Hostname: page-component-586b7cd67f-rcrh6 Total loading time: 0 Render date: 2024-11-27T19:40:32.012Z Has data issue: false hasContentIssue false
  • English
  • Français

The influence of microorganisms and of stress on the chick's requirement for pantothenic acid

Published online by Cambridge University Press:  09 March 2007

Eva A. Latymer  and
Marie E. Coates
Eva A. Latymer
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading, RG2 9AT
Marie E. Coates
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading, RG2 9AT
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

1. The responses of germ-free (GF) and conventional (CV) chicks to suboptimal amounts of dietary calcium pantothenate (CaPa) were compared. At the lower levels of supplementation the signs of deficiency were more severe in the CV chicks.

2. Calculations based on mean body-weibts of chicksgiven graded dietary supplements of calcium pantothenate (CaPa) in both environments showed that, to achieve the same body-weight and freedom from signs of deficiency, the GF birds required only approximately two-thirds the amount of CaPa as was needed by corresponding CV birds.

3. Increasing the dietary supplement of CaPa resulted in increased contents of PaA in the livers. GF birds had more PaA per liver than their CV counterparts. In both instances the effect was due to the larger liver size. Concentration of PaA in the liver was not al€ected by dietary supplement nor by the environment.

4. CV birds were deemed to be under greater stress than GF birds because their adrenal glands were heavier and contained less cholesterol.

5. CV chicks deliberately stressed by injections of adrenocorticotrophic hormone had heavier adrenals with lower cholesterol contents than unstressed controls, but the condition was not altered by increasing the dietary supply of CaPa.

Type
Papers on General Nutrition
Information
British Journal of Nutrition , Volume 45 , Issue 2 , March 1981 , pp. 441 - 449
Copyright
Copyright © The Nutrition Society 1981

References

REFERENCES

Barton-Wright, E. C. (1963). Loboratory Practice. London: United Trade Press.Google Scholar
Bird, O. D. (1963). In Analytical Microbiology, p. 497 [Kavanagh, F., editor]. New York and London: Academic Press.Google Scholar
British Standards Institution (1940). Stand. Specif. Br. Stand. Inst. no. 911.Google Scholar
Coates, M. E., Ford, J. E. & Harrison, G. F. (1968). Br. J. Nutr. 22, 493.CrossRefGoogle Scholar
Coates, M. E., Kon, S. K. & Shepheard, E. E. (1950). Br. J. Nutr. 4, 203.CrossRefGoogle Scholar
Freeman, B. M. (1971). Wld's Poult. Sci. J. 27, 263.CrossRefGoogle Scholar
Harrison, G. F. (1969). Lab. Anim. 3, 51.CrossRefGoogle Scholar
Levenson, S. M., Tennant, B., Geever, E., Laundy, R. & Daft, F. S. (1962). Arch int. Med. 110, 693.CrossRefGoogle Scholar
Wostmann, B. S., Knight, P. L., Keeley, L. L. & Kan, D. F. (1963). Fedn Proc. Fedn Am Socs exp. Biol. 22, 120.Google Scholar
Zlatkis, A., Zak, B., Boyle, E. J. & Mich, D. (1953). J. Lab. clin. Med. 41, 486.Google Scholar