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Paper Information

Journal:   JOURNAL OF AGRICULTURAL SCIENCE AND TECHNOLOGY (JAST)   JULY-OCTOBER 2003 , Volume 5 , Number 3-4; Page(s) 105 To 112.
 
Paper: 

EFFECT OF NSP DEGRADING ENZYME SUPPLEMENT ON THE NUTRIENT DIGESTIBILITY OF YOUNG CHICKENS FED WHEAT WITH DIFFERENT VISCOSITIES AND TRITICALE

 
 
Author(s):  SHAKOURI M.D., KERMAN SHAHI H.*
 
* DEPARTMENT OF ANIMAL SCIENCE, FERDOWSI UNIVERSITY OF MASHHAD, MASHHAD, ISLANLIC REPUBLIC OF IRAN
 
Abstract: 

To study the effect of cell-wall degrading enzymes on the nutrent efficiency of young chickens fed different grains, an ill vitro experiment was conducted to determine the range of viscosities of seven local wheat varieties. From these, the highest (Flaat) and the lowest (Ghods) were selected for an ill vivo study. 288 day-old Arian chickens were kept in cages and fed one of four grains (Flaat, Ghods, Triticale, and Corn) with or without a dietary NSP degrading enzyme in a 4x2 factorial arrangement with six replicates per treatment. An indigestible marker (chromic oxide) was used for digestibility measurements. Feed and water were provided ad libitum. Excreta samples were collected from 18-21 days of the experiment. Apparent metabolizable energy corrected for nitrogen (AMEn) was improved (P<0.05) in all diets by enzyme supplementation except the corn diet. The apparent lipid digestibility (ALD) and apparent crude carbohydrate digestibility (ACCD) of all treatments were significantly improved by adding an enzyme (P<0.01). This improvement was highest in the Flaat variety (highest viscosity) of wheat. The results of this experiment clearly indicate the positive effects of supplemental NSP degrading enzymes on nutrient digestibilities and on AMEn especially for the grains with the highest viscosity (wheat cultivar Flaat and triticale).

 
Keyword(s): BROILERS, NSP DEGRADING ENZYMES, NUTRIENT DIGESTIBILITY, VISCOSITY
 
References: 
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