Electrolyte secretion by the magnum of the domestic fowl during egg-shell calcification

Moynihan, John B; Edwards, N. A.

doi:10.1016/0300-9629(75)90139-5

Cited by 6 publications

(3 citation statements)

References 14 publications

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“…The composition of the primary secretion would appear to have a higher Na+ concentration, with lower concentrations of K+ and glucose than the normal fluid surrounding the natural egg ( Table 2). The primary secretion may include secretions from regions of the oviduct other than the shell gland (Moynihan and Edwards, 1975).…”

Section: Discussionmentioning

confidence: 99%

“…Uterine fluid and albumen concentrations of K+, Na + and Ca 2+ were estimated by the methods of Moynihan and Edwards (1975) and glucose by the method of Huggett and Nixon (1957).…”

Section: Methodsmentioning

confidence: 99%

“…Typical values for laying chickens taken from the following references for comparison: glucose(Bell, 1971); K+ and Na+(Moynihan and Edwards, 1975); Ca 2 + (diffusible)(Stafford and Edwards, 1973). Downloaded by [University of Calgary] at 11:04 03 February 2015…”

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confidence: 99%

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The secretion of glucose into the egg ofgallus domesticusand observations on the uterine secretion of cations

1977

British Poultry Science

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1. The concentrations of glucose, K+, Na+ and Ca2+ were measured in the uterine fluid and albumen of eggs removed from the shell gland at intervals of from 6 to 20 h after the previous oviposition. 2. A steady increase in the concentrations of glucose and K+ occurred in the uterine fluid during the initial 13 h of the egg's sojourn in the gland, resulting in their diffusion into the albumen. Meanwhile Na+ concentrations of the fluid and albumen decreased. 3. After 14 h in the gland and until oviposition there was little change in the concentrations. 4. Uterine fluid drained artificially from the gland using a Perspex egg had lower glucose and K+, but higher Na+ concentrations than the normal fluid. 5. The rates of secretion of glucose and K+ measured with the artificial egg resembled their entry rates into the normal egg, but there was an apparent deficit in Ca2+ secretion.

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Section: Discussionmentioning

confidence: 99%

“…Uterine fluid and albumen concentrations of K+, Na + and Ca 2+ were estimated by the methods of Moynihan and Edwards (1975) and glucose by the method of Huggett and Nixon (1957).…”

Section: Methodsmentioning

confidence: 99%