Salmonella Enteritidis infection, corticosterone levels, performance and egg quality in laying hens submitted to different methods of molting

• DOI: 10.3382/ps/pez248
• Publication Date: 2019-05-08T08:12:13Z
• Authors: R.L. Andreatti Filho; E.L. Milbradt; A.S. Okamoto; T.M. Silva; I.H.B. Vellano; L.S. Gross; C.S. Oro; A Hataka
• Keywords: Salmonella enteritidis

In commercial layer poultry farming, molt induction is an important tool used by egg producers to prolong the production cycle of laying hens. Conventional programs involve total feed withdrawal, which raises questions about animal welfare and increased infection susceptibility. The high incidence paratyphoid salmonellosis infections in farming still health challenge because addition affecting birds, such also cause public problems. this context, experiments were performed with hens at 79 wk age compare conventional forced molting method (fasting) alternative (free wheat bran supply) determine their effect on persistence vaccine antibodies against Newcastle disease, control reduction experimentally inoculated Salmonella Enteritidis, performance quality A (P < 0.05) Enteritidis crop lower corticosterone observed birds that received compared those subjected fasting. Moreover, a better regard production, mass, conversion/kg dozen eggs was treatment method. Thus, use for found be feasible met needs