Page 170 of articles about nutrition
Selenoprotein gene expression in thyroid and pituitary of young pigs is not affected by dietary selenium deficiency or excess

Dimension and design of the gestation unit
The gestation unit is basically a parking unit where sows should be kept comfortable to allow the pregnancy to develop

Feed wastage
Regardless of the causes we often waste food and the animals do not consume everything that arrives to the farm.
USA - First federal agency admits ethanol doubled feed costs
