Effect of using low levels of Aflatoxine (B1) on body weight and Relative weights of carcass yield of meal Fawbro Broiler chicken

Abstract

Abstract The current study was conducted in the poultry farm of the animal production department Iraqi Atomic Energy Organization during the period from 8 \ 10 \ 2000 to 2 \ 12 \ 2001. Male broiler breeder chicks were fed diet containing (0, 0.075, 0.25, 0.5, 0.75, 1.5 and 3) mg aflatoxine / kg feed from 1 day to 7 weeks of age. The objective of this study was to evaluate the effect of low levels of aflatoxine B1 on body weight relative weights and various processing parameters. All aflatoxine dose levels significantly (p > 0.05) decreased live weight, feed efficiency and increased mortality. Only 3.0 mg / kg significantly decreased dressing weight while chilled carcass weight being significantly decreased at 1.5 and 3.0 mg / kg; Percentage of carcass yields reflects the aflatoxine induced a reduction in dressed weight. Breast yield (%) was decreased significantly by aflatoxine. Aflatoxine leads to decrease carcass yield with a high meat to bone ratio and increase carcass yields with low meat to bone ratio. In general, aflatoxine B1 reduced growth and feed efficiency, Moreover, Poor pigmentation and fatty liver can result from low level chronic aflatoxine B1