Article (Scientific journals)
Effects of nutritional programming on growth and metabolism caused by albumen removal in an avian model
Willems, E.; Koppenol, A.; De Ketelaere, B. et al.
2015In Journal of Endocrinology, 225 (2), p. 89-100
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Keywords :
Albumins/deficiency; Animals; Body Weight; Chickens/growth & development/metabolism; Female; Glucose/metabolism; Humans; Insulin/metabolism; Male; Models, Animal; Ovum/metabolism; Pregnancy; Prenatal Exposure Delayed Effects/metabolism/physiopathology; Prenatal Nutritional Physiological Phenomena; Reproduction; chickens; glucose homeostasis; prenatal protein undernutrition
Abstract :
[en] In mammalian models of prenatal undernutrition the maternal diet is manipulated, exerting both nutritional and hormonal effects on the offspring. In contrast, in the chicken, strictly nutritional effects can be applied. Prenatal protein undernutrition in chickens was induced by partial replacement of albumen with saline during early embryonic development (albumen-deprived group) and results were compared with a sham-manipulated and a non-manipulated group. Body weight of the albumen-deprived hens was reduced throughout the entire experimental period (0-55 weeks). The reproductive capacity was diminished in the albumen-deprived hens as reflected in the reduced number of eggs and lower egg weight. The plasma triiodothyronine levels were increased in the albumen-deprived group compared with the non-manipulated hens, but not the sham-manipulated hens. An oral glucose tolerance test (OGTT) at 10 weeks of age revealed a decreased glucose tolerance in the albumen-deprived hens. During adulthood, an age-related loss of glucose tolerance was observed in the hens, leading to disappearance of treatment differences in the OGTT. The offspring of the albumen-deprived hens (PA chicks) had reduced body weight until at least 3 weeks of age. In addition, the PA chicks had a decreased relative residual yolk weight at hatching. An insulin tolerance test revealed increased sensitivity to insulin for the PA chicks compared with the offspring of the non-manipulated (PN) and sham-manipulated hens (PS). In conclusion, prenatal protein undernutrition by albumen removal caused long-term effects on body weight, reproductive performance, and physiology.
Disciplines :
Animal production & animal husbandry
Author, co-author :
Willems, E.
Koppenol, A.
De Ketelaere, B.
Wang, Y.
Franssens, L.
Buyse, J.
Decuypere, E.
Everaert, Nadia ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Zootechnie
Language :
English
Title :
Effects of nutritional programming on growth and metabolism caused by albumen removal in an avian model
Publication date :
2015
Journal title :
Journal of Endocrinology
ISSN :
0022-0795
eISSN :
1479-6805
Publisher :
Society for Endocrinology, Bristol, United Kingdom
Volume :
225
Issue :
2
Pages :
89-100
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 11 June 2015

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