Effect of whole and demucilaged linseed in broiler chicken diets on digesta viscosity, nutrient utilisation and intestinal microflora

2003 ◽  
Vol 44 (1) ◽  
pp. 67-74 ◽  
Author(s):  
C. Alzueta ◽  
M.L. RodrÍguez ◽  
M.T. Cutuli ◽  
A. RebolÉ ◽  
L.T. Ortiz ◽  
...  
Keyword(s):  
Broiler Chicken ◽  
Intestinal Microflora ◽  
Nutrient Utilisation ◽  
Digesta Viscosity

scholarly journals Exogenous dietary xylanase ameliorates viscosity-induced anti-nutritional effects in wheat-based diets for White Pekin ducks (Anas platyrinchos domesticus)

2004 ◽  
Vol 92 (1) ◽  
pp. 87-94 ◽  
Author(s):  
Olayiwola Adeola ◽  
Michael R. Bedford
Keyword(s):  
Weight Gain ◽  
High Viscosity ◽  
Diet Group ◽  
Pekin Ducks ◽  
Low Viscosity ◽  
Nutritional Effect ◽  
Nutrient Utilisation ◽  
Metabolisable Energy ◽  
Nutritional Effects ◽  
Digesta Viscosity

Nutrient utilisation and growth performance responses of White Pekin ducks (Anas platyrinchos domesticus) offered diets containing low- or high-viscosity wheat supplemented with xylanase were investigated in two studies. In Expt 1, six diets consisting of low-viscosity wheat or high-viscosity wheat supplemented with 0·0, 1·5 or 3·0 g xylanase (2590 units/g)/kg diet were used in a true metabolisable energy (TME) bioassay with eight 8-week-old ducks per diet group. In Expt 2, eight pens of ten 3-d-old ducks per pen for each of six wheat-based diets arranged in a 2×3 factorial of low-viscosity or high-viscosity wheat and 0·0, 1·5 or 3·0 g xylanase/kg were used in a 42 d growth study. High-viscosity wheat depressed (P>0·001) TME and xylanase supplementation improved (P>0·001) TME, more so for high-viscosity than low-viscosity wheat. Xylanase supplementation of the high-viscosity wheat-based diet improved (P>0·05) weight gain and gain:feed ratio by 13 and 12% respectively. There was no weight gain or gain:feed ratio response to xylanase supplementation of the low-viscosity wheat-based diet. Xylanase supplementation reduced (P>0·001) the viscosity of duodenal and ileal digesta for high-viscosity but not low-viscosity wheat-based diets. Ileal digestibilities of nutrients and energy were higher (P>0·001) for low-viscosity than high-viscosity wheat-based diets; xylanase supplementation improved (P>0·05) energy, fat, N and starch digestibilities. Given that xylanase supplementation of high-viscosity wheat assuaged its anti-nutritional effect, it is surmised that digesta viscosity plays a role in anti-nutritional effects in wheat-based diets for ducks.

Wheat- and barley-based diets with or without additives influence broiler chicken performance, nutrient digestibility and intestinal microflora

2011 ◽  
Vol 92 (1) ◽  
pp. 184-190 ◽  
Author(s):  
María Luisa Rodríguez ◽  
Almudena Rebolé ◽  
Susana Velasco ◽  
Luis T Ortiz ◽  
Jesús Treviño ◽  
...  
Keyword(s):  
Broiler Chicken ◽  
Intestinal Microflora ◽  
Nutrient Digestibility

Feeding value in broiler chicken diets of a potato expressing a β-glucanase gene from Fibrobacter succinogenes

2002 ◽  
Vol 82 (1) ◽  
pp. 111-113 ◽  
Author(s):  
J. Baah ◽  
T. A. Scott ◽  
L. M. Kawchuk ◽  
J. D. Armstrong ◽  
L. B. Selinger ◽  
...  
Keyword(s):  
Key Words ◽  
Broiler Chickens ◽  
Broiler Chicken ◽  
Potato Cultivar ◽  
Transgenic Potato ◽  
Fibrobacter Succinogenes ◽  
Feed Conversion ◽  
Key Words Barley ◽  
Feeding Value ◽  
Digesta Viscosity

Including a transgenic potato cultivar as a source of β-glucanase in CDC Silky barley-based diets for broiler chickens at 0.6 kg t–1 improved (P < 0.05) feed conversion by 8.8%; at 1.2 kg t–1 it reduced (P < 0.05) ileal digesta viscosity by 42%. With improved level and/or activity of expression, transformed potato may have potential as an enzyme additive. Key words: Barley, broilers, β-glucanase, performance, transformed potato

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