AIM The present study was aimed to investigate the immunological competence of chlorpyrifos (CPF) insecticide after oral administration in layer chickens. MATERIALS AND METHODS A total of 20 White Leghorn birds were given CPF in drinking water at 0.3 ppm/bird/day (no observable effect level dose) for a period of 3-month. Immune competence status of layer birds and chicks hatched from CPF-trea...

There are few published studies describing the unique management practices, farm design and housing characteristics of commercial meat chicken and layer farms in Australia. In particular, there has been a large expansion of free range poultry production in Australia in recent years, but limited information about this enterprise exists. This study aimed to describe features of Australian commerc...

BACKGROUND Various information about the genetic diversity of Escherichia coli isolates from chickens are available but a detailed epidemiological investigation based upon isolates obtained from interrelated pullet and layer flocks is still missing. Therefore, in the course of a longitudinal epidemiological study on pullets and layers, 144 E. coli isolates from chickens with or without patholog...

This study aimed to investigate the effect of mannose-binding lectin (MBL) on infections with Escherichia coli in chickens. Initially, the basic levels of MBL in 4 different lines of layer chickens, namely ISA Brown, Lohmann Selected Leghorn, Lohmann Braun, and Hellevad, were investigated. This investigation revealed a 2-to 3-fold difference in the basic levels of MBL in serum between some of t...

90 Reducing egg-borne transmission of Salmonella Enteritidis in layer chickens by in-feed supplementation of caprylic acid. I. Upadhyaya*1, A. Upadhyay1, H.-B. Yin1, Z. Droczdowich1, M. Nair1, V. K. Bhattaram1, D. P. Karumathil1, S. Mooyottu1, M. I. Khan1, D. Schreiber1, A. Kollanoor-Johny2, M. J. Darre1, and K. Venkitanarayanan1, 1University of Connecticut, Storrs, CT, 2University of Minnesota...