The beneficial effects of pelleted feed on digestibility of
nutrients may arise from their influence on intestinal
morphology, but the published data on this aspect are so
scanty. The only available research (Amerah et al., 2007b)
related to this line of research was focused on starter
broilers (0-21 d), not growers (22-42 d). Villi and crypts are
the functional units of the small intestine, assuming the role
of digestion and absorption. The morphological alterations
of the intestine will affect function, secretion of digestive enzymes and absorption of nutrients. The objectives of this
study were to compare the effect of feed particle size and
feed form on growth performance, nutrient metabolizability,
and intestinal morphology in broilers during starter, grower
and overall period.
The beneficial effects of pelleted feed on digestibility ofnutrients may arise from their influence on intestinalmorphology, but the published data on this aspect are soscanty. The only available research (Amerah et al., 2007b)related to this line of research was focused on starterbroilers (0-21 d), not growers (22-42 d). Villi and crypts arethe functional units of the small intestine, assuming the roleof digestion and absorption. The morphological alterationsof the intestine will affect function, secretion of digestive enzymes and absorption of nutrients. The objectives of thisstudy were to compare the effect of feed particle size andfeed form on growth performance, nutrient metabolizability,and intestinal morphology in broilers during starter, growerand overall period.
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