Effect of Brewer’s Dried Grain on the Serum Biochemical Indices of Grower Rabbits

Abstract

This study investigated the effects of varying levels of Brewer’s Dried Grain (BDG) on the serum biochemical indices of grower rabbits (Oryctolagus cuniculus). With the increasing demand for animal protein, particularly in developing regions like Nigeria, finding sustainable and cost-effective feed sources is crucial. The research was conducted at the Livestock Teaching and Research Farm of Joseph Sarwuan Tarka University, Makurdi, over an eight-week period. A total of 20 growing rabbits, aged 3 to 4 months, were randomly allocated to five dietary treatments containing 0%, 5%, 10%, 15%, and 20% BDG. The results indicated significant variations in total protein and cholesterol levels among the dietary treatments. Total protein levels increased from 5.33 g/dl in the control group (0% BDG) to 7.67 g/dl in the 20% BDG group, suggesting that BDG positively contributes to the nutritional intake of rabbits. Cholesterol levels varied as well, with the highest recorded at 108.33 mg/dl in the 15% BDG group, while remaining within acceptable limits across all treatments. Other biochemical parameters, including albumin, urea, and creatinine, showed no significant differences, indicating that the inclusion of BDG did not compromise health and kidney function. These findings underscore the potential of BDG as a nutritious and economically viable feed ingredient for rabbit farming, particularly in resource-limited settings. Incorporating up to 20% BDG into rabbit diets is feasible without adverse health effects, thus supporting sustainable livestock management practices. The study highlights the importance of utilizing agricultural by-products to enhance food security and improve the livelihoods of smallholder farmers. Future research should focus on the long-term impacts of BDG on growth performance and overall health in rabbits, as well as exploring other agricultural by-products that could further diversify feed sources.