Kasmaei, Kamyar
- Department of Applied Animal Science and Welfare, Swedish University of Agricultural Sciences
Abstract
In this pilot study, the effects of phosphorus (P) supply on inorganic phosphorus (Pi) net absorption in dairy cows were investigated. Three non-lactating, non-pregnant, rumen-fistulated Swedish Red breed dairy cows were studied in a 3x3 Latin square design. Monosodium dihydrogen orthophosphate dihydrate (NaH2PO4*2H2O) was continuously infused into the abomasum for 4days. The solutions provided 0, 14.4 or 28.8g Pi/day. Rumen fluid volume and outflow rate were estimated at day four of each experimental period using cobalt-lithium EDTA as an external marker. Acid insoluble ash in feeds and faecal samples was used to quantify P faecal excretion. Concentrations of Pi in collected samples of rumen fluid, blood, faeces and urine were determined. Pi flow into the small intestine increased (p
Keywords
phosphorus overfeeding; rumen-fistulated cows; small intestine
Published in
Journal of Animal Physiology and Animal Nutrition
2013, volume: 97, number: 3, pages: 599-603
Publisher: WILEY-BLACKWELL
SLU Authors
Holtenius, Kjell
- Department of Applied Animal Science and Welfare, Swedish University of Agricultural Sciences
- Department of Applied Animal Science and Welfare, Swedish University of Agricultural Sciences
UKÄ Subject classification
Other Veterinary Science
Publication identifier
- DOI: https://doi.org/10.1111/j.1439-0396.2012.01282.x
Permanent link to this page (URI)
https://res.slu.se/id/publ/53067