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This beet pulp was used for trials 2, 7, 8 (Cows D14, 77, A18). b This beet pulp was used for trial 5 (Cow 66). c This corn gluten meal was used for trials 16 and 17 (Cows A29 and A46). d This soybean oil meal was used in trial 15 (Cow 442), see table 3.
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Huffman et al. (1950) studied this question.
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