تاثير اضافة يوديد البوتاسيوم الى ماء الشرب في الاداء الانتاجي و في مواصفات الذبيحة لفروج اللحم المربى في فصل الصيف

الملخص EN

This experiment was conducted in Poultry Farm, Animal Production Department, College of Agricultural Engineering Sciences, University of Baghdad, for the period from 17/8/2018 up to 28/9/2018, to investigate the effect of adding Potassium Iodide (KI) In different levels to drinking water of broilers reared in summer season on some productive performance and carcass specification.

A total of 240 day old chicks Ross 308 were randomly allocated into four treatments with 3 replicate per each.

The drinking waters were supplemented with potassium Iodide from the beginning of fourth week until the end of sixth week of age for all treatments except control and the average house temperature during the experimental weeks was between 23.2-39.4 cº.The treatments were as follows : T1 Control treatment without any addition.

T2 Adding 0.25 mg potassium iodide / litter drinking water.

T3 Adding 0.50 mg potassium iodide/litter drinking water.

T4 Adding 1mg potassium iodide / litter drinking water.

Live Body weight, weight gain, Feed consumption, Feed conversion ratio, dressing percentage and relative weights of carcass cuts of thigh, breast, liver, heart and gizzard through 4,5 and 6 week of age of birds were measured.

As such calculated both of the Economic indicator and the percentage of mortality.

Results showed that T3 improved significantly (p<0.05) in body weight gain at fourth week, whereas T4 was significant ( p<0.05) superiority in total body weight gain compared with T2, the relative weight of heart which higher significantly (p<0.05) in T3 and T4 compared with control.

We concluded that adding 1mg potassium iodide / L drinking water gave best results than the other concentrations but this not measure up surprise level on control treatment that free from adding when broiler reared on Summer Season.