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The effects of feeding β-carotene (βC) on levels of βC and vitamin A (retinol) in blood and tissues, and on beef quality, were evaluated in 120 steers. Each steer received supplementary βC (at concentrations of 0, 600, 1200, or 1800mg/day) for 90days and then received no supplementary βC for 60days. βC significantly increased in blood serum, liver, and subcutaneous and omental fat; linearly increased...
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