The variability of maize

It has been shown by several studies that metabolisable energy (ME) values vary significantly, not only between different feed ingredients, but also between different batches of the same feed ingredient within the same region. When formulating feed using tabulated values, this can result in the variability of maize ME of more than 50 kCal/kg between…

Maize hardness matters

Introduction A recent study published in the Journal of Applied Animal Nutrition by Singh and Ravindran (2019) investigated the influence of the inclusion of whole maize differing in endosperm hardness on performance, nutrient utilisation, and digestive tract development of broiler chickens. Whole grain inclusion in poultry diets is common practice all over the world. This…

A-maize-ing prediction of energy for broilers

In commercial broiler operations, feed accounts for majority of the input costs, and dietary energy represents up to three quarters of the cost. In poultry, there are major economic implications to an over- or undersupply of dietary energy, as this leads to either reduced or excess feed intake, imbalances in the protein-to-energy ratio, poor feed…