ArticleJournal of animal science and technology2026
Effect of tryptophan supplementation on performance, hormones, and behavioral trait in weaning pig and lactating sow.
Article in Journal of animal science and technology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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1 citing paper in PubMed.
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Tryptophan plays a crucial role in the regulation of aggressive behavior during stressful situations. In this study, we aim to evaluate the effects of different levels of tryptophan supplementation in the feed of weaning pigs and lactating sows. In experiment 1, a total of 144 weaning pigs (Landrace × Yorkshire × Duroc) with initial mean body weight of 6.63 ± 0.21 kg were allotted to three treatment groups with six replicates per group of eight pigs per replicate in a completely randomized design. The treatments included a control group (CW), TW6 (0.06% tryptophan + basal diet), and TW12 (0.12% tryptophan + basal diet). In experiment 2, a total of 40 lactating sows (Landrace × Yorkshire) were allotted to four treatment groups with ten replicates per group of one pig per replicate in a completely randomized design. The treatments included a control (CL) group, TL3 (0.03% tryptophan + basal diet), TL6 (0.06% tryptophan + basal diet), and TL9 (0.09% tryptophan + basal diet). The results of experiment 1 indicated the TW12 group had significantly higher (
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