Skip to Content Skip to Navigation

High dosage of zinc oxide (ZnO) in piglet feed has been widely used to control post weaning diarrhoea (PWD).

In the modern pig industry, weaning generally occurs 21-28 days after birth. The administration of high dosage of ZnO usually lasts about 14 days, starting immediately after weaning. ZnO inclusion in piglets diets should reach an optimal concentration of 2500 ppm Zn (equivalent to approximately 3100 ppm ZnO). Supplementation of high dosage of ZnO not only results in the lower mortality and reduced PWD symptoms but also improves piglets’ growth performance. However, due to its negative environmental impact, the EU commission has banned the use of high dosage of ZnO in weaned piglets diets, allowing 150 ppm Zn supplementation since June 2022 and resulting in significantly increased cost of antibiotics treatments. Table 1. shows the effect of reduced ZnO concentrations on piglets performance.

Table 1. The effect of graded levels of ZnO on piglets’ performance

The coated zinc oxide has the larger surface area and coated with the enterolysis polymer material to avoid acidic stomach loss. Therefore, coated ZnO could significantly reduce ZnO supplemental levels but achieve the equivalent effect to the high dosage of ZnO. Table 2 compared the effect of normal ZnO with coated ZnO. It is clearly shown that using 1500 ppm coated ZnO (900 ppm Zn) achieved the equivalent effect on piglets’ daily gain and diarrhea rate. If supplemental level of coated ZnO is below 1500 ppm, it will compromise piglets daily gain and increase the diarrhea rate.

Table 2 The effect of graded levels of coated ZnO on piglets’ performance

A study compiled by our Redox Animal Nutritionists.
Back to all News

Posted 26 Sep 2023 in Animal Nutrition

L-Arginine application in reduced protein diets

It is well known that reduced protein diets in broiler chickens could lessen nitrogen excretion and environmental pollution. However, the successful strategy for broiler chicken production fed on reduced protein diets largely depends on...

Posted 21 Sep 2023 in Special Interest

R U OK? Day Breakfast BBQ: Fostering Connection and Support

On September 15th, we hosted a special RUOK Day Breakfast BBQ for our valued staff, serving a delectable spread of sausages, eggs, bacon rolls, and more. RUOK Day serves as a poignant reminder that any day is an opportunity to ask a simple...

Posted 21 Sep 2023 in Food and Beverage

Cooling agents bringing the freshness

Discover the ground-breaking advancements of WS23, a cooling agent that is reshaping sensory experiences across various industries with its cutting-edge technology.  2-Isopropyl- N,2,3-trimethylbutanamide, otherwise called WS23, finds...