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Nutritive value and effect of different levels of rubber seed kernel in total mixed ratio on digestibility using In Vitro gas production technique |
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| รหัสดีโอไอ | |
| Creator | Chalong Wachirapakorn |
| Title | Nutritive value and effect of different levels of rubber seed kernel in total mixed ratio on digestibility using In Vitro gas production technique |
| Contributor | Nawarat Pha-obnga, Suneerat Aiumlamai |
| Publisher | Research and Technology Transfer Affairs Division.Khon Kaen University |
| Publication Year | 2559 |
| Journal Title | Asia-Pacific Journal of Science and Technology |
| Journal Vol. | 21 |
| Journal No. | 3 |
| Page no. | 44-62 |
| Keyword | rubber seed kernel, chemical composition, fatty acid profiles, in vitro, dairy cattle |
| URL Website | https://tci-thaijo.org/index.php/APST/index |
| Website title | https://tci-thaijo.org/index.php/APST/article/view/69521 |
| ISSN | 2539-6293 |
| Abstract | The aims of this experiment were to study the chemical composition, fatty acid profiles, toxic compound of rubber seed kernel (RSK) and the effect of different levels of RSK in total mixed ration (TMR) on digestibility using in vitro gas production technique. Rubber seeds were shelled and sun dried for 12 days and were then used for chemical composition, fatty acid profiles and in vitro study. For the in vitro study, RSK was used in TMR at 0, 6.81, 13.63, 20.44 and 27.25%. Moisture, ash, crude protein (CP), ether extract (EE), neutral detergent fiber (NDF) and acid detergent fiber (ADF) of RSK were 2.43, 2.84, 19.82, 47.67, 20.87 and 17.07% dry matter (DM), respectively. Linoleic, oleic and linolenic acid were the most unsaturated fatty acid (37.82, 25.12 and 17.64%, respectively). Hydrocyanic acid (HCN) and aflatoxin content in RSK were 80.26 mg/kg and 316.75 ?g/kg, respectively. Cumulative gas production (GP), potential GP (a+b), GP from the insoluble fraction (b) and fraction rates of GP (c) were different (p<0.01) among dietary treatments. Increasing RSK levels (>13.63%) resulted in lower cumulative GP, a+b and b than dietary treatments at 0, 6.81 and 13.63% RSK. In vitro dry matter digestibility (IVDMD) at 48 h and in vitro organic matter digestibility (IVOMD) at 24 and 48 h were decreased (p<0.01) when RSK levels were increased in TMR. Similarly, the estimated metabolized energy (ME) also decreased as RSK levels were increased. This study indicated that RSK could be used up to 13.63% in TMR for dairy cattle. |
