Soil ingestion by dairy cattle

Conference · Thu Feb 15 04:00:00 EST 1990

OSTI ID:6640534

Darwin, R

Ingested soil may be a source of minerals to grazing cattle; it may also be a source of radionuclides, heavy metals, and organic toxins. The importance of soil ingestion in the milk pathway depends on the amount of soil ingested, the ratio of the mineral concentration in soil to that in herbage, and the ability of the cattle to solubilize and absorb the soil-derived minerals. The amount of soil ingested by cattle on pasture, in turn, depends upon the stocking level, the quantity of forage available, and the soil ingesting propensity of individual cows. The objective of this note is to summarize some of the information about soil ingestion by dairy cattle and to suggest methods for incorporating soil ingestion into the Hanford Environmental Dose Reconstruction (HEDR) Phase I milk model. 5 refs., 4 tabs.

• Research Organization: Pacific Northwest Lab., Richland, WA (USA)
• Sponsoring Organization: DOE/DP
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 6640534
• Report Number(s): PNL-SA-17918-HEDR; CONF-9002141--1; ON: DE90017196
• Country of Publication: United States
• Language: English

Related Subjects

553000* -- Agriculture & Food Technology
60 APPLIED LIFE SCIENCES
ALKALI METAL ISOTOPES
ALKALINE EARTH ISOTOPES
ANIMALS
ANTIGENS
AUSTRALASIA
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOLOGICAL MATERIALS
BIOLOGICAL PATHWAYS
BODY FLUIDS
CATTLE
CESIUM 137
CESIUM ISOTOPES
DOMESTIC ANIMALS
ECOLOGICAL CONCENTRATION
ELEMENTS
ENVIRONMENTAL TRANSPORT
EVEN-EVEN NUCLEI
FOOD
FOOD CHAINS
INGESTION
INTAKE
INTERMEDIATE MASS NUCLEI
ISOTOPES
MAMMALS
MASS TRANSFER
MATERIALS
MATHEMATICAL MODELS
METALS
MILK
MINERALS
NEW ZEALAND
NUCLEI
ODD-EVEN NUCLEI
RADIOISOTOPES
RADIONUCLIDE KINETICS
RADIONUCLIDE MIGRATION
RUMINANTS
SEASONAL VARIATIONS
SOILS
STRONTIUM 90
STRONTIUM ISOTOPES
TOXIC MATERIALS
TOXINS
VARIATIONS
VERTEBRATES
YEARS LIVING RADIOISOTOPES