جستجوی مقالات مرتبط با کلیدواژه "ویتامین" در نشریات گروه "شیلات"

With the increasing growth of the world population, the aquaculture industry is considered one of the most important sources of animal protein supply for human societies. One of the main challenges facing the aquatic feed production industry is the production of quality feed rations that are suitable the nutritional needs of aquatic species. Vitamins are needed to prevent diseases, increase growth and maintain the health of all types of aquatic animals and ultimately improve the quality of cultivated species. Because vitamins are not produced in the body or are not produced in sufficient quantities to meet the needs of aquatic animals; therefore, they should be included as a supplement in the aquafeed. The proper use of vitamins in the diets of aquatics is one of the most important and appropriate approaches in the aquaculture industry, which helps the development and sustainability of this industry by increasing production, optimal growth and health of aquatics.

It is important to know the nutritional requirements of ornamental fish to achieve better growth and production performance. In recent years, nutritional information has been obtained about some aquarium species. Also, in some cases, the diet information of these fish can be extracted from the results obtained from farmed fish. Having the right dietary formula for the complementary needs of aquarium fish improves the digestibility of nutrients, meets metabolic needs, and reduces maintenance costs and water pollution. And at the same time feeds the complete formula of sustainable aquaculture goals.  In addition, a complete diet follows the goals of sustainable aquaculture. So far, a variety of foods such as milk powder, flakes, slaughterhouse waste, dry food and a variety of live foods including rotifers, Artemia nauplii, Moina, daphnia, Ceriodaphnia and algae have been widely used to feed aquarium fish; each has its own nutritional and production value. Considering that the coloring of ornamental fish species is important in the trade of these fish, it is recommended to add pigments and carotenoids to the diet of aquarium fish. The aim of this study was to investigate the specific nutritional requirements to improve production and thus more economical fish farming.

The effect of different levels of vitamins C and E on growth survival and blood factors were studied on common carp (Cyprinus carpio). 9 mixed diet containing 0, 200 and 400 mg / kg of vitamin C and0, 200 and 400 mg / kg vitamin E for 6 weeks were performed in triplicate. Total of 270 common carp with an average weight of 12.29 g were introduced into the 27 number of rearing tanks. At the end of the experiment the fish using cut stem tail vein blood samples were collected. The results showed that the different groups in terms of weight, length and survival observed difference is statistically significant (P < 0.05).The mean length and weight on the diet treated with 400 C + 400 E 6 mg / kg of vitamins. The results showed that the value of FCR, SGR, BWI, ADG and CF difference is not statistically significant (P > 0.05).The results of this study showed that the addition 400 C + 400 E mg / kg of the vitamin would be best growth and survival of common carp.