What question did this study set out to answer?

To determine posthatch morphological and functional changes in the small intestines of heavy- and light-strain chicks alongside digestion rates, enzyme secretion, and passage time.

October 1, 1995Poultry ScienceOpen Access

Posthatch Changes in Morphology and Function of the Small Intestines in Heavy- and Light-Strain Chicks

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Authors

ZUZehava UniHebrew University of Jerusalem YNY. Ian NoyWeizmann Institute of Science DSD. SklanBen-Gurion University of the Negev

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Implication

Comparative study reveals strain-dependent differences in early gut morphology and digestive kinetics in posthatch chicks, indicating that feed intake governs initial nutrient uptake.

Key Points

To determine posthatch morphological and functional changes in the small intestines of heavy- and light-strain chicks alongside digestion rates, enzyme secretion, and passage time.
Assessed heavy-strain (Arbor Acres) and light-strain (Lohman) chicks between Day 4 and Day 14 posthatch.
Quantified small intestinal morphology (villus height, volume, and enterocyte density in jejunum and ileum), duodenal enzyme secretion, passage time, and digestion rates of fatty acids, nitrogen, and starch.
Arbor Acres chicks displayed greater villus volume and enterocyte density from hatch, higher duodenal enzyme secretion per gram of feed on Day 4, and a 50% longer passage time on Day 4 compared to Lohman chicks, with transit differences disappearing by Day 10.
Nitrogen digestion increased from approximately 70% on Day 4 to near 90% on Day 14 across both strains, with no observed differences in fatty acid digestion by age or strain.
Starch digestion remained between 90% and 95% from Day 4 to 14 in Arbor Acres chicks, whereas Lohman chicks increased from approximately 80% on Day 4 to 93% on Day 14.

Cite This Study

Uni et al. (1995) studied this question.

synapsesocial.com/papers/6a8a8a4fab4588dbccfba84c https://doi.org/10.3382/ps.0741622

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Implication

Comparative study reveals strain-dependent differences in early gut morphology and digestive kinetics in posthatch chicks, indicating that feed intake governs initial nutrient uptake.

Posthatch Changes in Morphology and Function of the Small Intestines in Heavy- and Light-Strain Chicks

Discussion

Member takes

Implication

Key Points

Cite This Study

Posthatch Changes in Morphology and Function of the Small Intestines in Heavy- and Light-Strain Chicks

Discussion

Member takes

Implication

Key Points

Cite This Study

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