PSXI-20 Effects of dietary inclusion of omega-3 fatty acid-based supplement on biological parameters and sperm motility and morphology of developing beef bulls.

Summary

This study was designed to evaluate the effects of including an omega-3 fatty acid-based supplement in the diet of developing beef bulls on biological parameters and fertility. Weaned beef bull calves (n = 39) of Angus, Hereford, or Simmental breeding were stratified by BW and age to one of three dietary treatments in a completely randomized design. Treatments consisted of including an omega-3-based supplement at 1 of 3 levels to a common corn silage-based growing diet in which all diets were formulated to be isonitrogenous. The levels of the omega-3 fatty acid-based supplement consisted of 0.00 (CON), 0.22 (MOD), 0.43 (HI) kg per hd per day (DM basis) and bulls (n = 13 per treatment) were managed as a common group and individually fed in precision intake management bunks with individual