Advancements in Lipid and Fatty Acid Nutrition for Monogastric Animals

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

Deadline for manuscript submissions: closed (1 May 2025) | Viewed by 1424

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Guest Editor
Faculty of Animal Nutrition, Unity Environmental University, New Gloucester, ME, USA
Interests: swine and poultry; nutritional immunology; feline and canine nutrition; amino acids; metabolism; feed additives; feed efficiency
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Special Issue Information

Dear Colleagues,

Research on lipid nutrition in monogastric animals, such as swine, poultry, canines, and felines, is essential for enhancing growth performance, improving health, and ensuring the production of high-quality animal products. As global demand for animal protein and optimal companion animal nutrition continues to rise, optimizing lipid nutrition through ongoing research is critical for promoting sustainable and efficient production practices for monogastric species, including livestock and pets.

This Special Issue will serve as a forum for presenting the latest findings on lipid nutrition across monogastric species, covering key areas such as (1) Growth Performance and Feed Efficiency, (2) Health and Immune Function, (3) Meat Quality, (4) Environmental Impact, and (5) Nutrient Interactions.

We invite contributions that push the boundaries of knowledge in lipid nutrition and metabolism in monogastric animals and encourage the submission of original research papers and comprehensive literature reviews.

Dr. Anoosh Rakhshandeh
Guest Editor

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Keywords

  • lipid
  • fatty acid
  • monogastric
  • nutrition and immune function
  • metabolism
  • feline and canine

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Published Papers (2 papers)

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Research

14 pages, 2029 KiB  
Communication
The Effect of Poppy Oil on Egg Production and Calcium Metabolism in Japanese Quail
by Csaba Szabó, Xénia Ozsváth, Brigitta Csernus, Gabriella Gulyás, Márta Horváth, Levente Czeglédi, János Oláh, Nafiatur Rizqoh, Gabriele Achille and János Posta
Animals 2025, 15(9), 1348; https://doi.org/10.3390/ani15091348 - 7 May 2025
Viewed by 192
Abstract
Consumers tend to favor natural dietary supplements to improve their health. However, vendors rarely cite scientific evidence to justify these claims. In the case of poppy oil, it is often mentioned as having a positive effect on Ca metabolism-related disorders, but no proof [...] Read more.
Consumers tend to favor natural dietary supplements to improve their health. However, vendors rarely cite scientific evidence to justify these claims. In the case of poppy oil, it is often mentioned as having a positive effect on Ca metabolism-related disorders, but no proof has been provided. Therefore, the aim of our trial was to test the possible effect of poppy oil on calcium metabolism using Japanese quail layers as a model animal. A total of 120 four-week-old quail were divided into three dietary treatments (four cages per treatment, with ten birds in each cage): a control group (using sunflower oil as the energy source in the diet), 0.5%, and 1% poppy oil supplementation (replacing sunflower oil). Egg production, eggshell thickness, eggshell strength, and egg yolk color were investigated. Ca retention was determined using the acid-insoluble ash method. At the end of the experiment, two birds per cage were sacrificed, and uterus and jejunum samples were collected for gene expression analyses. Poppy oil supplementation improved egg production in terms of intensity, egg weight, and eggmass production. The thickness and eggshell strength decreased when 1% poppy oil was fed to the animals, while Ca retention improved. Poppy oil supplementation increased the expression of Ca transporter genes (CALB1, SLC8A1, and SLC26A9) in the uterus and ITPR1 in the jejunum. Our results indicate a possible effect of poppy oil on Ca metabolism. Further studies are needed to identify the active compound and to understand the mode of action. Full article
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18 pages, 1876 KiB  
Article
Dietary Energy Sources Affect Cecal and Fecal Microbiota of Healthy Horses
by Laura A. Brandi, Alanne T. Nunes, Camila A. Faleiros, Mirele D. Poleti, Elisângela C. de M. Oliveira, Natalia T. Schmidt, Ricardo L. M. Sousa, Heidge Fukumasu, Julio C. C. Balieiro and Roberta A. Brandi
Animals 2024, 14(23), 3494; https://doi.org/10.3390/ani14233494 - 3 Dec 2024
Viewed by 872
Abstract
Different energy sources are often used in horse diets to enhance health and performance. Understanding how diet impacts the cecal and fecal microbiota is crucial for meeting the nutritional needs of horses. High-throughput sequencing and qPCR were used to compare the fecal and [...] Read more.
Different energy sources are often used in horse diets to enhance health and performance. Understanding how diet impacts the cecal and fecal microbiota is crucial for meeting the nutritional needs of horses. High-throughput sequencing and qPCR were used to compare the fecal and cecal microbiota of five healthy horses receiving three different diets: hay diet (HAY), hay + starch and sugar (SS), and hay + fiber and oil ingredients (FO). Assessment of short-chain fatty acids, pH, and buffer capacity was also performed. The HAY diet was associated with the highest values of fecal pH; the FO and SS diets were associated with higher values of BC6 in the cecum, and the SS diet had higher BC5 values in feces (p < 0.05). HAY was associated with a lower alpha diversity in feces and with a higher abundance of Treponema, Fibrobacter, Lachnospiraceae AC2044, and Prevotellaceae UCG-003 in feces. SS was associated with a higher abundance of Desulfovibrio, the Lachnospiraceae AC2044 group, and Streptococcus in the cecum, and Streptococcus and Prevotellaceae UCG-001 in feces, while FO was associated with higher Prevotella, Prevotellaceae UCG-003, and Akkermansia in the cecum, and the Rikenellaceae RC9 gut group and Ruminococcus in feces. This study indicated that different energy sources can influence cecal and fecal microbiota composition and fecal diversity without significantly affecting fermentation processes under experimental conditions. These findings suggest that the diets studied may not pose immediate health risks; however, further research is needed to generalize these effects on gastrointestinal microbiota in broader equine populations. Full article
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