Article (Scientific journals)
Effects of maternal dietary EPA and DHA supplementation and breeder age on embryonic and post-hatch performance of broiler offspring
Koppenol, A.; Delezie, E.; Wang, Y. et al.
2015In Journal of Animal Physiology and Animal Nutrition, 99 (S1), p. 36-47
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Keywords :
Broiler breeders; Docosahexaenoic acid; Eicosapentaenoic acid; Embryonic development; Omega-3 fatty acids; Transgenerational effect
Abstract :
[en] Breeder age and nutrition are amongst the most important factors affecting progeny growth and development. The present experiment was carried out to evaluate the effects of n-3 fatty acid (FA), with special emphasis on the ratio of eicosapentaenoic (EPA, 20:5 n-3) and docosahexaenoic (DHA, 22:6 n-3) acid, provided to the diet of ageing broiler breeder hens at different ratios, on the incubation parameters and the performance of the offspring. Four hundred and eighty Ross-308 broiler breeder hens were fed one of four different diets (120/treatment), with an equal fat content. The control diet was a basal diet, rich in n-6 FAs (CON). Blends of fish oil were used to enrich the three other diets in n-3 FA and to obtain different EPA/DHA ratios of 1/1 (EPA=DHA), 1/2 (DHA) or 2/1 (EPA). Every 5 weeks, incubation parameters were assessed. Every 15 weeks, offspring was reared until slaughter age on a standard diet. Breeder age affected almost all incubation and post-hatch parameters, whereas n-3 FA treatment only lowered egg weight (p < 0.0001) and consequently hatched chick weight (p < 0.0001). Supplementation of EPA resulted in a higher proportional liver weight (p = 0.0219) at hatch, a lower body weight up to 28 days post-hatch (p = 0.0418), a lower daily weight gain (p = 0.0498) and a higher feed conversion ratio (p = 0.0395) during the starter period (p = 0.0498), resulting in a higher overall offspring feed conversion ratio (p = 0.0317) compared to the control diet. DHA supplementation, on the other hand, resulted in a lower residual yolk weight (p = 0.0220) and a higher overall offspring mortality (p = 0.0125). In conclusion, supplementation of n-3 FA could not counter the adverse effect of breeder flock age, but did not harm incubation or improve post-hatch performance, either. EPA and DHA affected offspring development differently during early post-hatch life. � 2015 Blackwell Verlag GmbH.
Disciplines :
Animal production & animal husbandry
Author, co-author :
Koppenol, A.;  Laboratory of Livestock Physiology, Department of Biosystems, KU Leuven, Leuven, Belgium, Institute for Agricultural and Fisheries Research (ILVO) Animal Sciences Unit, Melle, Belgium
Delezie, E.;  Institute for Agricultural and Fisheries Research (ILVO) Animal Sciences Unit, Melle, Belgium
Wang, Y.;  Laboratory of Livestock Physiology, Department of Biosystems, KU Leuven, Leuven, Belgium
Franssens, L.;  Laboratory of Livestock Physiology, Department of Biosystems, KU Leuven, Leuven, Belgium
Willems, E.;  Laboratory of Livestock Physiology, Department of Biosystems, KU Leuven, Leuven, Belgium
Ampe, B.;  Institute for Agricultural and Fisheries Research (ILVO) Animal Sciences Unit, Melle, Belgium
Buyse, J.;  Laboratory of Livestock Physiology, Department of Biosystems, KU Leuven, Leuven, Belgium
Everaert, Nadia ;  Université de Liège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Zootechnie
Language :
English
Title :
Effects of maternal dietary EPA and DHA supplementation and breeder age on embryonic and post-hatch performance of broiler offspring
Publication date :
2015
Journal title :
Journal of Animal Physiology and Animal Nutrition
ISSN :
0931-2439
eISSN :
1439-0396
Publisher :
Blackwell Publishing Ltd
Volume :
99
Issue :
S1
Pages :
36-47
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 16 June 2015

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