Airsacculitis in Turkeys II. Use of Tylosin in the Control of the Egg Transmission of Mycoplasma spp. Other Than Mycoplasma gallisepticum in Turkeys

Publisher Website
Google Scholar
Abstract
The subcutaneous injection of turkey hens with tylosin tartrate at the level of 5 mg/lb of body weight with a maximum of 75 mg/bird at monthly intervals did not appear to reduce air-sac lesions in day-old poults. The dipping of preheated eggs in 1000 ppm of tylosin tartrate at 45[degree]F for 15 min significantly reduced the incidence of the air-sac lesions in day-old poults and the number of Mvcoplasma spp. that could be isolated. The dipping did not reduce candle-out fertility, but there was an increase in hatchability of dipped eggs. Condemnations due to septicemia toxemia and airsacculitis were significantly lower in flocks hatched from dipped eggs. The majority of the Mvcoplasma isolated from the day-old poults were of the "H" serotype. Dipping significantly reduced egg transmission of the Mvcoplasma organisms.