Rumen fermentation and performance of Hanwoo steers fed total mixed ration with Korean rice wine residue
| Autor: | Jong Youl Ko, Keun Kyu Park, Lovelia L. Mamuad, Sang-Suk Lee, Chang-Dae Jeong, Yookyung Lee, Ha Guyn Sung |
|---|---|
| Jazyk: | angličtina |
| Předmět: |
0301 basic medicine
Hanwoo steers Veterinary (miscellaneous) By-products Total mixed ration Biology Biochemistry Genetics and Molecular Biology (miscellaneous) 03 medical and health sciences Rumen Residue (chemistry) In vitro Ruminal fermentation Food science health care economics and organizations lcsh:SF1-1100 Wine Ecology Research digestive oral and skin physiology 0402 animal and dairy science food and beverages 04 agricultural and veterinary sciences 040201 dairy & animal science 030104 developmental biology Hanwoo Animal Science and Zoology Fermentation lcsh:Animal culture Korean rice wine residue Food Science |
| Zdroj: | Journal of Animal Science and Technology Journal of Animal Science and Technology, Vol 58, Iss 1, Pp 1-7 (2016) |
| ISSN: | 2055-0391 |
| DOI: | 10.1186/s40781-016-0084-6 |
| Popis: | Background This study was conducted to evaluate the effects of adding Korean rice wine residue (RWR) in total mixed ration (TMR) on in vitro ruminal fermentation and growth performance of growing Hanwoo steers. Methods For in vitro fermentation, the experimental treatments were Control (Con: 0 % RWR + TMR), Treatment 1 (T1: 10 % RWR + TMR), and Treatment 2 (T2: 15 % RWR + TMR). The rumen fluid was collected from three Hanwoo steers and mixed with buffer solution, after which buffered rumen fluid was transferred into serum bottles containing 2 g dry matter (DM) of TMR added with or without RWR. The samples were then incubated for 0 h, 12 h, 24 h, or 48 h at 39 °C and 100 rpm. For the in vivo experiment, 27 Hanwoo steers (6 months old) with an average weight of 196 ± 8.66 kg were subjected to a 24-week feeding trial. The animals were randomly selected and equally distributed into three groups. After which the body weight, feed intake and blood characteristics of each group were investigated. Results The pH of the treatments decreased significantly relative to the control during the 12 h of incubation. Total gas production and ammonia nitrogen (NH3-N) was not affected by RWR addition. The total volatile fatty acid (VFA) was lower after 24 h of incubation but at other incubation times, the concentration was not affected by treatments. Feed cost was 8 % and 15 % lower in T1 and T2 compared to control. Blood alcohol was not detected and a significant increase in total weight gain and average daily gain were observed in Hanwoo steers fed with RWR. Conclusion Overall, the results of this study suggest that TMR amended with 15 % RWR can be used as an alternative feed resource for ruminants to reduce feed cost. |
| Databáze: | OpenAIRE |
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