Effect of fluorine on dairy cattle. V. Fluorine in the urine as an estimator of fluorine intake

Journal Article · Fri Mar 01 04:00:00 EST 1963 · Am. J. Vet. Res.; (United States)

OSTI ID:5352852

Shupe, J L; Harris, L E; Greenwood, D A; Butcher, J E; Nielsen, H M

Thirty-two Holstein-Friesian cows were fed four levels of fluorine, two levels of calcium-phosphorus mineral, and two levels of a concentrate mix from about 3 months to 7.5 years of age. Two digestion and balance trials were conducted before calving and three after the animals started to lactate. In addition, after the cows were on trial for 7 years and 52 days, urine was collected approximately every 1.5 hours and composited for each 3-hour interval over a 24-hour period. During these and previous studies, it was found that urine samples should be taken in the morning for best results and that, when possible, samples of urine should be obtained from several cows and the results pooled to give a reliable index of the fluorine consumed. The determination of the fluorine:creatinine ratio was found to have merit as a means of adjusting for differences in urine volumes. A correlation was found to exist among concentration of fluorine in the urine, amount of fluorine in dry matter consumed, and the length of time that fluorine is ingested. By determining parts per million (ppm) of fluorine in the urine and combining this with a knowledge of the length of time the animals had ingested fluorine, the ppm of fluorine in the ingested dry matter could be estimated. Taken alone, however, this measurement was an inadequate criterion for a definite diagnosis of fluorosis in cattle. 10 references, 4 figures, 3 tables.

• Research Organization: Utah State Univ., Logan
• OSTI ID: 5352852
• Journal Information: Am. J. Vet. Res.; (United States), Journal Name: Am. J. Vet. Res.; (United States) Vol. 24:99; ISSN AJVRA
• Country of Publication: United States
• Language: English

Related Subjects

560305* -- Chemicals Metabolism & Toxicology-- Vertebrates-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ALKALINE EARTH METALS
ANIMAL FEEDS
ANIMALS
AZOLES
BIOLOGICAL EFFECTS
BIOLOGICAL INDICATORS
BIOLOGICAL MATERIALS
BIOLOGICAL WASTES
BODY FLUIDS
CALCIUM
CATTLE
CLEARANCE
COWS
CREATININE
DATA
DOMESTIC ANIMALS
ECOLOGICAL CONCENTRATION
ELEMENTS
EXCRETION
EXPERIMENTAL DATA
FLUORINE
FOOD
HALOGENS
HETEROCYCLIC COMPOUNDS
IMIDAZOLES
IMINES
INFORMATION
INGESTION
INTAKE
MAMMALS
MATERIALS
METALS
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHOSPHORUS
RUMINANTS
URINE
VERTEBRATES
WASTES