Paper Details

Effect of different sources of lipid on heterophil to lymphocyte ratio and serum corticosterone concentration in broiler chickens

Goudarzi, P. Shawrang, A. A. Sadeghi, M. Chamani

DOI: https://dx.doi.org/10.12692/ijb/5.10.163-168

Int. J. Biosci. 5(10), 163-168. November, 2014. (PDF)

Abstract:

The aim of this study was to investigate the effect of different sources of lipid on Heterophil:Lymphocyte (H:L) ratio, as an index of stress, and serum corticosterone concentration in broiler chicken. Four hundred and twentyfour one-day-old broiler chicks (Ross 308), randomly divided into five treatments as a completely randomized design, consisting four replicates of 21 birds per each. Chicks were assigned to receive one source of lipid eithertallow or corn oil or sunflower oil or flaxseed oil or olive oil in their diet. The counts of heterophil, lymphocyte and serum corticosterone concentration were measured at days 28 and 42 of age. Chicks fed diet containing sunflower oil showed the highest H:L ratio (P<0.05) and those fed diet containing corn oil had the lowest H:L ratio at days 28 and 42 of age (P<0.05). Feeding flaxseed oil significantly showed the highest level of blood corticosterone concentration at day 28 of age. In this study, it was concluded that H:L ratio is affected by lipid source and corn oil among used lipids had the lowest H:L ratio, that is useful for wellbeing and health of broilerchicks.