Early Nutrition Causes Persistent Effects on Pheasant Morphology
- 1 March 2001
- journal article
- research article
- Published by University of Chicago Press in Physiological and Biochemical Zoology
- Vol. 74 (2), 212-218
- https://doi.org/10.1086/319657
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.Keywords
This publication has 32 references indexed in Scilit:
- Growth, developmental stability and immune response in juvenile Japanese quails (Coturnix coturnix japonica)Proceedings Of The Royal Society B-Biological Sciences, 1999
- Declining Survival of Ring-Necked Pheasant Chicks in Illinois during the Late 1900sThe Journal of Wildlife Management, 1999
- Patterns of fluctuating asymmetry in developing primary feathers: a test of the compensational growth hypothesisProceedings Of The Royal Society B-Biological Sciences, 1998
- Seasonal variation in growth of greater snow goose goslings: the role of food supplyOecologia, 1998
- Patterns of Growth and Asymmetry in Nestling Tree SwallowsJournal of Avian Biology, 1996
- Environmental Influence on Life‐History Traits: Growth, Survival, and Fecundity in Black Brant (Branta Bernicla)Ecology, 1995
- Female swallow preference for symmetrical male sexual ornamentsNature, 1992
- The Effect of Extra Food on Fitness in Breeding Carrion CrowsEcology, 1992
- Environmentally induced morphological variation in the Barnacle Goose, Branta leucopsisJournal of Evolutionary Biology, 1991
- Body Size Variation in Lesser Snow Geese: Environmental Plasticity in Gosling Growth RatesEcology, 1991