Ali Adnan Al Alloush*(1) Ahmad Al Banki(1) and Mamdouh Rabah(1)
(1). Animal Production Department, Faculty of Agriculture, Al Furat University, Syria.
(*Corresponding author: Eng. Ali Adnan Al Alloush. E-Mail: email@example.com).
Received: 05/11/2018 Accepted: 26/12/2018
The experiment was conducted at private poultry farm located in Al Harmoshia, which is 30 km North West of Dier Ez Zor, to study the effect of propionic acid addition to water drinking of broiler (commercial hybrid, Roos) on some immunity characteristics (Immune standard of Newcastle disease, immune standard of Gamboro disease, immune standard of Bronchet disease, and white cells number). This experiment executed during the period 1/6/2018 – 19/7/2018; the experiment repeated again during 1/8/2018 – 18/9/2018. In this experiment, (240) chick broilers were used in the age of one day, which were bred for producing chicken meat, and these birds were divided randomly into four groups, each group contained (60). All of the birds have the same environmental conditions. The control group drunk water without addition, while groups (2, 3 and 4) drunk water with addition of (0.1, 0.2 and 0.3) mg/l of propionic acid respectively. The results have shown that giving propionic acid (0 and 3) mg/L increased the immune standard of Newcastle disease, immune standard of Gamboro disease, immune standard of Bronchet disease, and white cells number, which has an important role against diseases, so the percentage of mortality decreased as compared with the control group.
Key Words: Propionic acid, Immunity indicators, White cells, Broiler.
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