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Original Research
Yolk sac utilization in ostrich (Struthio camelus) chicks : research communication
Onderstepoort Journal of Veterinary Research | Vol 71, No 3 | a267 |
DOI: https://doi.org/10.4102/ojvr.v71i3.267
| © 2004 E.Z. Mushi, M.G. Binta, R.G. Chabo
| This work is licensed under CC Attribution 4.0
Submitted: 08 November 2004 | Published: 08 November 2004
Submitted: 08 November 2004 | Published: 08 November 2004
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E.Z. Mushi,M.G. Binta,
R.G. Chabo,
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The mass of residual yolk sac expressed as a percentage of initial mass of the egg from which the chick hatched decreased sharply in the first 2 days post-hatching. A gradual reduction occurred between 3 and 10 days after which a sharp decline was noted between 11 and 13 days post-hatching. The highest number of chicks with unabsorbed yolk sac was noted on day 5 post-hatching followed by days 6 and 7. Chick mortality followed the same pattern. The dynamics, causes and clinical consequences of yolk sac utilization are discussed.
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