When the piglets are weaned, their growth and development are not perfect, and the weaning stress caused by changes in environment and feed makes the pigs have symptoms such as growth retardation, low immunity, diarrhea or edema. Many farmers have added acidifiers to their feed to improve the stress of the pigs and achieved good results.
Reduce the pH value in the digestive tract, activate pepsin, increase the digestibility of protein; lower the pH, and effectively control the growth of pathogenic microorganisms in the digestive tract.
Slow down the rate of gastric emptying, increase the digestibility of the diet; stimulate the oral taste bud cells of the animal, promote the secretion of saliva, thereby increasing the appetite and feed intake; and synergizing with high copper and probiotics to alleviate the harm caused by stress on the piglets, improve the child Pig immunity and production performance.
However, the acidifier has the following problems during its use:
1. There are many kinds of acidifiers and the addition amount is different. It is not easy to control, and the effect is not very stable. The type of diet, pig age and weight, and feeding environment will also affect the use effect.
2. The acidulant is mostly absorbed in the stomach, and its role in the small intestine is weakened.
3. The acidifier is corrosive and inconvenient to transport and store.
4. Prebiotics are green feed additives that can improve the stress of weaned pigs. At present, many feed manufacturers compound acidifiers and prebiotics to improve the stress of the pigs and improve the performance of the pigs. More used is xylooligosaccharide.
Xylooligosaccharides are oligosaccharides with a degree of polymerization of 2 to 7 linked by xylose molecules with β-1,4 glycosidic bonds. Compared with other prebiotics, xylooligosaccharides have four characteristics:
1. Highly selective proliferation of Bifidobacteria, the effect is nearly 20 times that of other polymeric sugars. After the xylooligosaccharide reaches the intestinal tract, it proliferates endogenous Bifidobacteria and can effectively inhibit the reproduction of other harmful fungi and reduce endogenous toxins. The production.
2, not digested by the enzymes in the animal's body, can directly reach the intestinal tract, play a role in regulating and maintaining the balance of the intestinal flora, and metabolize the nutrients beneficial to the body, improve the body's production performance and immunity.
3, acid heat stability is good, in acidic conditions pH value of 2.3 ~ 8 when heated to 100 ° C basically does not decompose, easy to compatibility, processing, transportation and storage.
4, the minimum intake, its effective amount is 1 / 20 of oligo-isomaltose, 1 / 7 ~ 1 / 10 of oligofructose.
The acidifier and xylooligosaccharide can be combined to improve the performance of weaned pigs compared to single use. The acidifying agent directly reduces the pH of the large intestine, creates a good growth environment for beneficial bacteria, and inhibits the growth of harmful bacteria. The xylooligosaccharide inhibits the growth of harmful bacteria by directly proliferating beneficial bacteria and then producing acid. The combination of the two just happens to proliferate the beneficial bacteria and regulate the pH of the intestine, which is beneficial to better improve the intestinal environment.
Studies have shown that xylooligosaccharides and acidifiers can promote the proliferation of mucosal cells, increase the villus height of intestinal mucosa, reduce the depth of crypts, thereby promoting the digestibility of nutrients and increasing the daily weight gain and growth of piglets. performance. Chen Daiwen et al. also showed that acidifiers and oligosaccharides have significant interaction effects on feed utilization, and the combination of the two can improve the growth performance and nutrient digestibility of weaned pigs.
The positive significance of acidifier and xylooligosaccharide compounding in pig breeding has been confirmed through a large number of practices. With the introduction and application of new products, it will gradually be recognized by the majority of feed manufacturers and farmers, and will certainly become A current trend in feed additives.
Milling Inserts,Milling Carbide Insert,Carbide Milling Inserts,Metal Cutter Milling Inserts
Zhuzhou Zhirong Advanced Material Co., Ltd , https://www.zrcarbide.com