(2012)Type: Journal ArticleThis experiment shows that the bamboo substrate improved water quality, survival rate and total production of fish. -
Effect of varying density and water level on the spawning response of African catfish Clarias gariepinus: Implications for seed production
(2006)Type: Journal ArticleThe development of a reliable methodology for spawning of African catfish, Clarias gariepinus without the use of hormone injections would greatly improve the prospects of aquaculture in Africa. Earlier work has shown that ... -
Effects of aflatoxin B1 on reproductive performance of farmed Nile tilapia
(2019)Type: Journal ArticleThis study evaluated the effect of dietary aflatoxin B1 (AFB1) on growth, milt and egg quality in matured Nile tilapia (Oreochromis niloticus). Triplicate groups of Nile tilapia (initial body weight 24.1 ± 2.6 g) were fed ... -
Effects of C/N ratio and periphyton substrates on pond ecology and production performance in giant freshwater prawn Macrobrachium rosenbergii (De Man, 1879) and tilapia Oreochromis niloticus (Linnaeus, 1758) polyculture system
(2015)Type: Journal ArticleThe production performances of giant freshwater prawn Macrobrachium rosenbergii and Nile tilapia Oreochromis niloticus in C/N-controlled periphyton-based polyculture systems were evaluated in triplicate. The result of this ... -
Effects of carbohydrate addition frequencies on biofloc culture of Pacific white shrimp (Litopenaeus vannamei)
(2021)Type: Journal ArticleIn Pacific white shrimp culture, adding organic carbohydrate to the pond besides feed improves water quality and shrimp performance. While the feeding frequency has significant effects on shrimp production, how often ... -
Effects of carbohydrate sources on a biofloc nursery system for whiteleg shrimp (Litopenaeus vannamei)
(2021)Type: Journal ArticleIn biofloc technology carbohydrate is added to stimulate the biofloc growth, the latter helps to improve water quality, reduce the need for water exchange and may serve as natural shrimp feed. The large diversity among ... -
The Effects of feed restriction and isolated or group rearing on the measurement of individual feed intake and estimation of feed conversion ratio in juvenile Nile Tilapia (Oreochromis niloticus) for selective breeding purposes
(2021)Type: Journal ArticleAccurately measuring the phenotype at the individual level is critical to the success of selective breeding programs. Feed efficiency is a key sustainability trait and is typically approached through feed conversion ratio ... -
Effects of rearing conditions on low temperature tolerance of Nile tilapia, Oreochromis niloticus, juveniles
(2004)Type: Conference ProceedingsThis paper summarizes the results of two experiments in which the effects of genotype, age, size, condition factor and diet (natural phytoplankton versus formulated protein pellets) on low-temperature tolerance of juvenile ... -
Effects of relatedness and inbreeding on reproductive success of Nile tilapia (Oreochromis niloticus)
(2009)Type: Journal ArticleIt is well established that progeny of inbred matings are less fit than those of outbred matings, and that inbred individuals suffer from reduced viability and fertility. Inbreeding can be avoided by dispersal of progeny ... -
Effects of some destructive fishing methods on coral cover and potential rates of recovery
(1997)Type: Journal ArticleEffects of fishing with explosives (blastfishing) and sodium cyanide and of anchor damage on live coral were investigated on a heavily exploited fringing reef in Boli-nao, Philippines from 1987 to 1990. A simple balance-sheet ... -
Effects of stocking density on production and economics of all-male tilapia (Oreochromis niloticus) culture in a rain fed rice-fish ecosystem
(2014)Type: Journal ArticleEffects of stocking density on the growth, production, and economics of all-male tilapia (Oreochromis niloticus) were investigated in a rain-fed rice-fish ecosystem for a period of 120 days. Fish were stocked at the rate ... -
Effects of supplementary feeds with different protein levels on growth and economic performances of Nile tilapia (Oreochromis niloticus) cultured in a rain-fed rice-fish ecosystem
(2017)Type: Journal ArticleThis study investigated the effects of supplementary feeds with different crude protein levels on the growth and economic performances of sex-reversed Nile tilapia (Oreochromis niloticus) reared in a rain-fed rice-fish ... -
Effects of two nitrogen fertilizers on water quality and hybrid tilapia performance in fish farms
(2010)Type: Journal ArticleThe purpose of the present study was to compare the effect of urea and ammonium nitrate as nitrogen fertilizer sources with mon superphosphate on water quality and the productive performance of hybrid tilapia fish in outdoor ... -
Effects of white spot disease and bio-security on shrimp farming in Bangladesh
(2016)Type: Journal ArticleShrimp culture is of central importance in Bangladesh, shrimp being the cash component of many smallholder, polyculture fish farming systems. Shrimp also contributes substantial income through exports. However, production ...
