| survey of salmonella contamination in chicken layer farms in three caribbean countries. | this study was conducted to investigate the demography, management, and production practices on layer chicken farms in trinidad and tobago, grenada, and st. lucia and the frequency of risk factors for salmonella infection. the frequency of isolation of salmonella from the layer farm environment, eggs, feeds, hatchery, and imported day-old chicks was determined using standard methods. of the eight risk factors (farm size, age group of layers, source of day-old chicks, vaccination, sanitation prac ... | 2014 | 25198837 |