Effects of different timing of routine vaccination schedules on growth performance

Project Abstract

<p> </p><p>This study was conducted to find the effect of the delayed routine vaccination schedules on growth performance, blood parameters and immunity levels of broilers reared in a humid tropical part of Nigeria. A total of 90 broiler chickens were procured and sorted into three treatments (control, 1 week delay in vaccination and 2 weeks delay in vaccination).</p><p>The results showed significant differences (P 0.05) affected by delayed vaccination schedule. The blood parameters (PCV and WBC) values were significantly (P&lt;0.01) lower in birds whose vaccination schedule was delayed for two weeks, (Treatment 3) compared to other treatments while immunity levels were significantly (P&lt;0.01) lower in Treatment 3 compared to Treatments 2 and 1 respectively. It was concluded that delayed vaccination schedule of up to two weeks considerably affected growth performance and immunity status of broilers.</p> <br><p></p>

Project Overview