Adsorption and structural studies on activated carbons

Stoeckli, H.F.; Huber, Ueli

doi:10.1007/bf01969576

Cited by 9 publications

(1 citation statement)

References 25 publications

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“…Activated charcoal refers to charcoal or carbon that has been processed in such a way that it has a large surface area, which allows for more binding sites (Holt and Holz, 1963). Activated carbon (activated charcoal) is usually made from sawdust, fruit stones, nutshells, coke, and coal (Stoeckli and Huber, 1977). The raw material is carbonized at temperatures of 150 to 600°C, resulting in the removal of noncarbon elements.…”

Section: Expmentioning

confidence: 99%

Activated carbon supplementation of dairy cow diets: Effects on apparent total-tract nutrient digestibility and taste preference

Erickson

Whitehouse

Dunn

2011

The Professional Animal Scientist

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The objectives of these studies were to determine whether the adverse effects of feeding poor-quality forages could be alleviated by adding activated carbon as a feed additive through observing the effect of activated carbon on apparent nutrient digestibility and taste preferences. In Exp. 1, 6 multiparous, late-lactation Holstein cows were assigned to a replicated 3 × 3 Latin square. All cows were fed a basal diet containing approximately 60% poor-quality corn silage containing the mycotoxin deoxynivalenol. The 3 treatments were 0, 20, or 40 g of activated carbon top-dressed once daily at the p.m. feeding. Cows fed activated carbon had increased DMI and apparent total-tract nutrient digestibilities of NDF, hemicellulose, and CP. Cows fed activated carbon also had increased milk fat content and showed increased BCS. In Exp. 2, 3 cannulated, primiparous, early-lactation Holstein cows were used in a 3 × 3 Latin square design. The cows were fed 0, 20, or 40 g of activated carbon per day using good-quality forage, which resulted in no differences in apparent total-tract nutrient digestibility or milk composition and yield. In Exp. 3, 6 early-lactation, primiparous Holstein cows were assigned to a sequential elimination trial with access to 0, 10, 20, 40, or 80 g/d of activated carbon in a cafeteria-style feeder to determine taste preference. Cows were fed a diet similar to that in Exp. 2. As activated carbon increased, preference for that particular feed decreased. Results indicated that activated carbon improves apparent total-tract nutrient digestibilities when cows are fed poor-quality (mycotoxin-laden) silage, but activated carbon should not be used when goodquality forage is fed.

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Section: Expmentioning

confidence: 99%