Studies on egg shells. XII.—Some changes in the shell during incubation

✍ Scribed by C. Tyler; K. Simkiss

• Publisher: John Wiley and Sons
• Year: 1959
• Tongue: English
• Weight: 571 KB
• Volume: 10
• Category: Article
• ISSN: 0022-5142
• DOI: 10.1002/jsfa.2740101106

✦ Synopsis

Abstract

The changes taking place in egg shells during the course of incubation have been studied, using histochemical tests and plastic embedding techniques. It has been confirmed that the membrane comes off all the shell, apart from that over the air space, by about the 15th or 16th day. the membrane does not come away cleanly from the shell but carries with it the ends of the mammillary knobs, including the mammillary cores. At the end of incubation there is still a great deal of calcium carbonate present on the membrane. These results are discussed in relation to those of previous workers on the subject.