Cited by 127Animal Nutrition and PhysiologyAnimal Behavior and Welfare StudiesRegulation of Appetite and Obesity

The DOI matches its Crossref record; 62 of the 64 references it cites were found in a registry or an index.

Diet selection for protein by poultry

Forbes, J.M., Shariatmadari, F.·1994·World s Poultry Science Journal

Abstract

If birds can learn to associate different sensory properties of foods with different metabolic feelings caused by different protein contents, then they should be able to choose a balance of foods which makes them feel most comfortable. Broiler chickens given a choice between two foods, one containing a higher concentration of protein than required and the other a lower concentration, eat amounts of the two which will give a diet that is close to optimum for growth in terms of overall protein content. When both foods have excessive or insufficient protein the birds eat predominantly from that closer to their requirements. As broilers grow they choose a progressively lower protein diet in line with their reducing protein:energy requirements. Strains with higher potential rates of lean deposition voluntarily consume a higher ratio of high-protein to low-protein food compared with low-growth strains, while strains selected for high fat deposition eat less protein per unit of energy than lean birds. Males select higher protein diets than females. Although increases in environmental temperature would be predicted to reduce energy requirements and thus increase the protein:energy ratio in selected diets, heat-stressed birds do not increase the protein content of their diet, probably because of the high heat increment of protein metabolism. Short periods of access to one food alone are followed by a preference for the opposite food when access to both is restored. When given appropriate training, laying hens can balance their diet for protein but not as well as broilers. There is evidence that growing chicks can differentiate high-lysine from low-lysine foods but do not entirely balance their diet for lysine. Methionine-deficient broilers eat more of a methionine supplemented food than normal birds, while laying hens eat some methionine-fortified food when given a choice against a low-methionine food, but not enough to support normal egg production. It is concluded that poultry can show a great degree of ‘nutritional wisdom’ as far as protein is concerned but that they need to be allowed to differentiate between foods with different nutrient profiles by sensory means, and a lack of training might account for some of the poor results obtained.

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Crossref · 10.1079/wps19940002

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Citations

Cites

Show all 64 references

Research works printed but not linked: 21

  1. COVASA M., 1993, Proceedings of the Nutrition Society, 52, 30A
  2. GRAHAM W.R., 1932, Poultry Science, 11, 365
  3. HARPER A.E., 1974, Processed Foods – Protein, 49
  4. HUGHES B.O., 1979, Food Intake Regulation in Poultry, 141
  5. KAMINSKA B., 1979, Instytut Zootechniki Prace Bad. Zakl. Hod. Drobiu, 8, 47
  6. KEMPSTER H.L., 1916, Journal of the American Association of Institutions and Investigators in Poultry Husbandry, 3, 26
  7. KIISKIINEN T., 1987, Annales Agriculturae Fenniae, 26, 131
  8. LEESON S., 1977, Feedstuffs, Minneapolis, 19, 21
  9. MASTIKA I.M., 1985, Recent Advances in Animal Nutrition in Australia 1985
  10. MASTIKA M., 1987, Recent Advances in Animal Nutrition in Australia 1987, 260
  11. ROSE S.P., 1986, Proceedings of the 7th European Poultry Conference, 903
  12. ROSE S.P., 1986, Nutrient Requirements of Poultry and Poultry Research, 214
  13. RUGG W.C., 1925, Victoria, Australia, Department of Agriculture Bulletin, 54, 36
  14. SHARIATMADARI F., 1991, Proceedings of the Nutrition Society, 50
  15. SHARIATMADAR F., 1992, Proceedings of the Nutrition Society, 51
  16. SHARIATMADARI F., 1992, Animal Production, 54, 470
  17. STEINRUCK U., 1990, Archivs fur Geflugelkunde, 54, 245
  18. STEINRUCK U., 1990, Archivs fur Geflugelkunde, 54, 173
  19. STEINRUCK U., 1992, Archivs fur Geflugelkunde, 56, 163
  20. STEPHENS, D.W. and KREBS, J.R. (1986) Foraging Theory. Princeton University Press, Princeton, 247pp
  21. SUMMERS J.D., 1979, Food Intake Regulation in Poultry, 445

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Metadata

Authors
Forbes, J. M., & Shariatmadari, F.
Affiliations
University of Leeds (GB)
Venue
World s Poultry Science Journal
Published
1994-03-01
Volume
50
Issue
1
Pages
7-24
ISSN
  • 0043-9339 (ISSN-L)
  • 1743-4777
OpenAlex
W2045225084
Cited by
127
References
64
Citations by year
2026: 1 · 2025: 1 · 2024: 3 · 2023: 2 · 2022: 3 · 2021: 2 · 2020: 5 · 2019: 5 · 2018: 7 · 2017: 3 · 2016: 5 · 2015: 3 · 2014: 10 · 2013: 4 · 2012: 9
FWCI
8.88
Type
journal article
Language
en
Open access
closed
Locations
World s Poultry Science Journal (publishedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Animal Nutrition and Physiology
  • Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Animal Behavior and Welfare Studies
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
Keywords
broiler chickens, laying hens, growth rate, energy-protein ratio, heat stress, lysine, methionine deficiency

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