The Protective Effects of Lactobacillus Casei and Lactobacillus Acidophilus Against Liver and Bursae of Fabricius Pathological Changes Induced by Aflatoxin B1 or Fumonsin B1 Contaminated Feed in Broilers

Abstract

The aim of this study was to evaluat the ability of Lactobacillus casei and Lactobacillus acidophilus in counteracting the deleterious effects of aflatoxin B1(AFB1) or Fumonsin B1 (FB1)in broiler chickens .One hundred and five Ross 308 , one-day-old broiler chicks were assigned 7 treatments, 3 replicates with 5 birds cages each for 42 reaed day. The experimental treatments were labeled as follows:-T1. BD no other addition (Control).T2. BD containing a 3 mg AB1/kg diet .T3. BD containing a 3 mg FB1/kg diet + Lactobacillus casei CFU ( 1.5×108 cell /ml).T4. BD containing a 3 mg AFB1/kg diet + Lactobacillus acidophilus CFU ( 1.5×108 cell /ml).T5. BD containing a 300 mg FB1/kg. T6. BD containing a 300 mg FB1/kg diet+ Lactobacillus acidophilus CFU( 1.5×108 cell /ml ). T7. BD containing a 300 mg FB1/kg diet + Lactobacillus casei CFU ( 1.5×108 cell /ml). Results of histological analysis showed that there was significant damage in the Liver and Fabricius tissues receiving AFB1 or FB1 alone. Feeding Aflatoxin caused liver fatty changes, necrosis, bile duct hyperplasia and aggregation of lymphocyte. The fumonsin treatment caused moderate to severe hydropic/fatty degeneration in the hepatocytes of the liver and the tubular epithelium of the liver and follicular depletion in the bursa of Fabricius. The supplementation of L. casei or L. acidophilus to AFB1 or FB1 treated birds not significantly diminished the negative effects of dietary AFB1or FB1 (p˂0.05) on the compared to the control diet. In conclusion our results showed that addition of L. casei and L. acidophilus cannot reduce the adverse effects produced by the presence of AFB1 or FB1 in broiler chickens diet.