Effects of mineral premix feed supplement on immunity of laying white leghorn

Abstract

Abstract The aim of the study is to ascertain how White Leghorn laying eggs are affected by supplemental organic mineral premixes on their immune systems. 72 White Leghorn laying hens that were 3 weeks old and had not received the avian influenza (AI) vaccine were used in this study. Three treatment groups were created from the samples. Each treatment in the study consisted of eight hens that were grown for 42 days in three duplicates. A control group (PM-0), which received commercial feed without any added mineral premix, a PM-0.25 group, which received commercial feed with a 0.25% mineral premix, and a PM-0.50 group, which received commercial feed with a 0.50% mineral premix, were the three groups that received the experimental treatments. Immunity, with an emphasis on hematology and lymphoid organ weight, was measured in this study. The acquired data were analyzed using analysis of variance in a one-way design. The proportion of eosinophils in the blood hematology profile indicated a significant difference, with the maximum value recorded in the treatment comprising the addition of 0.5% mineral premix (3.4%) and the lowest value observed in the control treatment (0.5%). There were no statistically significant differences in lymphocyte, monocyte, or heterophil percentages across the three treatment groups. There was no discernible effect of the substances on thymus and spleen weights or percentage weights. As a result, the inclusion of mineral premix in animal feed at a maximum concentration of 0.50% did not trigger the immune response but effectively maintained the eosinophil level within the established acceptable range.