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South African Journal of Animal Science

On-line version ISSN 2221-4062
Print version ISSN 0375-1589


GOLZADEH, M.; FARHOOMAND, P.  and  DANESHYAR, M.. Dietary Rhus coriaria L. powder reduces the blood cholesterol, VLDL-c and glucose, but increases abdominal fat in broilers. S. Afr. j. anim. sci. [online]. 2012, vol.42, n.4, pp.398-405. ISSN 2221-4062.

In an experiment, 200 one-day-old broiler chickens (Ross 308) were used to investigate the effects of sumac fruit (Rhus coriaria L.) powder (SFP) on performance, plasma concentrations of total cholesterol (TC), triglyceride (TG), high density lipoprotein (HDL-c), low density lipoprotein (LDL-c), very low density lipoprotein (VLDL-c) and plasma fasting blood sugar (FBS), as well as proportional abdominal fat. The chicks were divided into four treatment groups with 5 replicates and 10 birds in each. The birds were fed the basal diet (Z-SFP) or diets supplemented with 2.5 g SFP (L-SFP), 5 g SFP (M-SFP) and 10 g SFP (H-SFP) per kg diet. During the whole experimental period the H-SFP birds had a higher feed intake than the Z-SFP and L-SFP birds, though the H-SFP birds had higher feed conversion ratio compared with birds in the other treatments. No significant differences for body weight gain were recorded between the treatments. The M-SFP and H-SFP birds had lower plasma TC and VLDL-c concentrations than the Z-SFP and L-SFP birds. No significant differences between the treatments were indicated for plasma TG, HDL-c and LDL-c concentrations. Moreover the plasma FBS concentration of the H-SFP birds was lower than the birds in treatments Z-SFP and L-SFP, but no significant differences were observed between the other treatments. Furthermore, significant negative correlations were found between SFP supplementation and plasma TC, VLDL-c and FBS concentrations and a significant positive correlation between SFP supplementation and abdominal fat weight. In conclusion, dietary supplementation of SFP reduces the blood TC, VLDL-c and FBS concentrations, which can be related to decreased activity of HMG-CoA reductase and α-amylase activities. The higher abdominal fat weight of the SFP-fed birds is possibly related to changes of energy storage towards fat deposition.

Keywords : Fasting blood sugar; feed conversion ratio; feed intake; performance; sumac fruit.

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