Characterisation of undigested components throughout the gastrointestinal tract of broiler chickens fed either a wheat- or maize-based diet
| Autor: | Mingan Choct, Peter Ader, Lily Li, Eunjoo Kim, Amy F. Moss, Natalie Morgan |
|---|---|
| Rok vydání: | 2022 |
| Předmět: |
Starch
Broiler chicken digestive oral and skin physiology Broiler food and beverages Ileum Biology SF1-1100 Small intestine Animal culture Nutrient digestibility Jejunum chemistry.chemical_compound medicine.anatomical_structure Animal science Food Animals chemistry medicine Animal Science and Zoology Dry matter Original Research Article Undigested dietary component Common wheat Gizzard |
| Zdroj: | Animal Nutrition Animal Nutrition, Vol 8, Iss 1, Pp 153-159 (2022) |
| ISSN: | 2405-6545 |
| DOI: | 10.1016/j.aninu.2021.09.011 |
| Popis: | This study was to characterise the undigested nutrients present along the gastrointestinal tract of birds offered common wheat- or maize-based diets, with the goal of optimising utilisation of enzymes to enhance digestive efficiency. Wheat- and maize-based diets were offered to 240 mixed-sex broilers (10 birds/pen; n = 12) from 1 to 35 d post–hatch. Digestibility of dry matter, starch, crude protein and non-starch polysaccharides (NSP) were measured in the crop, gizzard, duodenum, jejunum, ileum, caeca and excreta at d 12 and 35 post–hatch. Analysis of nutrient levels in the excreta presented that more than 30% of nutrients provided in the feed was wasted, irrespective of wheat or maize diet type. On average, 92 g/kg crude protein, 92 g/kg insoluble NSP and 14 g/kg oligosaccharides were not utilised by birds at d 12 post–hatch. The quantity of water-insoluble NSP in the small intestine at d 12 was lower in birds offered the wheat-based diet compared to those fed the maize-based diet (P |
| Databáze: | OpenAIRE |
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