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Effects of Dietary Supplementation with Probiotic or Synbiotic on Broiler Haematology and Intestinal Integrity

06 April 2015

Supplementation of probiotic and synbiotics had positive effects on the performance of broilers, thereby improving their haematological and intestinal histological aspects, according to new research from Kurdistan in Iraq.

The effects of dietary supplementation with a probiotic and a synbiotic on haematology and intestinal integrity of broiler chickens have been investigated by S.S.M. Beski and S.Y.T. Al-Sardary of the University of Duhok and the University of Salahaddin, respectively.

In a paper published in the International Journal of Poultry Science, they explain that they assigned randomly a total of 525 day-old male Ross 308 chicks from a local hatchery (Jin hatchery, Duhok, Kurdistan region, Iraq) to five dietary treatments. Each had three replicates and 35 chickens per replicate. The birds were reared in floor pens.

The five diet treatments were the control (no supplement), diets supplemented with probiotic at 2.5 or 5.0g per kg and diets supplemented with synbiotic at 2.5 or 5.0g per kg diet.

The five treatments were arranged in a completely randomised design. Probiotic and synbiotic were supplemented throughout the 42-day experimental period. Feed and water were provided ad libitum.

Supplementation the broiler diet with probiotics and synbiotics resulted in a significant (p<0.05) increase in the concentration of haemoglobin.

The H/L ratio also reduced due to the addition of supplements to the broiler diets.

Supplementation of broiler diet with synbiotic significantly (p<0.05) reduced the concentration of serum cholesterol and LDL of broiler chickens.

Histological results showed that broiler chickens that fed on diets supplemented with probiotics and synbiotics have longer villi than the control group.


Beski S.S.M. and S.Y.T. Al-Sardary. 2015. Effects of dietary supplementation of probiotic and synbiotic on broiler chickens hematology and intestinal integrity. International Journal of Poultry Science. 14:31-36,

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April 2015

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