Effect of feeding different oils on plasma corticosterone in broiler chickens

Pál, László and Kulcsár, Margit and Poór, Judit and Wágner, László and Nagy, Szabolcs and Dublecz, Károly and Husvéth, Ferenc (2015) Effect of feeding different oils on plasma corticosterone in broiler chickens. Acta Veterinaria Hungarica, 63 (2). pp. 179-188. ISSN 0236-6290

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Abstract

A study was conducted to examine the effects of different oils on the plasma corticosterone concentrations of broiler chickens fed ad libitum or deprived of feed for 24 hours. A total of 36 Ross broilers were randomly assigned to one of three dietary treatments at 10 days of age and fed a grower diet supplemented with 60 g/kg soybean oil (rich in linoleic acid, C18:2n–6), linseed oil (rich in a-linolenic acid, C18:3n–3) or fish oil (rich in C14:0, C16:0, C16:1n–7, C20:1n–9; eicosapentaenoic acid and docosahexaenoic acid, EPA, C20:5n–3 and DHA, C22:6n–3), respectively, for 18 days. Dietary supplementation of fish oil resulted in lower (P < 0.05) baseline plasma corticosterone levels of chickens fed ad libitum for 18 days compared to soybean and linseed oil supplementations. Feed deprivation for 24 h induced a significant (P < 0.05) increase in corticosterone concentration in every treatment group compared to the ad libitum-fed birds. The hormone levels of feed-deprived birds did not differ significantly among groups fed diets supplemented with different oils.

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