Porcine blood is rich in protein, contains 10 essential amino acids for animal growth and has a reasonable ratio. It also has the advantages of wide source, low price, and high absorption and utilization. The magical effect of pig blood in aquatic products is now described as follows:
First, feed shrimp. It can be used to feed Macrobrachium rosenbergii and green shrimp. When fed, pig blood was cooked and mashed, fed together with bean cake and wheat bran. At the seedling stage, pig blood consumption accounts for 10% to 40% of the feed volume and the cultivation phase accounts for 40% to 80%.
Second, feed the beard. From seedlings to adult fish can be used throughout the breeding process. The amount of cooked pig blood added during the seedling stage is 20% to 40% of the total amount of feed, and it is cooked and fed together with the feed such as surimi, fishmeal, and wheat bran. With the continuous growth of fish, the amount of cooked pig blood can gradually increase to account for 50% to 70% of the total amount of feed.
Third, feed adult fish. In adult fish ponds where the water quality is thin or where there is a large proportion of fish, pig blood is spilled together with the residual food taken out of the pig's stomach when the pigs are slaughtered, both as bait and as fertilizer. Practice has shown that: In the adult fish ponds fed with pig blood, the weight gain of the fish is better than that of the pond fed with the main dish.
Fourth, feed the yellow cockroach. The pig's blood is placed in a fly cage or a nursery pond, and fly maggots are bred for feeding by Astragalus membranaceus.
When using pig blood to feed fish and shrimp, it should be noted that the calcium and phosphorus contents in the pig's blood are low and cannot meet the needs for the growth of fish and shrimp. Therefore, 2% to 3% of minerals should be added to the feed at the same time, and the pool must be regularly Spill soluble calcium and phosphorus.
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