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| Видима загальна перетравність у травному каналі× | Газова продукція in vitro (IVGP)× | |
|---|---|---|
| Галузь | Ветеринарія | Ветеринарія |
| Родина | Process / pipeline | Process / pipeline |
| Рік появи≠ | 1970 | 1994 |
| Автор методу≠ | Agricultural Research Community | Michail K. Theodorou |
| Тип≠ | Balance Study Methodology | Biochemical Assay |
| Основоположне джерело≠ | 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 ↗ | 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 ↗ |
| Інші назви | ATTD, digestibility coefficient, fecal digestibility | IVGP, gas production technique, fermentation assay |
| Пов'язані | 3 | 3 |
| Підсумок≠ | 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. | 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. |
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