Abstract For the proper growth of fish, it is necessary to feed fish with a and balanced diet. A study was conducted find out effect different protein-based diets on fingerlings Tor putitora (mahseer). dietary protein levels 35%, 40%, 45%, 50% were prepared. The weight gain, standard rate (SGR), food conversion ratio (FCR), percent efficiency (FCE), (PER) studied. An increase observed in an con...

Magnesium hydrogen phosphate (MHP, MgHPO4) recovered from swine manure was prepared as an alternative phosphorus (P) source. Conventional P additives, monocalcium phosphate (MCP), dicalcium phosphate (DCP), and tricalcium phosphate (TCP) were compared with the MHP in terms of growth and P availability by juvenile carp Cyprinus carpio. A basal diet as a negative control was prepared using practi...

backgrounds: optimization of microbial compositions and load in live food during the process of bioencapsulation is one of the most important concerns in aquaculture, as it can promote the growth and feeding parameters of fish larvae. objectives: the aim of this study was to determine the growth and feeding performance of persian sturgeon larvae fed with bioencapsulated d. magna with saccharomy...

We summarize the results of 7 mm VLBA imaging of Sgr A* and discuss some of the difficulties of accurately constraining the size of Sgr A* with VLBI observations. Our imaging results are fully consistent with the hypothesis that the VLBA image of Sgr A* is a resolved elliptical Gaussian caused by the scattering of an intervening thermal plasma. We show that determination of the minor axis size ...

This study was conducted to evaluate the effect of dietary vitamin E on growth performance, feed utilization, biochemical properties and some immune responses in Caspian trout, Salmo caspius. Six experimental diets were formulated with semi-purified ingredients supplemented form DL-α-tocopherol acetate provide actual concentrations 4.9 (the basal diet), 8.6, 17.4, 35.4, 78.8 137.0 mg kg−1 diet,...

The greater duckweed Spirodela polyrhiza (Lemnaceae) is a free-floating freshwater macrophyte. effect of dietary inclusion in the feed common carp Cyprinus carpio fry was evaluated. control (SP0) contained soybean meal as primary protein source. In four experimental feeds, incorporated at levels 5% (SP5), 10% (SP10), 15% (SP15), and 20% (SP20) replacing meal. Broken-line regression showed that ...

Clarias gariepinus juveniles of average weight, 17.57±1.95 g and an length 14.26±0.39 cm were exposed to environmentally relevant concentrations 0 (control), 2.5, 25, 250, 500 µg L-1 atrazine in a quality-controlled 28-day bioassay. Growth performance was assessed bi-weekly fish samples taken from different tanks determine the relative growth rate, specific feed conversion ratio, condition fact...

The present study was carried out to determine the ability of Acipenser baerii in utilizing carbohydrate (dextrin) as a non protein energy source substituted with animal oil. A total of 65 juveniles A. baerii with an initial mean weight of 689 ± 62 g were distributed in 15 fiber glass tanks. Five diets were formulated including 0, 5, 10, 15 and 20% of dextrin and fed  for 8 weeks. Fish were wei...