We present a quantitative comparison between the Horizontal Branch morphology in the core of the Sagittarius dwarf spheroidal galaxy (Sgr) and in a wide field sampling a portion of its tidal stream (Sgr Stream), located tens of kpc away from the center of the parent galaxy. We find that the Blue Horizontal Branch (BHB) stars in that part of the Stream are five times more abundant than in the Sg...

We report the detection of radio QPOs with structure changes using the Very Long Baseline Array (VLBA) at 43 GHz. We found conspicuous patterned changes of the structure with P = 16.8, 22.2, 31.4,&56.4 min, roughly in a 3 : 4 : 6 : 10 ratio. The first two periods show a rotating one-arm structure, while the P = 31.4 min shows a rotating 3-arm structure, as if viewed edge-on. At the central 50μa...

White Snapper (Lates Calcarifer) has a fairly complete nutritional content, is favored by the community and high economic value. The success of white snapper cultivation determined availability feed during maintenance. This study aims to analyze use gold snails as substitute for pellet on growth survival snapper, feeding snails, pellets combination both. research took place from July November 2...

In this study, the effects of dietary lipid levels on growth, apparent digestibility, and blood biochemical indices of juveniles crucian carp (Carassius auratus gibelio) were evaluated. Triplicate groups of fish (average weight 2.05±0.02 g) were fed four isonitrogenous experimental diets formulated with increasing levels (13.6, 61.3, 115, and 259.8 g kg) of lipid. The weight gain (WG), specific...

The objective of this study was to examine insulin-like growth factor (IGF)-I and IGF-II mRNA levels in fast and slow growing families of catfish. Relative levels of IGF-I and IGF-II mRNA were determined by real-time PCR. Family A exhibited a specific growth rate (SGR) of 3.6 and was designated as fast growing, while family H exhibited a SGR of 3.1 and was designated as slow growing (P=0.017). ...

A 121-day feeding trial was undertaken to test the effects of two dietary lipid levels (16 and 21% L16, L21) in triplicated gilthead sea bream groups (initial weight: 67.5 g) reared at different water temperatures (high, H 23°C low, L 17°C) same recirculation system but exposed a switch temperature after 58 days. Fish kept were transferred (HL transition, autumn shift), fish (LH summer while co...

The effects of supplementing diets with levamisole on growth, immune response and resistance against pathogenic Aeromonas hydrophila were determined. Fish were assigned to three treatments with different level of levamisole (125, 250 and 500 mg kg ̄1 diet) and the control diet was prepared without levamisole. Cirrhinus mrigala were fed at 4% of their body mass for 60 days. Growth performance, en...

We have investigated the effect of melatonin (MLT) on specific growth rate (SGR% day(-1)), condition factor (k), gonado-somatic-index (GSI), histological structures of gonads, serum as well as gonadal protein and lipid in Nile tilapia Oreochromis niloticus. MLT treatment in the dose of 25 μg/L for three weeks reduced SGR% day(-1) (0.9±0.04) as compared to control (1.23±0.026). The GSI value was...

This study evaluated the effect of biofloc technology (BFT) on protein utilization and growth performance Oreochromis niloticus fry under green house for 14 weeks a 3 × 2 factorial design involving three crude (CP) levels (22, 27 35%) two different carbon sources. Molasses glucose were independently used as sources in BFT tanks with aeration using air stones. Mono-sex fish mean weight 0.07 ± 0....

Small fish larvae grow allometrically, but little is known about how this growth pattern may be affected by different growth rates and early diet quality. The present study investigates how different growth rates, caused by start-feeding with copepods or rotifers the first 30 days post-hatch (dph), affect allometric growth and development of nine major organs in ballan wrasse (Labrus bergylta) ...