During the adaptation period from 8 to 15 d, the birds fed the whole wheat diet had lower feed
intake and lower weight gain. Thereafter, they showed improved growth performance so that by the
end of the experiment, they had higher body weight compared to the standard-fed birds, 2430 ± 29
versus 2331 ± 36 g.
Higher relative weights of gizzard (+26%) and pancreas (+12%) were observed from 16 to 44 d for
whole wheat-fed birds compared to standard-fed birds. No differences in relative size of the different
intestinal segments were observed, except that the jejunum was shorter. Increased villus to crypt
length and surface ratios were observed at 23 d in the duodenum of whole wheat-fed birds, with no differences in morphometry between groups thereafter. Alkaline phosphatase activity was higher
from 16 to 44 d in the duodenum and jejunum of whole wheat-fed birds. However, the activities of
the digestive enzymes, leucine aminopeptidase and maltase, were similar between the two diets in the
measured intestinal segments.
A lower number of facultative anaerobic bacteria was found in the ileum of the whole
wheat-fed birds, with no differences between treatments for Escherichia coli and for Lactobacillus
counts. In the jejunum and the caeca, no differences in microflora counts were
observed.
The present results showed that feeding whole grains to broilers led mainly to modifications in the
upper part of the digestive tract (gizzard, pancreas) and had little influence on the small and large
intestine.no differences in morphometry between groups thereafter. Alkaline phosphatase activity was higher
from 16 to 44 d in the duodenum and jejunum of whole wheat-fed birds. However, the activities of
the digestive enzymes, leucine aminopeptidase and maltase, were similar between the two diets in the
measured intestinal segments.
A lower number of facultative anaerobic bacteria was found in the ileum of the whole
wheat-fed birds, with no differences between treatments for Escherichia coli and for Lactobacillus
counts. In the jejunum and the caeca, no differences in microflora counts were
observed.
The present results showed that feeding whole grains to broilers led mainly to modifications in the
upper part of the digestive tract (gizzard, pancreas) and had little influence on the small and large
intestine.
During the adaptation period from 8 to 15 d, the birds fed the whole wheat diet had lower feedintake and lower weight gain. Thereafter, they showed improved growth performance so that by theend of the experiment, they had higher body weight compared to the standard-fed birds, 2430 ± 29versus 2331 ± 36 g.Higher relative weights of gizzard (+26%) and pancreas (+12%) were observed from 16 to 44 d forwhole wheat-fed birds compared to standard-fed birds. No differences in relative size of the differentintestinal segments were observed, except that the jejunum was shorter. Increased villus to cryptlength and surface ratios were observed at 23 d in the duodenum of whole wheat-fed birds, with no differences in morphometry between groups thereafter. Alkaline phosphatase activity was higherfrom 16 to 44 d in the duodenum and jejunum of whole wheat-fed birds. However, the activities ofthe digestive enzymes, leucine aminopeptidase and maltase, were similar between the two diets in themeasured intestinal segments.A lower number of facultative anaerobic bacteria was found in the ileum of the wholewheat-fed birds, with no differences between treatments for Escherichia coli and for Lactobacilluscounts. In the jejunum and the caeca, no differences in microflora counts wereobserved.The present results showed that feeding whole grains to broilers led mainly to modifications in theupper part of the digestive tract (gizzard, pancreas) and had little influence on the small and largeintestine.no differences in morphometry between groups thereafter. Alkaline phosphatase activity was higherfrom 16 to 44 d in the duodenum and jejunum of whole wheat-fed birds. However, the activities ofthe digestive enzymes, leucine aminopeptidase and maltase, were similar between the two diets in themeasured intestinal segments.A lower number of facultative anaerobic bacteria was found in the ileum of the wholewheat-fed birds, with no differences between treatments for Escherichia coli and for Lactobacilluscounts. In the jejunum and the caeca, no differences in microflora counts wereobserved.The present results showed that feeding whole grains to broilers led mainly to modifications in theupper part of the digestive tract (gizzard, pancreas) and had little influence on the small and largeintestine.
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