Yolk sac utilization in ostrich (<i>Struthio camelus<i/>) chicks : research communication
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...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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AOSIS
2004-11-01
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| Series: | Onderstepoort Journal of Veterinary Research |
| Online Access: | https://ojvr.org/index.php/ojvr/article/view/267 |
| Summary: | 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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| ISSN: | 0030-2465 2219-0635 |