Zinc Oxide Buffers Organic Acids In Piglets

- May 10, 2018 -

In 2014, the European Union updated its regulations related to feed production. The use of medicinal doses of zinc oxide in piglet feed has become history. From a personal point of view, because distributors believe that the use of high-dose zinc oxide is a market need, I have used 2-3 kg of zinc oxide in piglet feed in the past. However, we felt that it was time to make changes. We have selected low-dose supplemented zinc oxide, which is added in accordance with European Union regulations and is also beneficial to intestinal microbial balance.

In other words, zinc oxide buffers a significant portion of the acidifier. Of course, I am very clear about their respective roles. This is also the first time I have merged two pieces of information in actual production. Since the acidity of my piglet feed product has been lower than the highest recommended value of ABC4, I have not paid attention to the role played by a single ingredient. Interestingly, the rations I tested happened to be higher than the recommended maximum of ABC4 (350 meq/kg). However, after replacing the high doses of zinc oxide with low doses of zinc oxide, the ABC4 values fell to an acceptable range. Inside. Replacement of high-dose (3 kg/T) conventional zinc oxide with zinc oxide substitutes will release acidification of 10 kg citric acid buffered with 3 kg zinc oxide in a diet of piglets containing 10 kg/T citric acid.

The following is a summary of some of the usefulness of future production from this experience:

1 If you use high-dose zinc oxide in your diet and the ABC4 value of your diet is not high (for example, higher than 650 meq/kg), you must add organic acids to control the strong binding of zinc oxide to the acid, or use Other zinc sources replace high-dose zinc oxide.

2 Adding low-dose organic acids (1-3 kg/T) in high-dose zinc oxide diets is meaningless because the acidity of organic acids is neutralized by zinc oxide. If you use an acidifier for the sole purpose of eliminating the effect of zinc oxide on the acidity of your diet, then if you do, you will increase the cost of using zinc oxide.

3 When other zinc sources are used to replace high-dose zinc oxide to reduce dietary ABC4, the amount of organic acids added to the diet can be reduced, thereby reducing feed costs.

4 In low-ABC4 diets using high-dose zinc oxide surrogates, high doses of organic acids will exert greater bacteriostatic and bactericidal effects.