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Related Experiment Videos

Posthatch development of mucosal function in the broiler small intestine

Z Uni1, S Ganot, D Sklan

  • 1Faculty of Agriculture, Hebrew University, Rehovot, Israel.

Poultry Science
|February 20, 1998
PubMed
Summary

Delayed feeding in broilers significantly impacts small intestinal development, affecting morphology and enzyme activity more than yolk sac nutrients. Early nutrition is critical for optimal gut maturation.

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Area of Science:

  • Animal Science
  • Gastroenterology
  • Poultry Nutrition

Background:

  • Early intestinal development is crucial for broiler growth and nutrient utilization.
  • Understanding the impact of nutritional management on gut morphology and function is essential.

Purpose of the Study:

  • To investigate the effects of delayed feeding and deutectomy on broiler small intestine development.
  • To analyze changes in morphology, cellular development, and enzyme activity from hatch to 14 days.

Main Methods:

  • Broilers were studied from hatch to 14 days.
  • Experimental groups included controls, birds fasted for 36 hours, and deutectomized birds.
  • Morphological and enzymatic analyses were performed on duodenum, jejunum, and ileum.

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Main Results:

  • Intestinal development was rapid post-hatch, with site-specific differences in growth rates.
  • Delayed feeding impaired mucosal development, causing microvilli clumping and abnormal crypts.
  • Deutectomy initially slowed growth but was compensated; yolk nutrients were less critical than a 36-hour feed withdrawal.

Conclusions:

  • Nutrient supply from the yolk sac is less critical for mucosal development than early post-hatch feeding.
  • Withholding feed for 36 hours significantly delays normal intestinal development in broilers.
  • Site-specific differences in intestinal development highlight the need for tailored nutritional strategies.