Jim Quigley

IntroductionAcquisition of passive immunity is essential to calf health and growth. Provision of IgG using colostrum replacer (CR) products is increasingly common in the industry, but few data are available to document half-life of CR-derived IgG, particularly when varying amounts of CR are fed. Our objective was to evaluate concentrations of serum IgG in calves fed varying amounts of CR for the f ...

Introduction Accurate predictions of nutrient supply and nutrient requirements are essential to modern ration formulations and animal production. Accurate and precise models allow provision of nutrients to meet requirements for maintenance and optimal production without supplying excess nutrients that contribute to inefficiency or environmental damage.Most nutrient models predict supply of metabol ...