Evidence map›Paper›PMID 41679271›Full record

ArticleAnimal bioscience2026

Recent updates on amino acid requirements of pigs based on phenotypic improvements: invited review.

Hyunjun Choi, Jung Yeol Sung, Jeonghyeon Son, Sung Woo Kim

Abstract read
In one paragraph

Article in Animal bioscience, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Hyunjun ChoiDepartment of Animal Science, North Carolina State University, Raleigh, NC, USA.
Jung Yeol SungDepartment of Animal Science, North Carolina State University, Raleigh, NC, USA.
Jeonghyeon SonDepartment of Animal Science, North Carolina State University, Raleigh, NC, USA.
Sung Woo KimDepartment of Animal Science, North Carolina State University, Raleigh, NC, USA.

Funding

North Carolina Agricultural FoundationUSDA-NIFA Hatch Fund
6 · The paper itself

Abstract

Amino acid (AA) requirements reported in previous literature, such as those of the National Research Council (NRC) published in 2012 based on pre-2010 data, do not adequately reflect the improved genetic potential of pigs and thus require updating. Accordingly, this review aimed to provide recent updates on the AA requirements of pigs based on the standardized ileal digestible (SID) lysine (Lys) to net energy (NE) ratio (SID Lys:NE) and the ideal ratios of SID methionine (Met), threonine (Thr), tryptophan (Trp), valine (Val), and isoleucine (Ile) to SID Lys (SID AA:Lys), derived from meta-analyses for average daily gain (ADG) and gain-to-feed ratio. The optimal SID Lys:NE for ADG in this review are consistently greater than the ratios reported by the NRC across different phases, indicating that the improved genetic potential for lean growth requires greater optimal SID Lys:NE. The optimal SID Met:Lys, SID Trp:Lys, and SID Ile:Lys for ADG remain constant with increasing body weight (BW) of pigs, but the ratios are also greater than those reported by the NRC. However, the optimal SID Thr:Lys for ADG increases as BW of pigs increases, likely due to the increasing proportion of maintenance requirement relative to the total Thr requirement. The optimal SID Val:Lys for ADG is greater in the nursery phase than in the grower phases, suggesting that weaning-associated intestinal and immune challenges would increase requirement for Val. Both optimal SID Thr:Lys and SID Val:Lys are greater than the ratios reported by the NRC. In conclusion, these results suggest that the optimal SID Lys:NE and SID AA:Lys in pig diets are greater than the ratios reported by the NRC, and different ratios of SID Thr:Lys and SID Val:Lys should be applied for pigs with different BW.

Indexed as

Amino AcidsGrowth PerformanceLysineMeta-analysisPigsRequirement

Identifiers

PMID41679271
PMCPMC13064998

What Socratic holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.