background: faba bean (vicia faba) is a rich source of protein and carbohydrates that is used as a vegetable ingredient in diet of livestock, poultry and fish, in many countries. objectives: this study was conducted to assess the effects of different levels of faba bean on the serum lipid levels and liver function of farmed beluga sturgeon (huso huso). methods: 144 juvenile beluga (82.38 ± 0.83...

effect of dietary free l-lysine on growth, food intake, and muscle composition of beluga juveniles were investigated over 6 weeks. control diet lysine content was 2.1% of dry matter (4.4% of dietary protein). three experimental diets were prepared by adding lysine (0.5, 1 and 1.5%) to control diet to obtain diets containing 2.6, 3.1 and 3.6% of dry matter lysine (corresponding to 5.5, 6.6 and 7...

the late sexual maturity in sturgeon and the absence of morphological differences between males and females makes sex discrimination difficult. identification of sex at an early life stage is of high interest in caviar production because it allows efficient selection of females. in this study, the genome of 10 mature male and 10 mature female specimens of persian sturgeon (acipenser persicus...

in this study, the concentration of calcium (ca), cobalt (co), chromium (cr), copper (cu), iron (fe), potassium (k), magnesium (mg), manganese (mn), selenium (se) and zinc (zn) as essential metals, were determined in caviar of wild beluga sturgeon caught from the caspian sea in march 2012. potassium (4885.51± 17.81 µg g -1 ) and magnesium (346.61± 6.6 µg g -1 ) had the highest concentration and...

The emergence of viruses such as severe acute respiratory syndrome coronavirus and Nipah virus has underscored the role of animal reservoirs in human disease and the need for reservoir surveillance. Here, we used a panviral DNA microarray to investigate the death of a captive beluga whale in an aquatic park. A highly divergent coronavirus, tentatively named coronavirus SW1, was identified in li...

Given the remote, rugged areas belugas typically inhabit and low rehabilitation success rate with any cetacean, it is rare to have opportunity rescue a live-stranded beluga. The Alaska SeaLife Center cared for two stranded beluga calves different outcomes. In 2012, neonatal male calf (DL1202) following intense storms in Bristol Bay. 2017, helicopter pilot discovered (DL1705) during flight over ...

Changing conditions in the Arctic have had severe consequences for many marine mammals. In this study, we examined blubber cortisol using radioimmunoassay 4 Canadian beluga whale Dephinapterus leucas populations. The endangered Cumberland Sound population higher levels (mean ± SE: 0.65 0.11 ng g -1 ) than populations not at risk: Eastern Beaufort Sea (0.31 0.03 ; p < 0.001), High Arctic-Baff...