Effects of supplementation of sepiolite and humate to beef cattle concentrate on pellet quality characteristics

Abstract

The aim of this study was to evaluate some pelleting characteristics of beef cattle concentrate with added sepiolite and potassium humate alone or combined. For this purpose, one control group (basal concentrate) with no additive and five treatment groups with 1% sepiolite (S), 0.25% potassium humate (H-25), 0.50% potassium humate (H-50), 1% sepiolite + 0.25% potassium humate (SH-25) and 1% sepiolite + 0.50% potassium humate (SH-50) added as top-dressed into mixer were used. For each experimental group, a total of 36 tons of pellet concentrates were produced in six batches with 6 tons per batch. The basal pelleted concentrate included 90.29% dry matter, 14.51% crude protein, 11.76% crude fibre and 3.14% ether extract. Results showed that adding sepiolite up to 1% in beef cattle concentrate as top-dressed in mixer reduced moisture losses and improved the durability of pelleted feed. Sepiolite addition also lowered pellet water activity during storage. Adding potassium humate alone up to 0.50% was not enough to improve the pellet quality in terms of durability or water activity. Potassium humate supplementation alone or with sepiolite presented with lower moisture losses than control, and it was more evident during storage. In conclusion, the use of sepiolite in beef cattle concentrates as pellet binder seemed to be providing more durable feed pellets with lower water activity. Promising results were obtained from both the supplements in limiting the moisture losses post- pelleting and storage. Regarding the role of potassium humate as pellet binder in animal feed industry further research is needed. 

Keywords

• Beef cattle,concentrate feed,pellet quality,potassium humate,sepiolite

References

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