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Feed particle size affects the growth and intestinal morphology of chickens

W. Lang, P. Hong, R. Li and others

Journal of Animal Physiology and Animal Nutrition (2018)

doi: 10.1111/jpn.13046

• What did the research find?

At 42 days of age, the feed conversion rate of pellet-fed (PF) chickens was higher than that of crumb-fed (CF) chickens, but bodyweight was lower in the PF chickens. The intestinal villi height was lower in the PF chickens than in the CF chickens, with evidence of damage at the villi tips. However, at 69 days of age, both the bodyweight and the intestinal villi height of the PF chickens were greater than those of the CF chickens.

• How was it conducted?

A total of 60 15-day-old female chickens were randomly assigned into two groups. The chickens were fed either pelleted feed with a particle size of approximately 1.2 mm or crumbled feed with a particle size of approximately 0.8 mm. Feed intake and bodyweight gain …

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