The Effect of Adding Syrian Zeolite to the Broiler Litter on the Concentrations of Ammonia (NH3) Gas in the Indoor Air of the Barn During the Winter Season

Berna Krikor Jilenkerian *(1), Ali Nisafi(1), Ahmad Kara Ali (2) and Bushra AI-Eissa(1)

(1). Department of Animal Production, Faculty of Agriculture Engineering, Tishreen University, Lattakia, Syria.

(2). Department of Marine Chemistry, Higher Institute of Marine Research Tishreen, University, Lattakia, Syria.

(*Corresponding author: Eng. Berna Krikor Jilenkerian. E-Mail:

Received: 17/10/2021             Accepted: 31/03/2022


This research experiment was conducted in the town of Al-Qanjara in Latakia Governorate, during the period 2019-2021 (January-February). The Syrian natural zeolite was added to the litter (sawdust: zeolite) for the three treatments, with the following ratios: Tz1 (25%) (75:25), Tz2 (50%) (50:50) and Tz3 (75%) (25:75), and in addition the control Tz0 (0%) without zeolite. To evaluate the effect of adding the zeolite to the litter of hybrid broilers (Roos) on the pollution of ammonia (NH3) gas concentration in the air of the barn, at five different ages (1, 2, 3, 4, 5) weeks respectively. Using the portable multi-gas detector. The results showed that the average concentration of NH3 at the first week in the control was Tz0 0.1 ppm, and with the beginning of the fourth week, the values recorded a relative increase 1.6, while in the fifth week it increased to 16.6. The increase in the value of NH3 from the beginning of the first week until at the end of the fifth week 16.5. As for the average values of NH3 at the fifth week, they were as follows: Tz0 16.6, Tz1 14.1, Tz2 13.1 and at the Tz3 12 ppm respectively.

Key words: Natural zeolite, Ammonia gas (NH3), Broiler litter, Semi-closed broiler house, Winter season.

Full paper in Arabic: pdf