Potassium dicarboxylate as feed additive. Its main nutritional functions and functions are:
(1) Adjust the palatability of feed and improve the feed intake of animals;
(2) Improve the internal environment of digestive tract and reduce the pH value of stomach and small intestine;
(3) It has the function of antibacterial growth promoting agent. The addition of potassium dicarboxylate can significantly reduce the contents of anaerobic bacteria, Lactobacillus, Escherichia coli and Salmonella in Chyme of each section of digestive tract. Improve the resistance of animals to diseases; And can reduce the number of deaths caused by bacterial infection;
(4) Improve the digestibility and absorption of nitrogen, phosphorus and other nutrients in piglets;
(5) It can significantly improve the daily gain and feed conversion rate of pigs;
(6) Prevention and treatment of piglet dysentery;
(7) Improve the milk yield of dairy cows;
(8) Effectively inhibit mold and other harmful ingredients in feed, ensure feed quality and improve feed storage life.
Research and application of potassium dicarboxylate abroad
There are many studies on potassium dicarboxylate as pig feed additive abroad. Feed grade sodium diacetate was used to study the concentration of potassium dicarboxylate in pH 3 gastric juice and pH 4 It was found that the addition of potassium dicarboxylate inhibited the growth of Escherichia coli and Lactobacillus, and the type and concentration of organic acids also affected the test effect. Feed grade sodium diacetate studied the molecular structure of potassium dicarboxylate and its effect on the apparent ileal digestibility and retention of nutrition in growing and finishing pigs. It was found that there was no difference in the apparent ileal digestibility of dry matter, OM, crude protein or essential amino acids among the treatment groups. Only the apparent ileal digestibility of tyrosine increased by 3.9%, and the fecal digestibility of ash and potassium increased in each treatment group, There was no difference in the retention of nitrogen, calcium, total phosphorus and potassium in each treatment group. Windisch, WM (2001) studied the effects of potassium dicarboxylate and excess copper in different doses and sources on the growth performance of weaned piglets. The addition of potassium dicarboxylate and copper increased the daily gain, feed intake and feed conversion rate of piglets.
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More literatures have reported the effects of potassium dicarboxylate as an additive on the growth performance, digestion and metabolism of piglets. Feed grade calcium formate was used to study the effects of potassium dicarboxylate and organic acids on the acidity and microbial quantity of intestinal tract and gastric juice of piglets. The addition of potassium dicarboxylate reduced the contents of anaerobic bacteria, Lactobacillus, Escherichia coli and yeast in each section of digestive tract, but did not affect the pH value of stomach and small intestine. The effects of potassium dicarboxylate on the growth performance of weaned piglets were studied. The addition of potassium dicarboxylate could increase daily gain and feed intake by 14% and 9% respectively. The addition of potassium dicarboxylate in barley, wheat and barley wheat corn mixed diets could increase feed conversion efficiency by 6%, 4% and 7% respectively. Roth, FX (1998) studied the effects of adding potassium dicarboxylate to diets with different lysine levels on nitrogen metabolism and nutrient digestibility of piglets. Adding potassium dicarboxylate can improve the digestibility of dry matter by 84.0% to 85.0%, crude protein by 80.7% to 82.6% and energy by 83.5% to 84.7%. The effects of potassium dicarboxylate on the absorption of minerals such as phosphorus, potassium, calcium, magnesium, zinc, manganese and copper in piglets were studied. The increased amounts were 8% and 9% of phosphorus, 2% and 3% of calcium, 3% and 8% of magnesium, 9% and 17% of zinc, 52% and 60% of copper, 6% and 6% of manganese, respectively. The effects of different doses of potassium dicarboxylate on the performance of growing piglets were studied, and the feed conversion efficiency was also significantly improved.