Current Soybean Product Consumption in Feeds Soybean meal has been used for 60 years in carp feed, but it is used only in the post-fishing period and in small quantities. Other soy products that have been evaluated in quail feed include soy protein concentrates, soy protein isolates, full fat soy and soybean oil. The solvent degreasing of the dehulled soy meal (48% crude protein) is more commonly used in quail feeds. At present, the amount of soybean meal used in seedling rearing herring feed is not more than 20%. Assuming that the global carp feed production is 503,000 metric tons, of which 75% is bred, the annual amount of soybean meal used in global carp feed is 75428 metric tons. . A similar estimate can also be applied to salmon feed, but science shows that the actual value should be lower than the estimate. The highest estimate of the amount of soybean meal used in the feed for puffer fish breeding is approximately 151,000 tons. In Chile, with the exception of Bolivia, Paraguay, and Brazil, importation of soybean meal must be subject to import duties in other North American regions. Therefore, the amount of soybean meal used varies depending on the value of fishmeal and is usually between 5% and 10%. Chile is the world’s second-largest producer of farmed salmon, so these factors have a very significant impact on the amount of soybean meal used in global salmon feed. The situation in Norway and Scotland is different. The amount of soybean meal used in carp feed can reach 25% when the climate is poor. Therefore, after comprehensive consideration, the amount of soybean meal used in global eel feed is between 100,000 and 110,000 metric tons. The plant protein in the feed rarely uses other protein sources than soy protein. Concentrated soy protein or soy protein isolates are sometimes used in fry feeds or in special nursery feeds to obtain low fish meal feeds that do not contain slaughter by-products of livestock and poultry. Although there is positive research on the use of whole-fat soybeans in quail feeds, the use is still limited. Especially in the UK, soybean oil is a priority for replacing fish oil in catfish feed. However, rapeseed oil is the biggest competitor, and its use is determined by the price. It is difficult to estimate their use at the moment because of the differences in the ability of the feed mills to handle fish oil and vegetable oil at the same time. This requires two sets of storage and in-plant delivery systems unless the two greases are pre-mixed. The industry is currently evaluating various options to tackle the problem of fish oil shortages, but there is no clear consensus. The future demand for aquafeed protein must be determined by future aquafeed production and fishmeal supply. Barlow predicts that the output of aquafeeds in 2010 will increase from 1,3098,000 tons in 2000 to 3,722,600 tons. Based on the current consumption of fishmeal in various types of aquafeed, the fishmeal needed for fish and shrimp feed by 2010 will increase from 2115,000 tons in 2000 to 408,100 tons. This figure is slightly higher than the non-El Niño years global trade in fishmeal. Barlow predicts that the content of fishmeal in aquafeed formulations will be reduced. In 2010, the total amount of fishmeal used in aquafeeds will be 2031,000 tons, while the difference of 1,2550,000 tons (4081,000 minus 2831,000) will be supplied by other protein sources. Assuming that fish meal contains 70% crude protein in aquafeeds, 87,500 tons of protein in aquafeeds in 2010 must come from non-fish meal protein sources. If soy meal (48% crude protein) is used to supply protein, the total amount of aquafeed will be 1,829,917 metric tons, and if high protein concentrate soy protein is used, the amount will be reduced to 1115,000 metric tons.鲑鳟 Feed production currently accounts for approximately 12.5% ​​of global fish feed production, and this ratio may decline in 2010 as other aquaculture fish species will increase. If the feed for salmon production in 2010 accounts for 7% of the global feed for aquaculture, its production will be 2606,000 metric tons. Judging from the amount of soybean meal (about 20%) used in today's nursery feeds, the use of soybean meal in 2010 was 291,000 tonnes. If concentrated soy protein is used to replace 40% of the feed meal fishmeal, the potential market for 2010 is 780,000 metric tons. This level of substitution has been shown to be feasible in many studies. Full-fat soybeans have been evaluated in salmon, Atlantic salmon, and emperor feeds. Maybe because these whole fat soybeans are often over-processed before the feed is mixed, most studies have shown that full-fat soybeans can be used in formulas with a commonly formulated amount of soybean meal or higher. Heating during full-fat soybean expansion reduces trypsin inhibitor activity and reduces other heat-sensitive anti-nutritional factors. Full-fat soybeans have the advantage of simultaneously adding protein and fats to the feed. This is very important in view of the shortage of global fish oil supply. Under the premise that anti-nutritional factors in full-fat soybeans are reduced due to puffed heat, their use in the future may increase. At this stage, full-fat soybean meal has a limited use in quail feed.
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