Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 530243
Title Effects of β-Glucans and resistant starch on fermentation of recalcitrant fibers in growing pigs
Author(s) Vries, S. de; Gerrits, W.J.J.; Kabel, M.A.; Zijlstra, Ruurd; Vasanthan, Thava
DOI https://doi.org/10.4121/uuid:e0ef1135-879d-4462-954b-35972dd9fa0e
Department(s) Animal Nutrition
WIAS
Food Chemistry Group
VLAG
Publication type Dataset
Publication year 2017
Keyword(s) animal nutrition - carbohydrate structures - digestibility measurements - fermentable fibers - food chemistry - growing pigs - in vivo digestion - nutritional modelling - rapeseed meal
Abstract Effects of the presence of β-glucans and resistant starch in diets on nutrient and fiber degradability of rapeseed meal [RSM] (Brassica napus) and Distillers Dried Grain with Solubles (DDGS) were tested in a 2 × 3 factorial arrangement. Two basal diets, containing either 500 g/kg RSM or DDGS and ~400 g/kg corn starch were formulated to meet or exceed nutrient requirements of growing pigs. Corn starch was partly replaced with the β-glucan-extract (β-GLUC; 60 g/kg w/w) or completely replaced with retrograded tapioca (RG; 400 g/kg w/w), resulting in 6 dietary treatments. A total of 10 crossbred barrows (initial body weight, 28 ± 1.4 kg (SD); Duroc × Large White/Landrace; Hypor, Inc., Regina, SK, Canada) were fed the 6 experimental diets. In total, 46 observations were obtained in 10 pigs over 7 periods in an incomplete 10 × 7 Youden square. Each of 7 sequential 14 days experimental periods consisted of a 9 days adaption to the diets followed by 2 days collection of feces, 2 days collection of ileal digesta for digestibility measurements, and 1 day collection of ileal digesta for the measurement of retention time. Pigs were weighed weekly during the experiment after consuming their morning meal. Feces were collected from 08.00 to 17.00 h using bags attached to rings glued around the anus. Bags were collected within 1 h after defecation and immediately frozen (-20 °C). Ileal digesta for digestibility measurements were collected from 08.00 to 17.00 h into plastic bags (10 cm in length and 4 cm in diameter). The bags were removed when filled approximately 70 % with digesta, or after a maximum of 1 h, and immediately frozen (-20 °C). For retention time measurements, on day 14 of each experimental collection, 3.4 g Cr as Cr2O3 (solid phase marker) and 3.4 g Co as Co (II)-EDTA (soluble phase marker) were mixed into the morning meal. Digesta were collected at 45, 90, 180, 270, 360, 540, and 720 min after feed consumption.
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