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Publication
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| Title of Article |
Ruminal Degradability and Bypass Nutrients of Cassava Chips and Corn Grain After
Modification Determined using In Situ Nylon Bag and In Vitro Gas Production Techniques |
| Date of Acceptance |
28 June 2021 |
| Journal |
| Title of Journal |
Tropical Animal Science Journal |
| Standard |
ISI |
| Institute of Journal |
Faculty of Animal Science Building, Bogor Agricultural University Jln. Agatis, Kampus IPB Darmaga, Bogor Indonesia 16680 Phone/Fax: +62 251 8421692 |
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| Volume |
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| Year of Publication |
2021 |
| Page |
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| Abstract |
Modification of starches in high-energy feeds using various treatment methods led to diverse effects on ruminal degradation and bypass protein and starch. Thus, the objectives were to investigate the effects of modification methods applied to high-starch energy feed sources on ruminal degradability and bypass nutrients determined using in situ and in vitro gas production techniques. This experiment designed using a 2×4 factorial arrangement in a completely randomized design (CRD) including two high-starch energy feeds (corn grain and cassava chips), and four treating methods (no treatment, steam treatment, NaOH treatment, and steam with NaOH treatment). Chemical composition, ruminal in situ disappearance, bypass of crude protein (CP) and non-fiber carbohydrate (NFC), and gas production characteristics were measured in pre-treated and post-treated samples. The results showed that a significant interaction (P<0.01) between high-starch energy feed sources and treating methods were observed with respect to CP, ether extract (EE), and NFC, degradability of dry matter (DMD), effective degradation (ED), and effective gas production (EP). Cassava chips had lower CP and EE but higher NFC, DMD, ED, and EP (P<0.01) compared with corn grain. Treating methods has no influence on CP and EE (P>0.05) in both cassava chips and corn grain. DMD, ED, and EP of treated cassava chips were lower while bypass CP and bypass NFC of treated cassava chips were higher than untreated cassava chips (P<0.05). On the contrary, treated corn grain led to higher DMD, ED, and EP, but lower bypass CP and bypass NFC than untreated corn grain did (P<0.01). DMD and gas production characteristics in cassava chips and corn grain showed significant correlations between in situ nylon bag and in vitro gas production techniques within each high-starch energy feed source. In conclusion, steam and NaOH treatments are two alternative methods that can modify the starches of high-starch energy feeds to alter ruminal degradation by decreasing solubility and degradability in cassava chips but increasing degradability in corn grain. |
| Keyword |
Keywords: Cassava chips, Corn grain, Bypass starch, Steam treatment, NaOH treatment |
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| Reviewing Status |
มีผู้ประเมินอิสระ |
| Status |
ได้รับการตอบรับให้ตีพิมพ์ |
| Level of Publication |
นานาชาติ |
| citation |
true |
| Part of thesis |
true |
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| Citation |
0
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Journal Publication
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