Abstract
Impact of Single or Co-Dietary Inclusion of Native or Methylated Soy Protein Isolate on Growth Performance, Intestinal Histology and Immune Status of Broiler Chickens
Highlights
Soybean is the main plant protein source used for most simple stomached animals and poultry
Biochemical Parameters Of Blood Concerning to the biochemical data represented at Table (5), comparing to the control group, broilers fed on native soy protein isolate (NSPI) and / or methylated soy protein isolate (MSPI) showed a significant (P ≤ 0.05) increase at the serum levels of total proteins and total globulins as a result of increasing γ – globulins concentration and showed marked elevation at the growth hormone level with a significant (P ≤ 0.05) decrease at A/G ratio
Intestinal Histology The results of intestine histology was shown in Table (7) revealed that duodenal villus tall, duodenal villus width, duodenal crypt depth and duodenum mucosal thickness were significantly (P≤ 0.05) increased in broiler chickens fed on diets supplemented with 2% NSPI and 1%NSPI : 1%MSPI
Summary
Soybean is the main plant protein source used for most simple stomached animals and poultry. Soybeans contain high concentration of anti-nutritional factors, which affect small intestine characteristics and potential of gastro intestinal enzyme activity and broiler growth performance and limit its inclusion in broilers diets (Marsman et al, 1997; Saki et al, 2011). These anti-nutritional factors (ANFs) affecting the growth performance of poultry include α-galactosides – raffinose, stachyose and verbascose – and antigenic factors – glycinin and β-conglycinin (Nunes et al, 2001; Jankowski et al, 2009). The present work was done to study the effect of single or co-dietary inclusion of NSPI and MSPI on the growth performance, small intestine histology and immune status of broiler chickens
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