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Anim Sci J ; 89(8): 1102-1106, 2018 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-29808628

RESUMO

Data from 26 Japanese Black cows were collected to clarify the effects of supplemental ß-carotene on colostral immunoglobulin (Ig) and plasma ß-carotene and Ig in the cows. Cows were assigned to control or ß-carotene groups from 21 days before the expected calving date to 60 days after parturition. Supplemental ß-carotene was provided at 500 mg/day in the ß-carotene group. Supplemental ß-carotene drastically increased plasma ß-carotene concentrations in the cows from parturition to 60 days after parturition, and plasma ß-carotene concentrations in the control and ß-carotene groups at parturition were 202 and 452 µg/dl, respectively. Supplemental ß-carotene had no effects on plasma IgG1 , IgA or IgM concentrations at parturition. Supplemental ß-carotene increased colostral IgG1 concentrations in the cows, but colostral ß-carotene, IgA and IgM concentrations were not affected by supplemental ß-carotene. These results indicate that supplemental ß-carotene is effective to enhance colostral IgG1 concentrations and plasma ß-carotene concentrations in Japanese Black cows.


Assuntos
Fenômenos Fisiológicos da Nutrição Animal/imunologia , Colostro/imunologia , Colostro/metabolismo , Suplementos Nutricionais , Imunoglobulina G/metabolismo , beta Caroteno/administração & dosagem , beta Caroteno/sangue , Animais , Bovinos , Dieta , Feminino , Imunoglobulinas/sangue , Imunoglobulinas/metabolismo , Parto/sangue , Parto/imunologia , Gravidez , beta Caroteno/farmacologia
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