Abstract Knowledge about the amino acid requirements and the response of pigs to the
amino acid supply is essential in feed formulation. A deficient AA supply results in a …

Pigs require energy for maintenance and productive purposes, and an accurate amount of
available energy in feeds should be provided according to their energy requirement …

Consumption of animal-source food is criticised, among other reasons, for its relatively high
environmental impact. It is, however, increasingly acknowledged that livestock can …

Feed-use (FU) amino acids, at constant performance, make it possible to reduce the protein
content of pig feeds and nitrogen excretion by the animals. The aim of this study was to …

From results obtained over the last 20 years on energy and amino acid utilisation in
reproductive sows, it has become possible to improve the determination of nutrient …

The efficiency of pig production using nutrients has increased over the years. Still, better
efficiency of nutrient utilization can be achieved by feeding pigs with diets adjusted to their …

Livestock production has a variety of environmental impacts such as greenhouse gas
emissions, water pollution, acidification, and primary energy consumption. The demand for …

The high cost of feed ingredients, the use of non-renewable sources of phosphate and the
dramatic increase in the environmental load resulting from the excessive land application of …

Nutrient requirement change over time and individual variability in pigs influences the
efficiency of nutrient utilization. These variabilities should be considered to predict nutrient …

The sustainability of animal production relies on the judicious use of phosphorus (P).
Phosphate, the mined source of agricultural phosphorus supplements, is a non-renewable …