Trace elements and domestic animals.

Essential trace elements for plants, animals and humans

A field trial, a pot experiment and a survey in organically farmed leys were undertaken to investigate whether the N-fixation in red clover pastures in Norway was limited by a low supply of Co and/or Mo. Fertilization with Mo did not cause any higher production nor Nfixation, whereas the N-yield both from established clover leys and red clover grown in pots increased slightly after application ...

Trace elements.

Air Pollution and Domestic Animals

The Neolithic revolution, which began some 12,000 years ago in Turkey and in other parts of the Fertile Crescent, caused man to adopt a sedentary lifestyle, which on its turn speeded up the process of domestication of animals. The dog was already domesticated before this revolution and had served man as help in hunting. During hunting, man probably figured out that a few of the hunted species c...

Trypanosoma Cruzi and Domestic Animals

Chagas disease is one of the most important zoonosis affecting the Latin America. Despite important progress achieved in last decades through strategies at regional level against vectoral transmission and improvement of screening among blood donors, the disease continues to represent a public health priority. Knowledge on epidemiology of the etiological agent Tripanosoma cruzi is of outmost imp...

Trace Elements and Epidemiology.

In the one hundred years since the birthday of Academician W. J. Vernadsky, in whose honour this Geochemical Conference is being held, the population of our world has grown from about 1,250 million to not far short of 3,150 million, an addition of some 1,900 million persons. Thus, there are approximately two and one half times as many people in the world today as there were when Academician Ver...