Defective Down syndrome in chicks is not caused by riboflavin deficiency in breeders

C C Whitehead, J S Rennie, Heather McCormack, Paul Hocking

Research output: Contribution to journalArticlepeer-review

Abstract

1. Riboflavin-deficient practical and semi-purified diets were fed to broiler breeder hens. 2. Yolk and albumen riboflavin concentrations were depressed by the deficient diets and cases of curled toes were seen in the chicks. 3. The few instances of defective down did not resemble cases seen in field outbreaks of a condition involving depressed hatchability and a defective down syndrome. 4. It is concluded from observations in this experiment and in the field outbreaks that there is a condition in breeding chickens causing depressed hatchability and defective down that is not attributable to riboflavin deficiency.
Original languageEnglish
Pages (from-to)619-23
Number of pages5
JournalBritish Poultry Science
Volume34
Issue number3
DOIs
Publication statusPublished - Jul 1993

Keywords / Materials (for Non-textual outputs)

  • Animals
  • Chickens
  • Feathers/abnormalities
  • Female
  • Male
  • Poultry Diseases/etiology
  • Riboflavin Deficiency/complications
  • Riboflavin Deficiency/veterinary

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