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- [2] INVESTIGATIONS ON THE VITAMIN-A AND BETA-CAROTENE CONTENT OF BLOOD-PLASMA IN INFERTILE COWS [J]. DEUTSCHE TIERARZTLICHE WOCHENSCHRIFT, 1988, 95 (05): : 195 - 197
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- [7] DISTRIBUTION OF BETA-CAROTENE AND VITAMIN-A IN LIPOPROTEIN FRACTIONS OF FERRET SERUM - EFFECT OF BETA-CAROTENE SUPPLEMENTATION [J]. CAROTENOIDS IN HUMAN HEALTH, 1993, 691 : 232 - 237
- [8] EFFECT OF BETA-CAROTENE ON FERTILITY OF COWS FED DIETS SUPPLEMENTED WITH VITAMIN-A [J]. ZOOTECNICA E NUTRIZIONE ANIMALE, 1980, 6 (01): : 47 - 58
- [9] THE EFFECT OF FERRODEX, VITAMIN-A AND ROVIMIX BETA-CAROTENE ON THE IRON AND COPPER LEVELS IN BLOOD-PLASMA OF CALVES [J]. ARCHIV FUR TIERERNAHRUNG-ARCHIVES OF ANIMAL NUTRITION, 1987, 37 (01): : 87 - 97