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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: closed (1 October 2024) | Viewed by 11936

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

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (5 papers)

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Research

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14 pages, 2900 KiB  
Article
Effects of Dietary Medium-Chain Triglyceride Supplementation on the Serum Metabolome of Young Adult and Senior Canines
by Yuanlong Pan, Miriam Sindelar, Ethan Stancliffe, Leah P. Shriver, Rondo P. Middleton and Gary J. Patti
Animals 2024, 14(24), 3577; https://doi.org/10.3390/ani14243577 - 11 Dec 2024
Viewed by 1371
Abstract
In dogs, brain aging may lead to cognitive decline and cognitive dysfunction syndrome (CDS) [...] Full article
(This article belongs to the Special Issue Functional Feed for Pets)
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7 pages, 218 KiB  
Communication
A Diet Supplemented with Oil-Free Olive Pulp Flour (MOP-ManniOlivePowder®) Improves the Oxidative Status of Dogs
by Sara Minieri, Iolanda Altomonte, Virginia Bellini, Lucia Casini and Angelo Gazzano
Animals 2024, 14(17), 2568; https://doi.org/10.3390/ani14172568 - 4 Sep 2024
Viewed by 1276
Abstract
Olive oil coproducts and their phenolic extracts have shown beneficial effects when added to the diets of food-producing animals, whereas data on their effects on pets are scarce. The aim of this study was to evaluate the effects of dietary supplementation with olive [...] Read more.
Olive oil coproducts and their phenolic extracts have shown beneficial effects when added to the diets of food-producing animals, whereas data on their effects on pets are scarce. The aim of this study was to evaluate the effects of dietary supplementation with olive flour (MOP®) on oxidative blood biomarkers in dogs. Thirty dogs were recruited and divided into two groups. Both groups were fed the same kibble feed twice daily. The treatment group (T) also received canned wet feed supplemented with 11.5 mg/kg of body weight of organic olive flour per day, whereas the control group (C) received the same wet feed without any supplementation. The findings showed that oil-free olive pulp flour supplementation led to a significant decrease in d-ROMs (p < 0.044) in the blood of the T group (from 101.26 to 86.67 U CARR), whereas no significant changes were observed in the C group. An increasing OXY trend was found in the blood of the T group. Polyphenols in olive flour at a dose of 11.5 mg/kg of body weight contributed to lowering the oxidative stress threshold in dogs, reducing the levels of d-ROMs in dogs and leading to increasing trends in the amount of blood antioxidants. The use of olive pulp flour in dog diets has proven to be beneficial for their health and could also reduce the waste associated with olive oil production. Full article
(This article belongs to the Special Issue Functional Feed for Pets)
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 3 | Viewed by 1942
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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14 pages, 254 KiB  
Review
Effect of Bovine Colostrum on Canine Immune Health
by Ping Yu and Ebenezer Satyaraj
Animals 2025, 15(2), 185; https://doi.org/10.3390/ani15020185 - 11 Jan 2025
Viewed by 1888
Abstract
Colostrum, the first fluid secreted by the mammary glands of mammalian mothers, contains essential nutrients for the health and survival of newborns. Bovine colostrum (BC) is notable for its high concentrations of bioactive components, such as immunoglobulins and lactoferrin. Despite dogs being the [...] Read more.
Colostrum, the first fluid secreted by the mammary glands of mammalian mothers, contains essential nutrients for the health and survival of newborns. Bovine colostrum (BC) is notable for its high concentrations of bioactive components, such as immunoglobulins and lactoferrin. Despite dogs being the world’s most popular companion animals, there is limited research on their immune systems compared to humans. This summary aims to consolidate published studies that explore the immune benefits of BC, focusing specifically on its implications for dogs. Full article
(This article belongs to the Special Issue Functional Feed for Pets)
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 4225
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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