Feed for producing pork containing DHA and use method thereof

Abstract

The present invention provides a feed for producing pork containing DHA and a use method thereof. The feed comprises corns, soybean meal, wheat bran, lysine, methionine, stone powder, calcium formate, calcium hydrogen phosphate, edible salt, a premix for pigs, and schizochytrium limacinum powder or chlorella powder. The method aims at applying alga to develop the feed for producing the pork enriched in DHA. The DHA in the alga is not subjected to a food chain transmission and the feed does not contain heavy metals, is safe, pollution-free, high in content and free of fish smell, replaces fish oil, and solves the problems in the prior art. Besides, after feeding, the DHA content in the fat of longissimus dorsi of the produced pork is 40% or more higher than that of common pork, the content of the DHA is higher than the content of EPA, and a ratio of omega-6 to omega-3 is lower than 2.8. At the same time, after feeding, the degree of oxidation of the produced pork is not significantly different from that of the common pork. The optimized feeding method effectively improves the fatty acid composition of the pork and the produced pork is of great significance to the fatty acid balance of human body.

Description

technical field [0001] The invention relates to the technical field of feed, more specifically, relates to a feed for producing pork containing DHA and a use method thereof. Background technique [0002] More than 20 years of economic growth after China's reform and opening up has caused changes in food consumption and food structure, the biggest feature of which is the increase in consumption of meat products. Experts predict that with the improvement of Chinese residents' living standards and changes in consumption habits, meat products will become the mainstream of meat consumption in the future, and the product structure will be inclined to chilled fresh meat, low-temperature meat products, and health-care functional meat products. The proportion of pork in people's dietary structure continues to increase. With the improvement of people's living standards, people have higher and higher requirements for the safety and nutrition of pork. However, the fatty acids in pork ar...

AI Technical Summary

Problems solved by technology

According to the consensus of the nutritional circles, fish oil is a better source of DHA under natural conditions, but adding it to pig feed will produce a great fishy smell, which will reduce the palatability of the feed, thus affecting feeding and pig growth

Some fish oils contain harmful substances such as PCBs (polychlorinated biphenyls), dioxins, and heavy metals such as mercury and lead, which will affect human health after accumulation

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