Amino Acid Nutrition for Swine Production

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

Deadline for manuscript submissions: 28 February 2025 | Viewed by 1079

Special Issue Editor


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Guest Editor
Department of Animal and Dairy Sciences, Mississippi State University, Mississippi State, MS 39762, USA
Interests: animal nutrition; swine production; amino acid metabolism and nutritional implications; nutrigenomics; gut health and gut microbiota

Special Issue Information

Dear Colleagues,

Amino acids (AAs) are crucial components of swine diets, playing vital roles in growth, reproduction, and overall health. As protein building blocks, AAs are integral not only for muscle growth but also for the synthesis of biomolecules (e.g., enzymes, hormones, and antibodies). With the rising global demand for high-quality pork, optimizing AA nutrition has become paramount for enhancing feed efficiency, improving growth rates, and reducing the environmental impact of swine production. Despite significant advancements in the field, challenges such as accurately determining AA requirements, variability in AA bioavailability from different feed ingredients, and the need for sustainable diet formulations remain. Issues requiring further investigation include precise AA supplementation, interactions between dietary AAs and gut microbiota, and the economic implications of AA nutrition. A growing interest is also in functional AA studies, which go beyond the protein building blocks to affect metabolic pathways and physiological processes. These challenges underscore the need for a dedicated platform to address these critical issues and foster innovation in swine nutrition.

This Special Issue aims to compile cutting-edge research and reviews that can advance our understanding of AA roles for swine production. The multifaceted impacts of AAs on growth, health, feed efficiency, and overall swine productivity should also be explored. By gathering innovative studies and expert insights, this Special Issue seeks to discuss how precise AA nutrition can optimize swine production, enhance animal welfare, and support sustainable agricultural practices.

The scope of this Special Issue will encompass a broad range of topics, including, but not limited to, the following: the biological roles of essential and non-essential AAs; dietary strategies to meet specific AA requirements at different production stages; impacts of AA supplementation on immune function and disease resistance; the interactions between AAs and other dietary components; technique advancements for assessing AA bioavailability; and research on functional AAs. Contributions from researchers, nutritionists, and swine specialists are invited to ensure a comprehensive understanding of AA nutrition.

Dr. Shengfa Liao
Guest Editor

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Keywords

  • amino acid
  • nutrition
  • nutrient metabolism
  • nutrient function
  • swine
  • pork production
  • animal agriculture

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Published Papers (1 paper)

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Research

11 pages, 249 KiB  
Article
Effects of Dietary Supplementation of DL-Methionine or DL-Methionine Hydroxyl Analogue (MHA-Ca) on Growth Performance and Blood and Liver Redox Status in Growing Pigs
by Emmanuel O. Oladejo, Md Shamimul Hasan, Susan C. Sotak, John K. Htoo, James Brett, Jean M. Feugang and Shengfa F. Liao
Animals 2024, 14(23), 3397; https://doi.org/10.3390/ani14233397 - 25 Nov 2024
Viewed by 696
Abstract
Oxidative stress impairs pigs’ health and production performance. This study examined the effects of level and source of methionine (Met) supplementation against the diquat-induced oxidative stress in pigs. Forty growing barrows were randomly assigned to four groups. Groups 1 and 2 received a [...] Read more.
Oxidative stress impairs pigs’ health and production performance. This study examined the effects of level and source of methionine (Met) supplementation against the diquat-induced oxidative stress in pigs. Forty growing barrows were randomly assigned to four groups. Groups 1 and 2 received a basal diet that was adequate in energy and nutrients (Diet 1), Group 3 received a DL-Met-supplemented diet, and Group 4 received an MHA-Ca-supplemented diet. After 3 weeks of feeding (Phase 1), pigs were injected with 10 mL saline (Group 1) or 10 mg/kg-BW diquat in 10 mL saline (Groups 2, 3, and 4), and then continually fed for one week (Phase 2). During or at the end of Phase 1, there were no differences in nearly all of the growth performance and redox parameters among the four groups. During or at the end of Phase 2, however, the ADFI and ADG were lower (p < 0.01) in Group 2 than in Group 1 while the serum malondialdehyde content was higher (p < 0.05) in Group 2 than in Group 1. The serum glutathione peroxidase (GPX) activity and liver superoxide dismutase (SOD) activity were lower (p < 0.05) in Group 2 than in Group 1. The serum GPX activity, the serum total antioxidant capacity, and the liver GPX activity were higher (p < 0.05) in Group 3 than in Group 2. There were nearly no differences in these redox parameters between Groups 3 and 4. In conclusion, MHA-Ca and DL-Met, when used at an equivalent bioefficacy level, had similar effects on the pigs’ growth performance and antioxidative status. Therefore, increased Met supplementation can improve pigs’ antioxidative status. Full article
(This article belongs to the Special Issue Amino Acid Nutrition for Swine Production)
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