Morphological identification of lysosomes was established by acid phosphatase reaction [1]. Pericanalicular lysosomes exhibited lead deposits after incubating liver slices with a lead and phosphate solution under acidic condition. Transitional elements, copper and iron, are stored in lysosomes as detoxified forms of cuprothioneins and hemosiderins, respectively. Genetic background of adult-onse...

On a goose farm with 7600 geese kept in 6 houses, 730 birds in 2 houses died within a single day. After drinking, a certain proportion of geese in the affected houses exhibited trembling, salivation, lachrymation and respiratory distress followed by convulsions, dullness and prostration. The birds died soon after the onset of clinical signs. Postmortem examination revealed the presence of a lar...

ergovaline, the main ergopeptine alkaloid produced in tall fescue ( fescue arundinacea schreb.) infected with endophyte ( neotyphodium coenophialum morgan- jones & gams), is known to cause tall fescue toxicosis. this study was conducted to examine the presence of fungal endophytes in five populations of tall fescue collected from various regions of iran. the existence of neotyphodium mycelia in...

Tall fescue (Schedonorus arundinaceous (Schreb.) Dumort. nom. cons. Lolium arundinaceum Darbysh.) toxicosis results from the consumption of alkaloids released by wild-type endophytes (Epichloe coenophiala) that live in symbiosis with plant. Alkaloid causes significant production and reproductive losses which cost U.S. beef industry approximately $2 billion every year. Incorporating species cont...