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Animals
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Functional Feed for Pets
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Functional Feed for Pets

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

Deadline for manuscript submissions: 1 May 2024 | Viewed by 3752

Special Issue Editors

Dr. Yuanlong Pan

E-Mail Website
Guest Editor
Nestle Research Center-St Louis, 1 Checkerboard Square, 2RS, St Louis, MO 63164, USA
Interests: nutrition; brain health; metabolic health; dogs; cats
Dr. Kimberly A. May

E-Mail Website1 Website2
Guest Editor
Purina Institute, Saint Louis, MO, USA
Interests: cognition; cat allergens; microbiome science

Special Issue Information

Dear Colleagues, 

Nutrition has profound impacts on health and longevity in dogs and cats. Many functional nutrients or ingredients have been shown to improve health and help to manage some chronic conditions in dogs and cats. For example, functional ingredients, including omega-3 PUFAs, glucosamine, and chondroitin, have been shown to reduce pain, stiffness, and lameness, as well as improve activity in dogs with osteoarthritis. Medium-chain triglycerides have been shown to improve cognitive functions in senior dogs. This Special Issue, “Functional Feed for Pets”, seeks to publish up-to-date scientific research related to the effects of novel functional ingredients or nutrients on promoting growth and development in kittens and puppies, maintaining health and vitality in adult and senior dogs and cats, and alleviating chronic conditions in adult and senior dogs and cats.

We invite you to participate in this Special Issue and publish research papers, reviews, and case reports.

Dr. Yuanlong Pan
Dr. Kimberly A. May
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Animals is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • functional ingredients
  • health
  • healthy lifespan
  • dogs
  • cats

Published Papers (2 papers)

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Research

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16 pages, 2403 KiB  
Article
Modulation of In Vitro Macrophage Responses via Primary and Secondary Bile Acids in Dogs
by Alison C. Manchester, Lyndah Chow, William Wheat and Steven Dow
Animals 2023, 13(23), 3714; https://doi.org/10.3390/ani13233714 - 30 Nov 2023
Cited by 1 | Viewed by 901
Abstract
Bile acids (BA) are important metabolites secreted into the intestinal lumen and impacted by luminal microbes and dietary intake. Prior studies in humans and rodents have shown that BAs are immunologically active and that primary and secondary BAs have distinct immune properties. Therefore, [...] Read more.
Bile acids (BA) are important metabolites secreted into the intestinal lumen and impacted by luminal microbes and dietary intake. Prior studies in humans and rodents have shown that BAs are immunologically active and that primary and secondary BAs have distinct immune properties. Therefore, the composition of the gut BA pool may influence GI inflammatory responses. The current study investigated the relative immune modulatory properties of primary (cholic acid, CA) and secondary BAs (lithocholic acid, LCA) by assessing their effects on canine macrophage cytokine secretion and BA receptor (TGR5) expression. In addition, RNA sequencing was used to further interrogate how CA and LCA differentially modulated macrophage responses to LPS (lipopolysaccharide). We found that exposure to either CA or LCA influenced LPS-induced cytokine production via macrophages similarly, with suppression of TNF-α secretion and enhancement of IL-10 secretion. Neither BA altered the expression of the BA receptor TGR5. Transcriptomic analysis revealed that CA activated inflammatory signaling pathways in macrophages involving type II interferon signaling and the aryl hydrocarbon receptor, whereas LCA activated pathways related to nitric oxide signaling and cell cycle regulation. Thus, we concluded that both primary and secondary BAs are active modulators of macrophage responses in dogs, with differential and shared effects evident with sequencing analysis. Full article
(This article belongs to the Special Issue Functional Feed for Pets)
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Review

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18 pages, 3193 KiB  
Review
Spray-Dried Animal Plasma as a Multifaceted Ingredient in Pet Food
by Ricardo Souza Vasconcellos, Lucas Ben Fiuza Henríquez and Patrick dos Santos Lourenço
Animals 2023, 13(11), 1773; https://doi.org/10.3390/ani13111773 - 26 May 2023
Cited by 3 | Viewed by 2294
Abstract
Plasma is a co-product from pork and beef obtained during the processing of animals for human consumption. The spray-drying process maintains the solubility of spray-dried animal plasma (SDAP) and its nutritional and functional properties, making this ingredient multifunctional in human and animal nutrition. [...] Read more.
Plasma is a co-product from pork and beef obtained during the processing of animals for human consumption. The spray-drying process maintains the solubility of spray-dried animal plasma (SDAP) and its nutritional and functional properties, making this ingredient multifunctional in human and animal nutrition. In pet food, SDAP has been used in the production of wet foods (pates and chunks in gravy) as an emulsifying and binding agent, with the potential to replace hydrocolloids partially or totally, which have some negative implications for digestibility, fecal quality, and intestinal inflammation. From a nutritional point of view, SDAP has high digestibility and an amino acid profile compatible with high-quality ingredients, such as powdered eggs. Studies in companion animals, especially in cats, have shown that SDAP is an ingredient with high palatability. Despite the immunomodulatory, anti-inflammatory, prebiotic, and neuroprotective properties demonstrated in some animal models, there are still few publications demonstrating these effects in dogs and cats, which limits its use as a functional ingredient for these species. In this review, the potential use of SDAP in pet food, aspects related to the sustainability of this ingredient, and opportunities for studies in companion animals are discussed. Full article
(This article belongs to the Special Issue Functional Feed for Pets)
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