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In animal husbandry, feed conversion ratio (FCR) or feed conversion rate is a ratio or rate measuring of the efficiency with which the bodies of livestock convert animal feed into the desired output. For dairy cows, for example, the output is milk, whereas in animals raised for meat (such as beef cows, [1] pigs, chickens, and fish) the output ...
The feed consists of protein-rich defatted biomass of Nannochloropsis oculata and whole cells of DHA-rich Schizochytrium sp. and was found to perform better in growth, weight gain, specific growth rate, best feed conversion ratio and fish nutrient content than the reference diet of ocean-derived fishmeal and fish oil. [12] [13]
These higher protein-level requirements are a consequence of the higher feed efficiency of aquatic animals (higher feed conversion ratio [FCR], that is, kg of feed per kg of animal produced). Fish such as salmon have an FCR around 1.1 kg of feed per kg of salmon [10] whereas chickens are in the 2.5 kg of feed per kg of chicken range. Fish do ...
Feed conversion ratios (feed input to tuna weight gain) of approximately 15:1 or higher result in significant feed requirements for captive southern bluefin tuna and resultant nutrient pollution. The feed conversion ratio is a consequence of the fish's carnivorous diet and the high metabolic costs of the species.
This succulent fish grows rapidly and has a high feed conversion rate. Over 50% of the total aquaculture production of carp in China has now converted to Jian carp. [11] [15] By 2004, the induced breeding of carp had been so effective that the carp industry amounted to 46 percent of the total aquaculture output. [12]
Carp. 1913 illustration of Cyprinus carpio, better known as the common carp. Common carp in Lake Minnetonka, Minnesota. The term carp (pl.: carp) is a generic common name for numerous species of freshwater fish from the family Cyprinidae, a very large clade of ray-finned fish mostly native to Eurasia. While carp are prized quarries and are ...
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Biofloc Technology. Biofloc technology (BFT) is a system of aquaculture that uses "microbial biotechnology to increase the efficacy and utilization of fish feeds, where toxic materials such as nitrogen components are treated and converted to a useful product, like a protein for using as supplementary feeds to the fish and crustaceans." [1]
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