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Early nutrition causes persistent effects on pheasant morphology

Ohlsson, Thomas LU and Smith, Henrik LU (2001) In Physiological and Biochemical Zoology 74(2). p.212-218
Abstract
Differences in growth conditions during early ontogeny have been suggested to cause permanent effects on the morphology and quality of birds. Yearly variation in growth conditions could thus result in morphological and quality differences between cohorts. In this study, we investigated the effect of small differences in the dietary protein content of captive ring-necked pheasants (Phasianus colchicus) during their first 8 wk posthatching. An experimental increase of the proportion of dietary protein during the first 3 wk of life accelerated growth, whereas a similar manipulation during the following 5 wk had only a limited effect. Compensatory growth during the postexperimental period equalized the size of chicks from different... (More)
Differences in growth conditions during early ontogeny have been suggested to cause permanent effects on the morphology and quality of birds. Yearly variation in growth conditions could thus result in morphological and quality differences between cohorts. In this study, we investigated the effect of small differences in the dietary protein content of captive ring-necked pheasants (Phasianus colchicus) during their first 8 wk posthatching. An experimental increase of the proportion of dietary protein during the first 3 wk of life accelerated growth, whereas a similar manipulation during the following 5 wk had only a limited effect. Compensatory growth during the postexperimental period equalized the size of chicks from different experimental treatments. However, a difference in tarsus length resulting from experimental treatment during the first 3 wk remained into adulthood. Furthermore, the protein content of the diet during the first 3 wk had an effect on the degree of fluctuating asymmetry in tarsus length, suggesting persistent effects on the quality of birds. The results of this study may explain size differences between cohorts that exist in pheasants and may also provide a link between the use of pesticides in agriculture and population effects on pheasants. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physiological and Biochemical Zoology
volume
74
issue
2
pages
212 - 218
publisher
University of Chicago Press
external identifiers
  • scopus:0035075684
ISSN
1522-2152
language
English
LU publication?
yes
id
dce5b8c2-a571-4689-a0b1-94aa12b7194b (old id 145843)
alternative location
http://www.journals.uchicago.edu/doi/pdf/10.1086/319657
date added to LUP
2007-06-26 10:54:10
date last changed
2018-03-18 03:37:03
@article{dce5b8c2-a571-4689-a0b1-94aa12b7194b,
  abstract     = {Differences in growth conditions during early ontogeny have been suggested to cause permanent effects on the morphology and quality of birds. Yearly variation in growth conditions could thus result in morphological and quality differences between cohorts. In this study, we investigated the effect of small differences in the dietary protein content of captive ring-necked pheasants (Phasianus colchicus) during their first 8 wk posthatching. An experimental increase of the proportion of dietary protein during the first 3 wk of life accelerated growth, whereas a similar manipulation during the following 5 wk had only a limited effect. Compensatory growth during the postexperimental period equalized the size of chicks from different experimental treatments. However, a difference in tarsus length resulting from experimental treatment during the first 3 wk remained into adulthood. Furthermore, the protein content of the diet during the first 3 wk had an effect on the degree of fluctuating asymmetry in tarsus length, suggesting persistent effects on the quality of birds. The results of this study may explain size differences between cohorts that exist in pheasants and may also provide a link between the use of pesticides in agriculture and population effects on pheasants.},
  author       = {Ohlsson, Thomas and Smith, Henrik},
  issn         = {1522-2152},
  language     = {eng},
  number       = {2},
  pages        = {212--218},
  publisher    = {University of Chicago Press},
  series       = {Physiological and Biochemical Zoology},
  title        = {Early nutrition causes persistent effects on pheasant morphology},
  volume       = {74},
  year         = {2001},
}