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| 반추위 생체 외 가스 생산× | 겉보기 총 소화관 소화율× | |
|---|---|---|
| 분야 | 수의과학 | 수의과학 |
| 계열 | Process / pipeline | Process / pipeline |
| 기원 연도≠ | 1994 | 1970 |
| 창시자≠ | Michail K. Theodorou | Agricultural Research Community |
| 유형≠ | Biochemical Assay | Balance Study Methodology |
| 원전≠ | Theodorou, M. K., Williams, B. A., Dhanoa, M. S., McAllan, A. B., & France, J. (1994). A simple gas production method using a pressure transducer to determine fermentation kinetics of ruminant feeds. Animal Feed Science and Technology, 48(3-4), 185-197. DOI ↗ | Adeola, O. (2001). Digestion and balance techniques in pigs. In A. J. Lewis & L. L. Southern (Eds.), Swine Nutrition (2nd ed., pp. 903-916). CRC Press. link ↗ |
| 별칭 | IVGP, gas production technique, fermentation assay | ATTD, digestibility coefficient, fecal digestibility |
| 관련 | 3 | 3 |
| 요약≠ | The In Vitro Gas Production (IVGP) assay is a laboratory method that measures the fermentation kinetics of animal feeds by incubating feed samples with rumen microorganisms in controlled conditions and monitoring the volume of gas produced over time. Developed by Theodorou and colleagues in 1994, IVGP provides rapid, cost-effective estimates of feed nutritive value, digestibility, and energy availability, making it valuable for feed evaluation, diet formulation, and research on rumen fermentation dynamics. | Apparent Total Tract Digestibility (ATTD) is a measure of the proportion of a nutrient consumed in feed that is absorbed by the animal, calculated from the difference between dietary intake and fecal excretion. Standardized since the 1970s, ATTD is essential for quantifying the bioavailability of nutrients in feedstuffs, formulating balanced diets, and comparing the nutritive value of different feed ingredients across diverse animal species. |
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