Laboratory evaluations were made to assess the toxicological and biochemical effect of cypermethrin on fingerlings of common edible freshwater culture carp (Labeo rohita). There was a significant negative (P < 0.05) correlation observed between effective doses of cypermethrin and exposure periods; that is, LC₅₀ values decreased from 0.323 μg/L (6 h) to  > 0.278 μg/L (12 h),  > 0.240 μg/L (18 h)...

This study was investigated the utilization of agama lizard meat meal (Agama agama) as dietary protein source in the diets of Clarias gariepinus fingerlings (MW±SE = 33.48 g±0.13). The fingerlings were fed four Isonitrogenous and Isocaloric diets containing blends of agama lizard meal in percentages of 0 (Diet I), 10 (Diet II), 20 (Diet III) and 30% (Diet IV) respectively for 8 weeks at 5% body...

In an earlier study Oreochromis niloticus fingerlings (initial weight, 4.31±0.27 g) were fed diets with dietary protein levels, ranging from 7.30% 44.24% dry matter (dm) for eight weeks. Using growth performance and food conversion ratio, the dietary protein requirement of the fingerlings was estimated at 33.32% dietary protein (dm). In this study the dietary essential amino acid requirements f...

Edwardsiella ictaluri is a Gram-negative facultative intracellular pathogen causing enteric septicemia of channel catfish (ESC). The disease causes considerable economic losses in the commercial catfish industry in the United States. Although antibiotics are used as feed additive, vaccination is a better alternative for prevention of the disease. Here we report the development and characterizat...

Infection patterns with ectoparasitic flagellates belonging to the genus Ichthyobodo were studied in an Atlantic salmon Salmo salar (L.) hatchery in western Norway during an 11 mo period, from eyed eggs to smoltification. Since the earlier species designation Ichthyobodo necator (sensu lato, s.l.) has been shown to represent a complex of several species, the epizootiology of different Ichthyobo...

The study was conducted to evaluate the efficacy of Mikania cordata leaf powder on non-specific immune response and disease resistance of Labeo rohita fingerlings against the Aphanomyces invadans infection. M. cordata extract was incorporated in the diets (at 0.0%, 1%, 2% and 3%) of L. rohita fingerlings (19±0.95g). Blood and serum sampling was carried out on 0th day, 14th day, 28th day and 42t...

This study was aimed to evaluate the efficiency of three experimental feeds, given to three groups of rohu (Labeo rohita) fingerlings, reared in cemented tanks for 45 days. One group of fishes (control group) was fed with hatchery feed; and growth of this group was compared with the other experimental groups. In all the three experimental groups the protein level was kept below the required lev...

The aim of the present study was to evaluate the acute effects of commercial formulation of traiazophos, profenofos, carbofuran and carbaryl in Cirrhinus mrigala fingerlings. Pesticides were applied to fingerlings that had been grown under optimised standard conditions under a maintained static bioassay system. Probit analysis was used for the estimation of LC50 values, which were ascertained a...

The suitability of fermented pigeon pea meal as a protein ingredient in diets for Clarias gariepinus fingerlings was evaluated. A strain of Rhizopus oligoporus was used to ferment the meal for six days at 37°C. Five isonitrogenous (30% crude protein) and isoenergetic (16.45 MJ/kg) diets were formulated in which fermented meal was used to replace soybean meal at five inclusion levels (0%, 25%, 5...

Growth performance, food efficiency and body composition of pikeperch (Sander lucioperca) were investigated with 1 or 2 g/kg L-carnitine added to the diet. Control diet did not contain L-carnitine. Two hundred pikeperch fingerlings (1.63 g, mean weight) were stocked in each 1 m3 concrete tank and fed equally 6 meals per day for 6 weeks. Higher increment in body weight (5.92 ± 0.37 g), the ...