Nutritional Deficiencies in Livestock

General Introduction

“…For both humans and animals, deficiencies of trace minerals (also true for vitamins) are less likely when a variety of foods or feeds produced from different geological regions are available. Allman and Hamilton (1949) gathered information from various parts of the world on locations of livestock nutritional deficiencies. Russell and Duncan (1956) and Underwood (1981) have reported selected world locations of mineral deficiencies and toxicities.…”

Iodine

“…However, a physiological disease of rice plants named "Akagare" has been reported (Yuita 1979), induced by excessive absorption of iodine from soil enriched with easily soluble iodine when land was converted for submerged paddy fields (KabataPendias and Pendias 1992). 9.4.6.2 Animals Essentiality in ruminants Among grazing livestock, iodine deficiency is the most common of all mineral deficiencies (Allman andHamilton 1949, Gürtler et al 1985). Iodine deficiency disorders including goiter occur in animals in almost every country where human goiter is endemic.…”

Iodine

“…Since animals usually receive feeds produced locally, they are often more susceptible to goiter than are human beings. Although not true today, Allman and Hamilton (1949) suggested that I deficiency was the most widespread of all mineral deficiencies in grazing stock.…”