Advancing Nutrient Utilization, Product Quality, and Production Efficiency in Livestock Through Omics and Targeted Molecular Approaches

A special issue of Animals (ISSN 2076-2615). This special issue belongs to the section "Animal Nutrition".

Deadline for manuscript submissions: 31 December 2025 | Viewed by 604

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Guest Editor
Department of Animal and Food Sciences, Texas Tech University, Lubbock, TX, USA
Interests: animal nutrition; gut and systemic health; meat quality; omics analyses
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Special Issue Information

Dear Colleagues,

Significant advancements have been made in investigating animal health, product quality, and production efficiency using diverse molecular techniques. Both untargeted and targeted analyses play essential roles in understanding biological processes and improving livestock production. Omics approaches including genomics, transcriptomics, proteomics, metabolomics, and lipidomics offer comprehensive insights that facilitate the analysis of entire molecular profiles. In addition, targeted techniques such as PCR, Western blot, ELISA, and HPLC provide precise quantification of specific biomarkers, complementing omics research and enhancing our ability to tackle key challenges in animal health, product quality, and productivity.

The following Special Issue highlights the application of both omics-based and targeted molecular techniques to enhance livestock productivity, health, and product quality. The scope of this Special Issue includes microbiome analysis, genotyping, RNA sequencing, proteomics, metabolomics, lipidomics, and targeted methodologies that facilitate the identification of specific biological molecules and pathways relevant to nutrient utilization, product quality, and overall production efficiency.

By bridging the gap between molecular research and practical applications, this Special Issue aims to offer new perspectives, methodologies, and practical insights that inspire researchers to integrate these approaches into their work. We welcome submissions of original research, case studies, and reviews, particularly those incorporating primary datasets and novel perspectives that deepen our understanding of livestock health, product quality, and production efficiency.

Dr. Janghan Choi
Guest Editor

Manuscript Submission Information

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Keywords

  • animal nutrition
  • gut and systemic health
  • meat quality
  • omics analyses
  • microbiome analysis
  • genotyping
  • RNA sequencing
  • proteomics
  • metabolomics
  • lipidomics
  • nutrient utilization
  • production efficiency

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Published Papers (1 paper)

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Research

12 pages, 230 KiB  
Article
Effects of Pigs’ Weaning Weight on Growth Performance and Blood Immunological, Antioxidant, and Gut Permeability Parameters in Early Nursery Period
by Chan Ho Kwon, Eva S. Safaie, Jannell A. Torres and Young Dal Jang
Animals 2025, 15(8), 1119; https://doi.org/10.3390/ani15081119 - 12 Apr 2025
Viewed by 398
Abstract
This study was conducted to investigate the effect of pigs’ weaning weight (WW) on their growth performance and blood immunological, antioxidant, and gut permeability parameters in the early nursery period. At weaning, a total of 48 pigs, weaned at 20.7 ± 0.74 d [...] Read more.
This study was conducted to investigate the effect of pigs’ weaning weight (WW) on their growth performance and blood immunological, antioxidant, and gut permeability parameters in the early nursery period. At weaning, a total of 48 pigs, weaned at 20.7 ± 0.74 d of age, were allotted to two WW categories—HWW, with a WW over 5.5 kg (average 6.79 ± 0.53 kg), and LWW, with a WW of less than 5.5 kg (average 4.43 ± 0.56 kg)—for a 14 d postweaning period. The WW did not affect the average daily gain (ADG) in d 0–7 postweaning or the plasma malondialdehyde levels over the entire period. HWW pigs had a higher body weight and ADG than LWW pigs (p < 0.05) in the overall period, with greater plasma immunoglobulin G (p < 0.05) and A (p = 0.06, tendency) levels at d 7 postweaning and superoxide dismutase activity at d 14 postweaning (p = 0.05, tendency), with positive correlations with the WW (p < 0.05). HWW pigs had lower plasma diamine oxidase (p < 0.05) and d-lactate (p = 0.06, tendency) levels at d 14 postweaning, with a negative correlation with the WW (p < 0.05). In conclusion, although there was no effect of the WW on growth rate in the first week postweaning and oxidative stress in the early nursery period, HWW pigs exhibited greater growth performance, immunoglobulin levels, and antioxidant capacity but lower gut permeability than LWW pigs in the early nursery period. Full article
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