Fibre is a species-dependent value, not a defect
For broilers and young pigs, fibre dilutes energy and can depress performance. For ruminants and adult sows, structural fibre supports rumen function and satiety. The same specification is a constraint in one diet and a benefit in another.
Why crude fibre understates reality
The crude fibre method dissolves part of the hemicellulose and lignin, so it recovers only a fraction of true dietary fibre. Where fibre drives the formulation decision, specify NDF and ADF instead of, or in addition to, crude fibre.
Типичные отраслевые значения
| Dehulled soybean meal | 3–4% CF | Hulls removed |
| Standard soybean meal | 6–7% CF | |
| Sunflower meal | 12–24% CF | Dehulling degree dominates |
| Wheat bran | 10–12% CF | High NDF, used for structure |
Indicative industry reference values for orientation only — always contract against the delivered lot.
Что проверить
- —Which fibre method the certificate reports
- —Dehulling degree for oilseed meals
- —NDF/ADF where the diet is ruminant or high-fibre monogastric
Типичные риски
- —Energy dilution beyond the formulation assumption
- —Pellet quality and throughput changes
- —Inconsistent hull inclusion between shipments
Частые ошибки
- —Treating crude fibre and NDF as interchangeable
- —Setting a single fibre maximum across species with different requirements
Частые вопросы
Should I specify crude fibre or NDF?
Specify crude fibre for a simple commercial guardrail and NDF/ADF when fibre is nutritionally decisive — ruminant diets, high-fibre sow diets, or any formulation where structure is being purchased deliberately.
Смежные темы
Digestibility expresses the proportion of a nutrient the animal can actually absorb; it converts an analytical composition into a nutritional value.
Energy values are calculated or measured estimates of the usable energy an ingredient delivers to a specific species; they are matrix values, not analytical certificates.
Particle size distribution governs mixing homogeneity, pellet quality, digestive efficiency and segregation risk, and is specified as a geometric mean diameter with a distribution, not a single sieve figure.
Соберите структурированный запрос с параметрами, допусками и этапами проверки — бесплатно для покупателей.
Начать запросНазвания технических параметров и методов анализа приведены на английском, поскольку именно так они цитируются в контрактах, сертификатах и международных стандартах.
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