Abstract

Abstract
This study conducted in the field of animal resource department / College of Agriculture/ University of Anbar from 17/1/2013 till 3/7/2013. Two hundred ten female breeders (Ross 308) used in the study from the age of 27 weeks to 50 weeks (168 days) divided into seven treatments with six replicate and six birds with each replicate. The birds were reared in cages the artificial insemination had been done twice weekly. The meal and the female were fed separately. The Experimental treatments were T1 / control ration without any addition, T2/ ration contaminated with 1.5 mg aflatoxin B1/kg feed, T3/ ration contaminated with 1.5 mg aflatoxin B1 /kg feed + 2% eshnan, T4/ ration contaminated by 1.5 mg aflatoxin B1 /kg feed + 4% eshnan, T5/ ration contaminated with 1.5 mg aflatoxin B1/kg feed + 2 kg probiotic / ton fodder, T6/ ration contaminated with 1.5 mg aflatoxin B1/kg feed + 50% probiotic fermentation daily and T7/ ration contaminated 1.5 mg aflatoxin B1 /kg feed + 1 kg yeast / ton feed. The results showed the following:
1- The treatments of fermentation 50% proportion were recorded the best result it in the percentage of eggs' production eroding to the HH% and HD,HH and the cumulative egg mass gm/egg/hen/168 days and with significant difference with the result of aflatoxin treatments but without significant 4% and the yeast.
2- There was an obvious improvement in all the herbal and biological treatments used in the experiment in accumulative feed conversion factor (g. feed / g. eggs) and (g. feed / egg) in comparison with aflatoxin treatment and without difference with the control feed one.
3- There was a significant reduction (P> 0.05) in fertility eggs number and in the accumulation chick's number for every hen in the first hatch in aflatoxin treatment and recorded 7.30, 9.65 consecutively. Yeast treatment showed significant improvement with (P> 0.05) in that trait criterion with 15.74, 17.67 fertility egg/hen chicks consecutively. However, yeast treatment recorded worst results in the second hatch whereas it significant recurred in the number of fertility eggs, the number of accumulation chicks for every hen in 28 days in comparison with the control and eshnan 4% and the result of aflatoxin treatment reveled no significant reduction in accumulation chicks number and the number of fertility eggs reduced with hen in comparison with central. The treatment of yeast and eshnan reveled arithmetic improvement in those traits