Soil ingestion by dairy cattle
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
- Resource Relation:
- Conference: Technical steering panel meeting, Richland, WA (USA), 15-16 Feb 1990
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
INGESTION
MATHEMATICAL MODELS
MINERALS
ECOLOGICAL CONCENTRATION
SOILS
BIOLOGICAL PATHWAYS
CATTLE
CESIUM 137
FOOD CHAINS
METALS
MILK
NEW ZEALAND
RADIOISOTOPES
RADIONUCLIDE KINETICS
RADIONUCLIDE MIGRATION
SEASONAL VARIATIONS
STRONTIUM 90
TOXINS
ALKALI METAL ISOTOPES
ALKALINE EARTH ISOTOPES
ANIMALS
ANTIGENS
AUSTRALASIA
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOLOGICAL MATERIALS
BODY FLUIDS
CESIUM ISOTOPES
DOMESTIC ANIMALS
ELEMENTS
ENVIRONMENTAL TRANSPORT
EVEN-EVEN NUCLEI
FOOD
INTAKE
INTERMEDIATE MASS NUCLEI
ISOTOPES
MAMMALS
MASS TRANSFER
MATERIALS
NUCLEI
ODD-EVEN NUCLEI
RUMINANTS
STRONTIUM ISOTOPES
TOXIC MATERIALS
VARIATIONS
VERTEBRATES
YEARS LIVING RADIOISOTOPES
553000* - Agriculture & Food Technology