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Micro-X-ray fluorescence (μ-XRF) and micro-X-ray absorption fine structure (μ-XAFS) are not widely used in animal science. The objective of this experiment was to employ μ-XRF and μ-XAFS technique to determine the change of Zn quantity, distribution and chemical state (Zn 2+ chemical state, organic zinc chemical state) into intestinal wall using different zinc sources. 45 newly hatched healthy...
Stress behaviors often result when piglets are abruptly weaned and mixed. Surplus dietary tryptophan (Trp) may reduce stress. In this study, three levels of dietary Trp were used, representing the standard requirement for growth (control), supplemental dietary Trp (1g/kg and 2g/kg of feed). Piglets were fed the diets for 28d, during which observations were divided into three phases: prophase (4–6d),...
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