The effect of some feed supplements on activity of kidneys of broiler chicken

الملخص EN

-In a poultry farm of Ibn – Elbitar secondary school at AL-Utashi / Karbalaa Governorate , this study was conducted to evaluate the effects of different levels of feed supplementation such as raw garlic (Allium sativum) powder , Saccharomyses cerevisea and Trigonella foeunum - graceum seeds, on kidneys parameters, therefore great attention has been devoted to studying the effect of these additives in nutrition of ( 60 ) male Ross broiler chickens with an age of one week old and each weights (170 gm), these birds randomly distributed into 6 groups ( 5 treatment groups administered with different levels of additives were added to standard diet , and untreated control group administered with standard diet only ) for 5 weeks. Then birds were sacrificed, kidneys were kept for histological sectioning, diameters of :- renal corpuscles, glomerulus , Bowman's space, the two types of convoluted tubules were measure in addition to the height of some lining cells, by using the ocular micrometer after its calibration with stage micrometer. Results revealed a significant decrease at (P≥0.05) in the parameters :- diameters of glomerulus with its capsule , glomerulus itself and the lumen of distal convoluted tubule when treated with 250 gm / 100kg (standard diet) of Trigonella foenum in contrast to control group ,also the treatment with (100gm / 100kg diet) of Saccharomyces cerevisea causes a significant decrease in the diameters of each glomeruli and distal tubules and its lumen .

The same effect caused by the treatment with the two levels(300-600gm / 100kg diet) of garlic on the diameters of glomeruli ,proximal convoluted tubule and its lumen, while there is an a significant increment presents in a diameter of proximal convoluted tubule and its lumen ,when treated with(100-.500 / 100kg)in sequence,and the same effect show it (300gm / 100kg) of garlic on the diameter of proximal convoluted tubule and its lumen , and lumen of distal convoluted tubule only at (600gm / 100kg) in contrast to control group.

Hight of the lining epithelia of both type of renal tubules never be affected by all of these treatments .