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Haake J, Meyerhoff N, Meller S, Twele F, Charalambous M, Wilke V, Volk H. Investigating Owner Use of Dietary Supplements in Dogs with Canine Cognitive Dysfunction. Animals (Basel) 2023; 13:3056. [PMID: 37835662 PMCID: PMC10571926 DOI: 10.3390/ani13193056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 09/10/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023] Open
Abstract
Canine cognitive dysfunction (CCD) is becoming increasingly recognized in veterinary medicine, as dogs live longer and with CCD being highly prevalent among the elderly dog population. Various studies have shown that diet and dietary supplementation can positively influence the clinical signs of CCD, especially if given at an early stage. The aim of this study was to investigate owner use of dietary supplements (DSs) in dogs with age-related behavioral changes. An observational study based on an online questionnaire for owners of dogs with age-related behavioral changes was performed. Out of a total of 394 owners who completed the survey, after noticing age-related behavioral changes, over half of the dogs received DSs (54%), whereas only 8% reported changing their dog's base diet. The most used DS was fish oil (48%). The use of DSs should be discussed with and monitored by veterinary surgeons since many geriatric patients have multi-morbidities, may have specific nutritional requirements and receive multi-faceted medications.
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Affiliation(s)
- Julia Haake
- Department of Small Animal Medicine and Surgery, University of Veterinary Medicine Hannover, 30559 Hannover, Germany; (J.H.); (N.M.); (S.M.); (F.T.); (M.C.)
| | - Nina Meyerhoff
- Department of Small Animal Medicine and Surgery, University of Veterinary Medicine Hannover, 30559 Hannover, Germany; (J.H.); (N.M.); (S.M.); (F.T.); (M.C.)
| | - Sebastian Meller
- Department of Small Animal Medicine and Surgery, University of Veterinary Medicine Hannover, 30559 Hannover, Germany; (J.H.); (N.M.); (S.M.); (F.T.); (M.C.)
| | - Friederike Twele
- Department of Small Animal Medicine and Surgery, University of Veterinary Medicine Hannover, 30559 Hannover, Germany; (J.H.); (N.M.); (S.M.); (F.T.); (M.C.)
| | - Marios Charalambous
- Department of Small Animal Medicine and Surgery, University of Veterinary Medicine Hannover, 30559 Hannover, Germany; (J.H.); (N.M.); (S.M.); (F.T.); (M.C.)
| | - Volker Wilke
- Institute for Animal Nutrition, University of Veterinary Medicine, Foundation, 30173 Hannover, Germany;
| | - Holger Volk
- Department of Small Animal Medicine and Surgery, University of Veterinary Medicine Hannover, 30559 Hannover, Germany; (J.H.); (N.M.); (S.M.); (F.T.); (M.C.)
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Cho HW, Choi S, Seo K, Kim KH, Jeon JH, Kim CH, Lim S, Jeong S, Chun JL. Gut microbiota profiling in aged dogs after feeding pet food contained Hericium erinaceus. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2022; 64:937-949. [PMID: 36287790 PMCID: PMC9574611 DOI: 10.5187/jast.2022.e66] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 08/11/2022] [Accepted: 08/11/2022] [Indexed: 11/05/2022]
Abstract
Health concern of dogs is the most important issue for pet owners. People who
have companied the dogs long-term provide the utmost cares for their well-being
and healthy life. Recently, it was revealed that the population and types of gut
microbiota affect the metabolism and immunity of the host. However, there is
little information on the gut microbiome of dogs. Hericium
erinaceus (H. erinaceus; HE) is one of the
well-known medicinal mushrooms and has multiple bioactive components including
polyphenol, β-glucan, polysaccharides, ergothioneine, hericerin,
erinacines, etc. Here we tested a pet food that contained H.
erinaceus for improvement in the gut microbiota environment of aged
dogs. A total of 18 dogs, each 11 years old, were utilized. For sixteen weeks,
the dogs were fed with 0.4 g of H. erinaceus (HE-L), or 0.8 g (HE-H), or without
H. erinaceus (CON) per body weight (kg) with daily diets (n
= 6 per group). Taxonomic analysis was performed using metagenomics to
investigate the difference in the gut microbiome. Resulting from principal
coordinates analysis (PCoA) to confirm the distance difference between the
groups, there was a significant difference between HE-H and CON due to weighted
Unique fraction metric (Unifrac) distance (p = 0.047), but HE-L
did not have a statistical difference compared to that of CON. Additionally, the
result of Linear discriminate analysis of effect size (LEfSe) showed that phylum
Bacteroidetes in HE-H and its order Bacteroidales
increased, compared to that of CON, Additionally, phylum
Firmicutes in HE-H, and its genera
(Streptococcus, Tyzzerella) were reduced.
Furthermore, at the family level, Campylobacteraceae and its
genus Campylobacter in HE-H was decreased compared to that of
CON. Summarily, our data demonstrated that the intake of H.
erinaceus can regulate the gut microbial community in aged dogs,
and an adequate supply of HE on pet diets would possibly improve immunity and
anti-obesity on gut-microbiota in dogs.
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Affiliation(s)
- Hyun-Woo Cho
- National Institute of Animal Science, Rural Development
Administration, Wanju 55365, Korea
| | - Soyoung Choi
- National Institute of Animal Science, Rural Development
Administration, Wanju 55365, Korea
| | - Kangmin Seo
- National Institute of Animal Science, Rural Development
Administration, Wanju 55365, Korea
| | - Ki Hyun Kim
- National Institute of Animal Science, Rural Development
Administration, Wanju 55365, Korea
| | - Jung-Hwan Jeon
- National Institute of Animal Science, Rural Development
Administration, Wanju 55365, Korea
| | - Chan Ho Kim
- National Institute of Animal Science, Rural Development
Administration, Wanju 55365, Korea
| | - Sejin Lim
- National Institute of Animal Science, Rural Development
Administration, Wanju 55365, Korea
| | - Sohee Jeong
- National Institute of Animal Science, Rural Development
Administration, Wanju 55365, Korea
| | - Ju Lan Chun
- National Institute of Animal Science, Rural Development
Administration, Wanju 55365, Korea,Corresponding author: Ju Lan Chun,
National Institute of Animal Science, Rural Development Administration, Wanju
55365, Korea. Tel: +82-63-238-7053, E-mail:
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McKenzie BA, Chen F, LaCroix-Fralish ML. The phenotype of aging in the dog: how aging impacts the health and well-being of dogs and their caregivers. J Am Vet Med Assoc 2022; 260:963-970. [DOI: 10.2460/javma.22.02.0088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Aging is the single most important cause of disease, disability, and death in adult dogs. Contrary to the common view of aging as a mysterious and inevitable natural event, it is more usefully understood as a set of complex but comprehensible biological processes that are highly conserved across species. Although the phenotypic expression of these processes is variable, there are consistent patterns both within and between species.
The purpose of this feature is to describe the patterns currently recognized in the physical and behavioral manifestations of aging in the dog and how these impact the health and welfare of companion dogs and their human caregivers. Important gaps in our knowledge of the canine aging phenotype will be identified, and current research efforts to better characterize aging in the dog will be discussed. This will help set the context for future efforts to develop clinical assessments and treatments to mitigate the negative impact of aging on dogs and humans.
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Affiliation(s)
| | - Frances Chen
- Cellular Longevity Inc dba Loyal, San Francisco, CA
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Vendramini THA, Gomes Olivindo RF, Zafalon RVA, Rentas MF, Zanini LD, Amaral AR, Pedrinelli V, de Oliveira VV, Risolia LW, Teixeira FA, Brunetto MA. Profile qualitative variables on the dynamics of weight loss programs in dogs. PLoS One 2022; 17:e0261946. [PMID: 35020762 PMCID: PMC8754318 DOI: 10.1371/journal.pone.0261946] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 12/14/2021] [Indexed: 11/18/2022] Open
Abstract
Obesity is the most common nutritional disorder in dogs and it is associated with many comorbidities. Some obesity risk factors have already been established, however, the evaluation of the effect of different individual variables on weight loss induced by calorie restriction, although very important, is still poorly explored. The weight loss protocol can be updated and improved by more precise and adjusted equations throughout the weight loss program in the clinical routine practice. Therefore, the objective of this study was to analyze weight loss program dynamics in groups according to reproductive status, age, body size, and breed, as well as to define more accurately the amount of calories per target metabolic weight throughout the program. Data of 1,053 cases, presented between 2012 and 2019 at the Veterinary Hospital of the School of Veterinary Medicine and Animal Science of the University of São Paulo (FMVZ-USP) were retrospectively analyzed. A total of 77 obese dogs (body condition scores 8/9 or 9/9) of different ages, breeds, sizes, and reproductive status were selected. These dogs did not have any concomitant illnesses and successfully completed the weight loss program. Statistical analysis was performed and values of p≤0.05 were considered significant. The proposed weight loss program was based on an energy restriction protocol where daily energy intake (in kcal) was estimated as 70 kcal × target weight0.75. The target weight (TW) was defined as 80% of the animal's current weight. The average calorie intake for weight loss (calories x target weight0.75) was lower for spayed females (62.36), differing from intact males (66.14) and neutered males (65.41), while intact females (63.66) showed intermediate values without differing between groups (p = 0.015). There were no differences between weight loss calories according to age (p = 0.473) or body size (p = 0.084), allowing the use of the same mathematical equation for intact and neutered dogs; for dogs older than 1 year and of different body sizes. Regarding the breed, the average calorie intake was lower (p = 0.002) in mixed breed dogs (61.54xTW0.75) when compared to obesity-prone purebred dogs (64.17xTW0.75) and other purebreds (65.27xTW0.75). It was concluded that spayed females and mixed breed dogs have greater difficulty in losing weight, that is, they need fewer calories per metabolic body weight for the weight loss program to succeed. A more accurate equation for energy requirement for weight loss can improve chances of success, therefore improving compliance and helping clinical management of obesity in dogs.
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Affiliation(s)
- Thiago Henrique Annibale Vendramini
- Pet Nutrology Research Center, Nutrition and Production Department, School of Veterinary Medicine and Animal Science, University of São Paulo (USP), Pirassununga, Brazil
| | - Rodrigo Fernando Gomes Olivindo
- Veterinary Nutrology Service, Veterinary Teaching Hospital, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Sao Paulo, Brazil
| | - Rafael Vessecchi Amorim Zafalon
- Pet Nutrology Research Center, Nutrition and Production Department, School of Veterinary Medicine and Animal Science, University of São Paulo (USP), Pirassununga, Brazil
| | - Mariana Fragoso Rentas
- Pet Nutrology Research Center, Nutrition and Production Department, School of Veterinary Medicine and Animal Science, University of São Paulo (USP), Pirassununga, Brazil
| | - Lucca Denuci Zanini
- Pet Nutrology Research Center, Nutrition and Production Department, School of Veterinary Medicine and Animal Science, University of São Paulo (USP), Pirassununga, Brazil
| | - Andressa Rodrigues Amaral
- Veterinary Nutrology Service, Veterinary Teaching Hospital, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Sao Paulo, Brazil
| | - Vivian Pedrinelli
- Veterinary Nutrology Service, Veterinary Teaching Hospital, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Sao Paulo, Brazil
| | - Vinicius Vasques de Oliveira
- Veterinary Nutrology Service, Veterinary Teaching Hospital, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Sao Paulo, Brazil
| | - Larissa Wünsche Risolia
- Pet Nutrology Research Center, Nutrition and Production Department, School of Veterinary Medicine and Animal Science, University of São Paulo (USP), Pirassununga, Brazil
| | - Fabio Alves Teixeira
- Veterinary Nutrology Service, Veterinary Teaching Hospital, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Sao Paulo, Brazil
| | - Márcio Antonio Brunetto
- Pet Nutrology Research Center, Nutrition and Production Department, School of Veterinary Medicine and Animal Science, University of São Paulo (USP), Pirassununga, Brazil
- Veterinary Nutrology Service, Veterinary Teaching Hospital, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Sao Paulo, Brazil
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Abstract
Senior dogs and cats commonly present to veterinary clinics for wellness examinations and for illness. Nutritional needs change in healthy elder pets compared with the young adult life stage. Veterinary health care teams must provide nutritional assessments and individual recommendations, recognizing there is no defined nutrient profile for seniors. Individual variation prevents a one-size-fits-all approach. Advancing age places pets at risk for developing medical conditions. Early detection can lead to earlier nutritional intervention to support recovery, health, and quality of life. However, comorbidities may present a nutritional conundrum, requiring prioritization of problems and nutritional triage to balance needs.
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Lorke M, Willen M, Lucas K, Schille JT, Lüder Ripoli F, Willenbrock S, Beyerbach M, Wefstaedt P, Murua Escobar H, Nolte I. Effect of antioxidants, mitochondrial cofactors and omega-3 fatty acids on telomere length and kinematic joint mobility in young and old shepherd dogs - A randomized, blinded and placebo-controlled study. Res Vet Sci 2020; 129:137-153. [PMID: 32000015 DOI: 10.1016/j.rvsc.2020.01.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Revised: 11/23/2019] [Accepted: 01/08/2020] [Indexed: 12/18/2022]
Abstract
In dogs, decreasing telomere length is a biomarker for cellular aging. On a systemic level, aging affects the locomotor system in particular, leading to restricted joint mobility. As aging is thought to be related to oxidative stress, it may be counteracted by a diet enriched with antioxidants, mitochondrial cofactors and omega-3 fatty acids. This randomized, blinded and placebo-controlled study examined the influence of an accordingly enriched diet compared to a control diet on 36 young and 38 old shepherd dogs. At the outset, after 3 and after 6 months, mean and minimum telomere lengths were measured. Furthermore, minimum and maximum joint angles and range of motion of the shoulder, elbow, carpal, hip, stifle and tarsal joints were measured by computer-assisted gait analysis. A positive influence of the enriched diet on old dogs could be verified for minimum telomere length and all three parameters of the shoulder joint on the side with the higher vertical ground reaction force after 6 months. In the other joints there were less significant differences; in some cases they indicated a contrary influence of the enriched diet on young dogs, probably due to its reduced protein content. The greater effect of the enriched diet on minimum than on mean telomere length may be due to the higher preference of telomerase for short telomeres. The greater effect on shoulder joint mobility is explained by the greater influence of musculature and connective tissue in this joint. For elderly dogs it is advisable to feed these nutritional supplements.
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Affiliation(s)
- Malin Lorke
- Small Animal Clinic, University of Veterinary Medicine Hannover, Foundation, D-30559 Hannover, Germany
| | - Maray Willen
- Small Animal Clinic, University of Veterinary Medicine Hannover, Foundation, D-30559 Hannover, Germany
| | - Karin Lucas
- Small Animal Clinic, University of Veterinary Medicine Hannover, Foundation, D-30559 Hannover, Germany
| | - Jan Torben Schille
- Small Animal Clinic, University of Veterinary Medicine Hannover, Foundation, D-30559 Hannover, Germany
| | - Florenza Lüder Ripoli
- Small Animal Clinic, University of Veterinary Medicine Hannover, Foundation, D-30559 Hannover, Germany; Division of Medicine Clinic III, Hematology, Oncology and Palliative Medicine, University of Rostock, D-18057 Rostock, Germany
| | - Saskia Willenbrock
- Small Animal Clinic, University of Veterinary Medicine Hannover, Foundation, D-30559 Hannover, Germany
| | - Martin Beyerbach
- Institute for Biometry, Epidemiology and Information Processing, University of Veterinary Medicine Hannover, Foundation, D-30559 Hannover, Germany
| | - Patrick Wefstaedt
- Small Animal Clinic, University of Veterinary Medicine Hannover, Foundation, D-30559 Hannover, Germany
| | - Hugo Murua Escobar
- Small Animal Clinic, University of Veterinary Medicine Hannover, Foundation, D-30559 Hannover, Germany; Division of Medicine Clinic III, Hematology, Oncology and Palliative Medicine, University of Rostock, D-18057 Rostock, Germany
| | - Ingo Nolte
- Small Animal Clinic, University of Veterinary Medicine Hannover, Foundation, D-30559 Hannover, Germany.
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Kroll FSA, Putarov TC, Zaine L, Venturini KS, Aoki CG, Santos JPF, Pedrinelli V, Vendramini THA, Brunetto MA, Carciofi AC. Active fractions of mannoproteins derived from yeast cell wall stimulate innate and acquired immunity of adult and elderly dogs. Anim Feed Sci Technol 2020; 261:114392. [PMID: 32288071 PMCID: PMC7126846 DOI: 10.1016/j.anifeedsci.2020.114392] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 01/03/2020] [Accepted: 01/04/2020] [Indexed: 01/15/2023]
Abstract
Aging can promote changes in the immune system in dogs. Nutritional intervention in older dogs aims to increase lifespan. The yeast cell wall comprises β-(1,3)-D-glucan, β-(1,6)-D-glucan and mannoproteins. Elderly dogs when compared to adult dogs had lower absolute T and B lymphocyte counts. Mannoproteins stimulated acquired and innate immune responses in adult and elderly dogs.
Nutritional intervention in older dogs aims to increase lifespan and improve life quality as well as delay the development of diseases related to ageing. It is believed that active fractions of mannoproteins (AFMs) obtained through extraction and fractionation of yeast cell walls (Saccharomyces cerevisiae) may beneficially modulate the immune system. However, studies that have evaluated this component and the effects of ageing on the immune system of dogs are scarce. This study aimed to evaluate the immunological effects of AFMs in adult and elderly dogs. Three extruded iso-nutrient experimental diets were formulated: without addition of AFM (T0); with AFM at 400 mg/kg (T400); and with AFM at 800 mg/kg (T800). Thirty-six beagle dogs were used, and six experimental treatments, resulting in combinations of age (adult and elderly) and diet (T0, T400, and T800), were evaluated. On days zero, 14, and 28, blood samples were obtained for leucocyte phenotyping and phagocytosis assays. On days zero and 28, a lymphoproliferation test, quantification of reactive oxygen (H2O2) and nitrogen (NO) intermediate production, evaluation of faecal immunoglobulin A (IgA) content, and a delayed cutaneous hypersensitivity test (DCHT) were performed. Statistical analyses were performed with SAS software. Repeated measure variance analyses were performed, and means were compared by the Tukey test. Values of P ≤ 0.05 were considered significant, and values of P ≤ 0.10 were considered tendencies. Dogs fed T400 tended to have higher neutrophilic phagocytic activity than dogs fed T800 (P = 0.073). Regarding reactive oxygen intermediates, bacterial lipopolysaccharide (LPS)-stimulated neutrophils from animals that were fed T400 had a tendency to produce more H2O2 than those from animals fed the control diet (P = 0.093). Elderly dogs, when compared to adult dogs, had lower absolute T and B lymphocyte counts, lower auxiliary T lymphocyte counts, and higher cytotoxic T lymphocyte counts (P < 0.05). A significant effect of diet, age, and time with saline inoculation was noted for the DCHT. There was no effect of diet or age on faecal IgA content in dogs. This study suggests beneficial effects of mannoproteins on the specific and nonspecific immune responses in adult and elderly dogs.
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Key Words
- AFM, active fraction of mannoproteins
- ALP, alkaline phosphatase
- ALT, alanine aminotransferase
- Ageing
- CBC, complete blood count
- CD21+, B lymphocyte
- CD4+, auxiliary T lymphocyte
- CD5+, total T lymphocyte
- CD8+, cytotoxic lymphocyte
- CO, cells only
- Canine
- DCHT, delayed cutaneous hypersensitivity test
- FOSs, fructooligosaccharides
- GALT, gut-associated lymphoid tissue
- IL-12, interleukin 12
- IgA, immunoglobulin A
- Immunosenescence
- LPS, bacterial lipopolysaccharide
- MOSs, mannanoligosaccharides
- NADPH, reduced nicotinamide adenine dinucleotide phosphate
- NO, nitrogen monoxide
- NOS, nitric oxide synthase
- OD, optical density
- PMA, phorbol myristate acetate
- Saccharomyces cerevisiae
- Senescence
- TNF-α, tumour necrosis factor alpha
- Th1, helper T lymphocyte
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Affiliation(s)
- F S A Kroll
- Department of Veterinary Clinic and Surgery, Sao Paulo State University, Jaboticabal, Brazil
| | - T C Putarov
- Department of Veterinary Clinic and Surgery, Sao Paulo State University, Jaboticabal, Brazil
| | - L Zaine
- Department of Veterinary Clinic and Surgery, Sao Paulo State University, Jaboticabal, Brazil
| | - K S Venturini
- Department of Veterinary Clinic and Surgery, Sao Paulo State University, Jaboticabal, Brazil
| | - C G Aoki
- Department of Veterinary Clinic and Surgery, Sao Paulo State University, Jaboticabal, Brazil
| | - J P F Santos
- Department of Animal Nutrition and Production, University of Sao Paulo, Pirassununga, Brazil
| | - V Pedrinelli
- Department of Veterinary Clinic, University of Sao Paulo, São Paulo, Brazil
| | - T H A Vendramini
- Department of Animal Nutrition and Production, University of Sao Paulo, Pirassununga, Brazil
| | - M A Brunetto
- Department of Animal Nutrition and Production, University of Sao Paulo, Pirassununga, Brazil
| | - A C Carciofi
- Department of Veterinary Clinic and Surgery, Sao Paulo State University, Jaboticabal, Brazil
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Creevy KE, Grady J, Little SE, Moore GE, Strickler BG, Thompson S, Webb JA. 2019 AAHA Canine Life Stage Guidelines*. J Am Anim Hosp Assoc 2019; 55:267-290. [DOI: 10.5326/jaaha-ms-6999] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
ABSTRACT
The guidelines are an update and extension of the AAHA Canine Life Stage Guidelines published in 2012. A noteworthy change from the earlier guidelines is the division of the dog’s lifespan into five stages (puppy, young adult, mature adult, senior, and end of life) instead of the previous six. This simplified grouping is consistent with how pet owners generally perceive their dog’s maturation and aging process and provides a readily understood basis for an evolving, lifelong healthcare strategy. The guidelines provide the following recommendations for managing 10 health-related factors at each of the first four canine life stages: lifestyle effect on the patient’s safety, zoonotic and human safety risk, behavior, nutrition, parasite control, vaccination, dental health, reproduction, breed-specific conditions, and a baseline diagnostic profile.
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Affiliation(s)
- Kate E. Creevy
- From the Department of Small Animal Clinical Sciences, Texas A&M University College of Veterinary Medicine & Biomedical Sciences, College Station, Texas (K.E.C.); Department of Clinical Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi (J.G.); Oklahoma State University, Department of Veterinary Pathobiology, Stillwater, Oklahoma (S.E.L.); Depar
| | - Jesse Grady
- From the Department of Small Animal Clinical Sciences, Texas A&M University College of Veterinary Medicine & Biomedical Sciences, College Station, Texas (K.E.C.); Department of Clinical Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi (J.G.); Oklahoma State University, Department of Veterinary Pathobiology, Stillwater, Oklahoma (S.E.L.); Depar
| | - Susan E. Little
- From the Department of Small Animal Clinical Sciences, Texas A&M University College of Veterinary Medicine & Biomedical Sciences, College Station, Texas (K.E.C.); Department of Clinical Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi (J.G.); Oklahoma State University, Department of Veterinary Pathobiology, Stillwater, Oklahoma (S.E.L.); Depar
| | - George E. Moore
- From the Department of Small Animal Clinical Sciences, Texas A&M University College of Veterinary Medicine & Biomedical Sciences, College Station, Texas (K.E.C.); Department of Clinical Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi (J.G.); Oklahoma State University, Department of Veterinary Pathobiology, Stillwater, Oklahoma (S.E.L.); Depar
| | - Beth Groetzinger Strickler
- From the Department of Small Animal Clinical Sciences, Texas A&M University College of Veterinary Medicine & Biomedical Sciences, College Station, Texas (K.E.C.); Department of Clinical Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi (J.G.); Oklahoma State University, Department of Veterinary Pathobiology, Stillwater, Oklahoma (S.E.L.); Depar
| | - Steve Thompson
- From the Department of Small Animal Clinical Sciences, Texas A&M University College of Veterinary Medicine & Biomedical Sciences, College Station, Texas (K.E.C.); Department of Clinical Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi (J.G.); Oklahoma State University, Department of Veterinary Pathobiology, Stillwater, Oklahoma (S.E.L.); Depar
| | - Jinelle A. Webb
- From the Department of Small Animal Clinical Sciences, Texas A&M University College of Veterinary Medicine & Biomedical Sciences, College Station, Texas (K.E.C.); Department of Clinical Sciences, College of Veterinary Medicine, Mississippi State University, Mississippi State, Mississippi (J.G.); Oklahoma State University, Department of Veterinary Pathobiology, Stillwater, Oklahoma (S.E.L.); Depar
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9
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Wallis LJ, Szabó D, Erdélyi-Belle B, Kubinyi E. Demographic Change Across the Lifespan of Pet Dogs and Their Impact on Health Status. Front Vet Sci 2018; 5:200. [PMID: 30191153 PMCID: PMC6115627 DOI: 10.3389/fvets.2018.00200] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 07/30/2018] [Indexed: 01/06/2023] Open
Abstract
Although dogs' life expectancies are six to twelve times shorter than that of humans, the demographics (e. g., living conditions) of dogs can still change considerably with aging, similarly to humans. Despite the fact that the dog is a particularly good model for human healthspan, and the number of aged dogs in the population is growing in parallel with aged humans, there has been few previous attempts to describe demographic changes statistically. We utilized an on-line questionnaire to examine the link between the age and health of the dog, and owner and dog demographics in a cross-sectional Hungarian sample. Results from univariate analyses revealed that 20 of the 27 demographic variables measured differed significantly between six dog age groups. Our results revealed that pure breed dogs suffered from health problems at a younger age, and may die at an earlier age than mixed breeds. The oldest dog group (>12 years) consisted of fewer pure breeds than mixed breeds and the mixed breeds sample was on average older than the pure breed sample. Old dogs were classified more frequently as unhealthy, less often had a “normal” body condition score, and more often received medication and supplements. They were also more often male, neutered, suffered health problems (such as sensory, joint, and/or tooth problems), received less activity/interaction/training with the owner, and were more likely to have experienced one or more traumatic events. Surprisingly, the youngest age group contained more pure breeds, were more often fed raw meat, and had owners aged under 29 years, reflecting new trends among younger owners. The high prevalence of dogs that had experienced one or more traumatic events in their lifetime (over 40% of the sample), indicates that welfare and health could be improved by informing owners of the greatest risk factors of trauma, and providing interventions to reduce their impact. Experiencing multiple life events such as spending time in a shelter, changing owners, traumatic injury/prolonged disease/surgery, getting lost, and changes in family structure increased the likelihood that owners reported that their dogs currently show behavioral signs that they attribute to the previous trauma.
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Affiliation(s)
- Lisa J Wallis
- Department of Ethology, Eötvös Loránd University, Budapest, Hungary
| | - Dóra Szabó
- Department of Ethology, Eötvös Loránd University, Budapest, Hungary
| | | | - Enikö Kubinyi
- Department of Ethology, Eötvös Loránd University, Budapest, Hungary
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Wallis LJ, Range F, Kubinyi E, Chapagain D, Serra J, Huber L. Utilising dog-computer interactions to provide mental stimulation in dogs especially during ageing. ACI2017, IMPROVING RELATIONS : FOURTH INTERNATIONAL CONFERENCE ON ANIMAL-COMPUTER INTERACTION : PROCEEDINGS : 21-23 NOVEMBER 2017, MILTON KEYNES, UNITED KINGDOM. INTERNATIONAL CONFERENCE ON ANIMAL-COMPUTER INTERACTION (4TH : 2017 : MILT... 2017; 2017. [PMID: 30283918 DOI: 10.1145/3152130.3152146] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Aged dogs suffer from reduced mobility and activity levels, which can affect their daily lives. It is quite typical for owners of older dogs to reduce all activities such as walking, playing and training, since their dog may appear to no longer need them. Previous studies have shown that ageing can be slowed by mental and physical stimulation, and thus stopping these activities might actually lead to faster ageing in dogs, which can result in a reduction in the quality of life of the animal, and may even decrease the strength of the dog-owner bond. In this paper, we describe in detail a touchscreen apparatus, software and training method that we have used to facilitate dog computer interaction (DCI). We propose that DCI has the potential to improve the welfare of older dogs in particular through cognitive enrichment. We provide hypotheses for future studies to examine the possible effects of touchscreen use on physiological, behavioural and cognitive measures of dogs' positive affect and well-being, and any impact on the dog-owner bond. In the future, collaborations between researchers in animal-computer interaction, dog trainers, and cognitive scientists are essential to develop the hardware and software necessary to realise the full potential of this training and enrichment tool.
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Affiliation(s)
- Lisa J Wallis
- Clever Dog Lab, Messerli Research Institution, University of Veterinary Medicine Vienna, Medical University of Vienna, University of Vienna, Veterinärplatz 1, 1210 Vienna, Austria.,Senior Family Dog Project, Department of Ethology, Eötvös Loránd University, Budapest, Hungary
| | - Friederike Range
- Clever Dog Lab, Messerli Research Institution, University of Veterinary Medicine Vienna, Medical University of Vienna, University of Vienna, Veterinärplatz 1, 1210 Vienna, Austria.,Wolf Science Center, Messerli Research Institute, Vienna, Austria
| | - Enikő Kubinyi
- Senior Family Dog Project, Department of Ethology, Eötvös Loránd University, Budapest, Hungary
| | - Durga Chapagain
- Clever Dog Lab, Messerli Research Institution, University of Veterinary Medicine Vienna, Medical University of Vienna, University of Vienna, Veterinärplatz 1, 1210 Vienna, Austria
| | | | - Ludwig Huber
- Clever Dog Lab, Messerli Research Institution, University of Veterinary Medicine Vienna, Medical University of Vienna, University of Vienna, Veterinärplatz 1, 1210 Vienna, Austria
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Chapagain D, Range F, Huber L, Virányi Z. Cognitive Aging in Dogs. Gerontology 2017; 64:165-171. [PMID: 29065419 PMCID: PMC5841136 DOI: 10.1159/000481621] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 09/19/2017] [Indexed: 01/12/2023] Open
Abstract
A decline in the physical or mental health of older dogs can be a challenge for the owners, whose relationship with their dog is compromised by the cognitive and behavioral changes in their dogs. Although dog owners tend to consider many physiological and behavioral changes in old dogs as part of the normal aging process, it is important to differentiate between normal aging and pathologic aging, since behavioral changes may be the first indication of declining health and welfare in old dogs. Most reviews on cognitive aging in dogs have focused on translational approaches to human Alzheimer's disease; from a practical perspective, however, understanding normal cognitive aging in pet dogs and screening cognitively affected dogs are important in their own right. Here we review the literature on different cognitive functions that decline during aging, signs of cognitive dysfunction, screening methods, and preventive measures for age-related cognitive decline. Moreover, we discuss the drawbacks of using questionnaires as subjective measures of aging and propose the development of objective methods to distinguish normal cognitive aging from severe cognitive dysfunction. We suggest that multi-targeted approaches that combine owner-evaluated questionnaires with neuropsychological tests can be most effective in screening cognitively affected dogs from normally aging dogs. Regarding preventive measures, we conclude that combinations of dietary intervention and behavioral enrichment may be more beneficial than single-pathway manipulations in delaying cognitive aging or retaining various cognitive functions during aging.
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Affiliation(s)
- Durga Chapagain
- Clever Dog Lab, Comparative Cognition, Messerli Research Institute, University of Veterinary Medicine, Vienna, Medical University of Vienna, University of Vienna, Vienna, Austria
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Peixoto MC, Ribeiro ÉM, Maria APJ, Loureiro BA, di Santo LG, Putarov TC, Yoshitoshi FN, Pereira GT, Sá LRM, Carciofi AC. Effect of resistant starch on the intestinal health of old dogs: fermentation products and histological features of the intestinal mucosa. J Anim Physiol Anim Nutr (Berl) 2017; 102:e111-e121. [PMID: 28444804 DOI: 10.1111/jpn.12711] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2016] [Accepted: 02/08/2017] [Indexed: 01/06/2023]
Abstract
The effects of resistant starch (RS) intake on nutrient digestibility, microbial fermentation products, faecal IgA, faecal pH, and histological features of the intestinal mucosa of old dogs were evaluated. The same formulation was extruded in two different conditions: one to obtain elevated starch cooking degree with low RS content (0.21%) and the other lower starch cooking with high RS content (1.46%). Eight geriatric Beagles (11.5 ± 0.38 years old) were fed each diet for 61 days in a crossover design. Food intake, nutrient digestibility, fermentation products, faecal pH, and faecal IgA were examined via variance analysis. Histological results of intestinal biopsies were assessed via Wilcoxon test for paired data. The morphometric characteristics of large intestine crypts were evaluated via paired t tests (p < .05). Protein, fat, and energy digestibilities were higher for the low-RS diet (p < .05). Dogs receiving the high-RS diet had lower faecal pH and higher values for propionate, butyrate, total volatile fatty acids, and lactate (p < .05). No differences between diets were found in the histological parameters of the gut mucosa, and only a tendency for deeper crypts in the descending colon was observed for dogs fed the high-RS diet (p = .083). The intake of a corn-based kibble diet manufactured with coarse ground raw material and low starch gelatinization to obtain 1.4% of RS affected microbial fermentation products and faecal pH and tended to increase crypt depth in the descending colon of old dogs.
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Affiliation(s)
- M C Peixoto
- Faculdade de Ciências Agrárias e Veterinárias, UNESP-Univ Estadual Paulista, Jaboticabal, SP, Brazil
| | - É M Ribeiro
- Faculdade de Ciências Agrárias e Veterinárias, UNESP-Univ Estadual Paulista, Jaboticabal, SP, Brazil
| | - A P J Maria
- Faculdade de Ciências Agrárias e Veterinárias, UNESP-Univ Estadual Paulista, Jaboticabal, SP, Brazil
| | - B A Loureiro
- Faculdade de Ciências Agrárias e Veterinárias, UNESP-Univ Estadual Paulista, Jaboticabal, SP, Brazil
| | - L G di Santo
- Faculdade de Ciências Agrárias e Veterinárias, UNESP-Univ Estadual Paulista, Jaboticabal, SP, Brazil
| | - T C Putarov
- Faculdade de Ciências Agrárias e Veterinárias, UNESP-Univ Estadual Paulista, Jaboticabal, SP, Brazil
| | - F N Yoshitoshi
- Veterinary, ENDOSCOPET-Serviço de Endoscopia e Cirurgia Veterinária, São Paulo, SP, Brazil
| | - G T Pereira
- Faculdade de Ciências Agrárias e Veterinárias, UNESP-Univ Estadual Paulista, Jaboticabal, SP, Brazil
| | - L R M Sá
- Faculdade de Medicina Veterinária e Zootecnia, University of São Paulo (USP), São Paulo, SP, Brazil
| | - A C Carciofi
- Faculdade de Ciências Agrárias e Veterinárias, UNESP-Univ Estadual Paulista, Jaboticabal, SP, Brazil
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MacMartin C, Wheat HC, Coe JB, Adams CL. Effect of question design on dietary information solicited during veterinarian-client interactions in companion animal practice in Ontario, Canada. J Am Vet Med Assoc 2016; 246:1203-14. [PMID: 25970217 DOI: 10.2460/javma.246.11.1203] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To establish the types of initial questions used by veterinarians in companion animal practice to solicit nutritional history information from owners of dogs and cats, the dietary information elicited, and the relationship between initial question-answer sequences and later nutrition-related questions. DESIGN Cross-sectional qualitative conversation analytic study. SAMPLE 98 appointments featuring 15 veterinarians drawn from an observational study of 284 videotaped veterinarian-client-patient visits involving 17 veterinarians in companion animal practices in eastern Ontario, Canada. PROCEDURES Veterinarian and client talk related to patient nutrition was identified and transcribed; conversation analysis was then used to examine the orderly design and details of talk within and across turns. Nutrition-related discussions occurred in 172 visits, 98 of which contained veterinarian-initiated question-answer sequences about patient nutritional history (99 sequences in total, with 2 sequences in 1 visit). RESULTS The predominant question format used by veterinarians was a what-prefaced question asking about the current content of the patient's diet (75/99). Overall, 63 appointments involved a single what-prefaced question in the first turn of nutrition talk by the veterinarian (64 sequences in total). Dietary information in client responses was typically restricted to the brand name, the subtype (eg, kitten), or the brand name and subtype of a single food item. When additional diet questions were subsequently posed, they typically sought only clarification about the food item previously mentioned by the client. CONCLUSIONS AND CLINICAL RELEVANCE Results suggested that question design can influence the accuracy and completeness of a nutritional history. These findings can potentially provide important evidence-based guidance for communication training in nutritional assessment techniques.
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Affiliation(s)
- Clare MacMartin
- Department of Family Relations and Applied Nutrition, College of Social and Applied Human Sciences, University of Guelph, Guelph, ON N1H 2W1, Canada
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