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Titolo:
Effects of oral administration of "rumen-bypass" vitamin D-3 on vitamin D and calcium metabolism in periparturient cows
Autore:
Yamagishi, N; Dohmae, H; Shirato, A; Sato, J; Sato, R; Naito, Y;
Indirizzi:
Iwate Univ, Fac Agr, Dept Vet Internal Med, Morioka, Iwate 0208550, Japan Iwate Univ Morioka Iwate Japan 0208550 Med, Morioka, Iwate 0208550, Japan Minist Agr Forestry & Fisheries Japan, Natl Livestock Breeding Ctr, Iwate Stn, Morioka, Iwate 0200123, Japan Minist Agr Forestry & Fisheries Japan Morioka Iwate Japan 0200123 , Japan
Titolo Testata:
JOURNAL OF VETERINARY MEDICAL SCIENCE
fascicolo: 4, volume: 62, anno: 2000,
pagine: 403 - 408
SICI:
0916-7250(200004)62:4<403:EOOAO">2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
DAIRY-COWS; PROTECTED METHIONINE; PHOSPHORUS; HOMEOSTASIS; RUMINANTS;
Keywords:
calcium; cattle; parturition; "rumen-bypass"; vitamin D-3;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Naito, Y Iwate Univ, Fac Agr, Dept Vet Internal Med, 3-18-8 Ueda, Morioka,Iwate 0208550, Japan Iwate Univ 3-18-8 Ueda Morioka Iwate Japan 0208550 0208550, Japan
Citazione:
N. Yamagishi et al., "Effects of oral administration of "rumen-bypass" vitamin D-3 on vitamin D and calcium metabolism in periparturient cows", J VET MED S, 62(4), 2000, pp. 403-408

Abstract

Eleven late-pregnant Jersey cows were assigned to two groups; a group (PO-RBVD group) consisting of five cows treated with an oral administration of 10 million I.U. of an encapsulated form of vitamin D-3 ("rumen-bypass" VD3;RBVD3) and another group (IMVD group) consisting of the other six treated with an intramuscular injection of 10 million I.U. of vitamin D-3 (VD3). The cows received the RBVD3 or VD3 administration at 7 days before the expected parturition. The changes in the plasma concentrations of vitamin D metabolites, ionized Ca (Ca++) and inorganic phosphorus (iP) were evaluated. Of the vitamin D metabolites, the plasma 25-hydroxyvitamin D concentrations inPO-RBVD group increased significantly after the RBVD3 administration and remained in high levels that were significantly higher than those in IMVD group. This suggested that RBVD3 was absorbed rapidly and excellently from the post-ruminal digestive tract without the degradation by ruminal microorganisms. The plasma Ca++ and iP concentrations in PO-RBVD group tended to be higher after the administration and around parturition than those in IMVD group. From these observations, it was suggested the oral RBVD3 administration had more potent ability to prevent parturient paresis compared with the VD3 injection used widely in Japan.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/11/20 alle ore 15:15:04