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Journal of Dairy Science

Eger, S., Agricultural Research Organization, Volcani Center, P.O.B. 6, Bet Dagan, 50250, Israel
Drori, D., Agricultural Research Organization, Volcani Center, P.O.B. 6, Bet Dagan, 50250, Israel
Kadoori, I., Agricultural Research Organization, Volcani Center, P.O.B. 6, Bet Dagan, 50250, Israel
Miller, N., Agricultural Research Organization, Volcani Center, P.O.B. 6, Bet Dagan, 50250, Israel
Schindler, H., Agricultural Research Organization, Volcani Center, P.O.B. 6, Bet Dagan, 50250, Israel

In a series of experiments over 3 yr, relatively low doses of selenium and vitamin E were injected intramuscularly 3 wk prepartum to pregnant Israeli-Holstein dairy cows in a high-producing herd (9000 kg milk/yr) with a history of retained placenta in 17% of the primiparous and 28% of the multiparous animals, as recorded for the 12 mo preceding the study. Selenium ranged from .035 to .109 ppm in the prepartum diet and from .160 to .200 ppm in the postpartum diet. Doses of selenium ranging from 2.3 to 23.0 mg reduced the incidence of retained placenta in 186 primiparous and in 428 multiparous to 7 and 15%, which was half of that of controls. Low doses of selenium (2.3 to 4.6 mg) tended to be more effective than higher ones. Selenium alone was at least as effective as a combination of selenium and vitamin E, Dosage, timing, mechanism, and interactions of selenium with other factors in reducing the incidence of retained placenta need clarification. © 1985, American Dairy Science Association. All rights reserved.
פותח על ידי קלירמאש פתרונות בע"מ -
הספר "אוצר וולקני"
אודות
תנאי שימוש
Effects of Selenium and Vitamin E on Incidence of Retained Placenta
68

Eger, S., Agricultural Research Organization, Volcani Center, P.O.B. 6, Bet Dagan, 50250, Israel
Drori, D., Agricultural Research Organization, Volcani Center, P.O.B. 6, Bet Dagan, 50250, Israel
Kadoori, I., Agricultural Research Organization, Volcani Center, P.O.B. 6, Bet Dagan, 50250, Israel
Miller, N., Agricultural Research Organization, Volcani Center, P.O.B. 6, Bet Dagan, 50250, Israel
Schindler, H., Agricultural Research Organization, Volcani Center, P.O.B. 6, Bet Dagan, 50250, Israel

Effects of Selenium and Vitamin E on Incidence of Retained Placenta
In a series of experiments over 3 yr, relatively low doses of selenium and vitamin E were injected intramuscularly 3 wk prepartum to pregnant Israeli-Holstein dairy cows in a high-producing herd (9000 kg milk/yr) with a history of retained placenta in 17% of the primiparous and 28% of the multiparous animals, as recorded for the 12 mo preceding the study. Selenium ranged from .035 to .109 ppm in the prepartum diet and from .160 to .200 ppm in the postpartum diet. Doses of selenium ranging from 2.3 to 23.0 mg reduced the incidence of retained placenta in 186 primiparous and in 428 multiparous to 7 and 15%, which was half of that of controls. Low doses of selenium (2.3 to 4.6 mg) tended to be more effective than higher ones. Selenium alone was at least as effective as a combination of selenium and vitamin E, Dosage, timing, mechanism, and interactions of selenium with other factors in reducing the incidence of retained placenta need clarification. © 1985, American Dairy Science Association. All rights reserved.
Scientific Publication
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