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Efficacy of 1 alpha hydroxyvitamin D3 in the prevention of bovine parturient paresis.

Abstract
One hundred and seventeen Israeli-Friesian cows from herds with a milk fever incidence of more than 15 per cent were injected intramuscularly with either 350 micrograms 1 alpha hydroxyvitamin D3 (1 alpha OHD3) in propylene glycol or with the vehicle alone, close to calving. If parturition had not occurred within 72 hours a second injection was administered; parturition was induced two days after the second injection if necessary. There were 10 cases of milk fever among 57 control cows as opposed to two cases among the 60 animals treated with 1 alpha OHD3. In an attempt to prolong the effect of the drug, Israeli-Friesian cows were injected intramuscularly with 350 micrograms 1 alpha OHD3 in either 10 ml propylene glycol or arachis oil. 1 alpha OHD3 in arachis oil did not prolong the effect of the drug. 1 alpha OHD3 in propylene glycol increased plasma calcium concentrations more rapidly than when the drug was administered in oil. Additional cows of the same breed and age were injected intramuscularly with 350 micrograms 1 alpha OHD3 in propylene glycol. Five of the animals received a second dose four days, and five received a second dose five days after the first injection. Five animals served as uninjected controls. The plasma calcium levels of the injected cows were significantly higher (P less than 0.01) than those of the controls from the second until the 14th day after the first injection. Based on these results 451 Israeli-Friesian cows from herds with a milk fever incidence of more than 15 per cent were injected intramuscularly with 1 alpha OHD3 close to calving.(ABSTRACT TRUNCATED AT 250 WORDS)
AuthorsM Sachs, A Bar, O Nir, D Ochovsky, B Machnai, E Meir, B Z Weiner, Z Mazor
JournalThe Veterinary record (Vet Rec) Vol. 120 Issue 2 Pg. 39-42 (Jan 10 1987) ISSN: 0042-4900 [Print] England
PMID3824832 (Publication Type: Comparative Study, Journal Article, Research Support, Non-U.S. Gov't)
Chemical References
  • Hydroxycholecalciferols
  • Peanut Oil
  • Plant Oils
  • Propylene Glycols
  • Propylene Glycol
  • Calcium
  • alfacalcidol
Topics
  • Animals
  • Calcium (blood)
  • Cattle
  • Cattle Diseases (prevention & control)
  • Female
  • Hydroxycholecalciferols (administration & dosage, therapeutic use)
  • Injections, Intramuscular
  • Parturient Paresis (prevention & control)
  • Peanut Oil
  • Plant Oils
  • Pregnancy
  • Propylene Glycol
  • Propylene Glycols

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