EXALT 发表于 2025-3-30 08:28:40

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乐意 发表于 2025-3-30 14:56:52

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严厉谴责 发表于 2025-3-30 20:25:58

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冷淡一切 发表于 2025-3-30 22:01:41

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枪支 发表于 2025-3-31 04:53:47

Physiological Aspects of Copper in Pig Dietsfeed which is considered covering the optimal requirement for growth. Growth rate stimulation from 8 to 9.7% and increasing feed efficiency by 5.5 to 7.9% (Braude et al., 1962; Braude, 1967) have been demonstrated. Experiments using up to 207 ppm of Cu in the feed given as CuSO. conclude that the gr

deface 发表于 2025-3-31 07:23:24

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查看完整版本: Titlebook: Copper in Animal Wastes and Sewage Sludge; Proceedings of the E P. L’Hermite,J. Dehandtschutter Conference proceedings 1981 ECSC, EEC, EAEC