ArticleAnimals : an open access journal from MDPI2026
Effects of Low-Protein Diets on Growth Performance, Intestinal Morphology, Apparent Ileal Amino Acid Digestibility and Jejunal Amino Acid Transporter Gene Expression in Heat-Stressed Growing Male Pekin Ducks.
Article in Animals : an open access journal from MDPI, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The present study investigated the effects of low-protein (LP) diets on growth performance, intestinal morphology, apparent ileal digestibility (AID), and jejunal amino acid (AA) transporter mRNA expression in heat-stressed Pekin ducks. A total of 108 fourteen-day-old male ducks were randomly allotted to three treatments, each with six replicates of six birds: a thermoneutral (TN) group fed a control (CON) diet, a heat stress (HS) group fed the CON diet, and an HS-LP group fed the LP diet. Ducks were maintained at 22 °C (TN) or 30 °C (HS and HS-LP) for 3 wk. The CON and LP diets contained 17.5% and 16.0% CP, respectively, with similar AA profiles. Compared with the TN group, the HS group showed reduced BW, ADFI, and ADG and increased F:G (
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