| An Estimation on the Feeding Values of Urea-mixed Zeolite In Vitro |
|
Jae Ku Rhee, Ho Il Lee |
|
Department of Veterinary Medicine, College of Agriculture, Jeonbug National University |
| In Vitro에 의한 제올라이트·요소합제(尿素合劑)의 사료효율(飼料效率) 판정(判定) |
|
이재구, 이호일 |
|
경북대학교 농과대학 수의학과 |
|
|
| Abstract |
|
In order to estimate the efficiency of feed added urea-mixed zeolite the experiment was carried on in vitro. The results obtained were as follows: 1. The pH of all media added urea were inclined toward alkali, except 1% urea (included 99% zeolite) medium. 2. The concentration of ammonia in all media added urea-mixed zeolite was inversely proportional to added volume of zeolite; 1,349, 1,298, 1,255, 1,164 and $786{mu}g/ml$ in 40%, 20%, 10%, 5% and 1% urea media respectively for 30 minutes incubation, and the concentration of ammonia in all media was increased steadily as incubation time proceeded until 9 hours. 3. The efficiency of adsorption of ammonia to zeolite of the feed added 40% urea mixture (dealing in the feed store) was hardly recognized. Accordingly, it is efficient to utilize the feed added 1~5% urea mixture, but it is of no use practica11y because they need much amount of zeolite. |
|
PDF Links
Full text via DOI
Download Citation
