Growth performance and nutrient digestibilities in nursery pigs receiving varying doses of xylanase and ▀-glucanase blend in pelleted wheat- and barley-based diets

In 2 experiments, dose response efficacy of a xylanase and beta-glucanase blend (XB) on growth performance and ileal nutrient digestibility was investigated in nursery pigs fed pelleted wheat (Triticum aestivum)- and barley (Hordeum vulgare)-based diets. A basal diet (meeting NRC [1998] specifications for 6 to 30 kg BW, except for 5% lower DE) was supplemented with XB to give 4 diets (0, 50, 100, and 200 g/t). The xylanase and ▀-glucanase blend was formulated to contain guaranteed activity of 12,200 and 1520 units/g, respectively. In Exp.1, 192 nursery pigs (initial BW of 6.5 kg) were randomly assigned to 4 diets to give 12 pens (4 pigs/pen) per diet to study growth performance for 42 d. In Exp. 2, apparent ileal digestibility (AID) of energy and AA was evaluated in 4 individually housed ileal-cannulated barrows (21 kg BW) according to a 4 Î 4 Latin square design. In Exp. 1, XB linearly and quadratically increased (P < 0.05) G:F compared with control. Adding 200 g/t increased overall G:F by 20% compared with control. In Exp. 2, XB linearly increased (P < 0.05) AID of DM, CP, energy, and AA. In conclusion, supplemental xylanase and ▀-glucanase in nursery pelleted wheat- and barley-based diets deficient in DE increased energy and nutrient use, resulting in better G:F. In conclusion, an enzyme product containing a combination of xylanase and ▀-glucanase allowed young pigs to derive more nutrients and energy in a wheat- and barley-based diet deficient in energy.

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Product / service:	Carbohydrases and Proteases
Publication date:	01/01/2012
Species:	Pig, Nursery/piglet
Authors:	Owusu-Asiedu A, Kiarie E, Peron A, Woyengo TA, Simmins PH, Nyachoti CM
Doctype:	Publications & Citations
Publication / conference:	J Anim Sci, volume 90, Suppl. 4
Regions and countries:	Global
Keywords:	growth, performance, nutrient, digestibility, digestibilities, pigs, pig, dose, xylanase, wheat, barley, based, diet, diets
Production challenge(s):	Gut health
Diets:	Wheat, rye and tricale containing by-products, Wheat, rye & triticale, Barley/Oats
Brands:	Axtra® AB, Axtra® PHY, Optimize Feed, Phyzyme® XP, Phycheck, Danisco Xylanase, FASTKit assay
Resource ref:	11624
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Growth performance and nutrient digestibilities in nursery pigs receiving varying doses of xylanase and ▀-glucanase blend in pelleted wheat- and barley-based diets

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