+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Genetic control of food intake in chickens

Genetic control of food intake in chickens

Journal of Nutrition 124(8 Suppl): 1341s-1348s

Genetic selection for body weight in broiler-type chickens has created a highly efficient omnivore capable of attaining a 2.0 kg body weight in 40-42 d of age with an overall feed conversion (feed consumed per unit of body weight) of less than two. The primary correlated response to the huge increases in the growth of chickens over the last 50 years has been increased feed intake. Although there is much independent data regarding the physiological systems controlling feed intake, there is a dearth of information regarding the inheritance of central and peripheral feed intake control mechanisms. Using four lines of chickens from a double selection experiment for exponential growth rate at different ages, we are investigating changes in both peripheral and central feed intake control mechanisms in response to selection. We have observed a genetic basis for neurotransmitter levels in the hatching chick, which seems to be related to selection for body weight. Diallel crossing experiments have demonstrated that catecholamine levels are inherited in a nonadditive manner, as is feed consumption immediately post-hatch, suggesting that sympathetic nervous activity (as defined by catecholamine and metabolite levels) may be involved in the inheritance of early feed intake in chickens. Further, the use of pharmacological substances (such as monosodium glutamate) known to alter food intake in mammals exhibit signs of genotype by treatment interactions for growth and hypothalamic neurotransmitter levels. These data suggest a research strategy to separate genetic changes in food intake from those related to responses in metabolism.

(PDF emailed within 1 workday: $29.90)

Accession: 002390544

Download citation: RISBibTeXText

PMID: 8064382

Related references

Genetic aspects of food intake and food utilisation efficiency for growth in chickens. Proceedings of the 17th Australian Poultry Science Symposium, Sydney, New South Wales, Australia, 7-9 February 2005: 153-162, 2005

The involvement of calcium in food intake control of chickens. Poultry Science 64(SUPPL 1): 88, 1985

Genetic aspects of feed efficiency under food intake restriction in broiler chickens. 2nd World Congress applied to Livestock Production, 4th-8th October, 1982-7 Symposia 1: 417-423, 1982

Diurnal-nocturnal changes in food intake, gut storage of ingesta, food transit time and metabolism in growing broiler chickens: a model for temporal control of energy balance. British Poultry Science 34(4): 699-709, 1993

Does a glucostatic mechanism for food intake control exist in chickens?. Poultry Science 53(5): 1720-1724, 1974

GABAergic control of food intake in the meat-type chickens. Physiology and Behavior 76(4/5): 465-468, 2002

Genetic selection for body weight in chickens has altered responses of the brain's AMPK system to food intake regulation effect of ghrelin, but not obestatin. Behavioural Brain Research 221(1): 216-226, 2011

Control of food intake in rats dissociation between control of total food intake and circadian rhythmicity. Chronobiologia 6(2): 147, 1979

Genetic control of the immune response in chickens. I. Analyses of line differences in chickens selected for and against the immune response to rabbit serum albumin. II. Antigen-specific genetic control linked to the major histocompatibility B locus. Bulletin of Azabu University, Veterinary Medicine 6(2): 87-94, 95-98, 1985

Food intake and growth in chickens given food in the wet form with and without access to drinking water. British Poultry Science 36(3): 357-369, 1995

Impaired control of food intake and reduced enteric neuronal activation associated with dietary and genetic alterations in cholecystokinin sensitivity. FASEB Journal 16(5): A1248, March 22, 2002

Observations on total food intake and 24 hour food intake patterns during long term registration of food intake behavior in rats. Zeitschrift fuer Versuchstierkunde 22(3): 156-160, 1980

Observations on total food intake and 24 h food intake patterns during long term registration of food intake behaviour in rats. Zeitschrift für Versuchstierkunde 22(3): 156-160, 1980

Genetic control of the immune response in chickens 2. antigen specific genetic control linked to the major histocompatibility b locus. Bulletin of Azabu University Veterinary Medicine 6(2): 95-98, 1985