1
|
Vendramini THA, Macedo HT, Amaral AR, Zafalon RVA, Carmo AAD, Cesar CGL, Marchi PH, Balieiro JCDC, Brunetto MA. What Is the Cost of Weight Loss? An Approach to Commercial (Dry and Wet) and Homemade Diets. Animals (Basel) 2024; 14:679. [PMID: 38473064 DOI: 10.3390/ani14050679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/24/2024] [Accepted: 02/03/2024] [Indexed: 03/14/2024] Open
Abstract
In the context of the rising prevalence of obesity among pets, this study aimed to assess the economic aspects of weight reduction protocols for dogs and cats, considering the lack of information and the varying costs of commercial and homemade diets. The results indicated an average weekly weight loss rate of 1.02% for dogs and 0.92% for cats, with a reduction in body fat mass (p < 0.005). The cost analysis included an evaluation of both dry and wet commercial prescription diets as well as homemade diets. The results unveiled higher expenses associated to wet commercial diets, followed by homemade and dry commercial diets (p < 0.001). The study demonstrated that despite the initial investment, the long-term benefits of weight loss, including improved health and reduced financial burdens for owners, justify the expenses incurred. This comprehensive analysis provides veterinarians and pet owners with valuable insights into the economic considerations of weight reduction protocols, facilitating informed decision making and promoting pet well-being.
Collapse
Affiliation(s)
- Thiago Henrique Annibale Vendramini
- Pet Nutrology Research Center (CEPEN Pet), Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga 13635-900, Brazil
- Veterinary Nutrology Service, Veterinary Teaching Hospital, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Sao Paulo 05508-270, Brazil
| | - Henrique Tobaro Macedo
- Pet Nutrology Research Center (CEPEN Pet), Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga 13635-900, Brazil
| | - Andressa Rodrigues Amaral
- Veterinary Nutrology Service, Veterinary Teaching Hospital, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Sao Paulo 05508-270, Brazil
| | - Rafael Vessecchi Amorim Zafalon
- Pet Nutrology Research Center (CEPEN Pet), Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga 13635-900, Brazil
| | - Adrielly Aparecida do Carmo
- Pet Nutrology Research Center (CEPEN Pet), Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga 13635-900, Brazil
| | - Cinthia Gonçalves Lenz Cesar
- Pet Nutrology Research Center (CEPEN Pet), Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga 13635-900, Brazil
| | - Pedro Henrique Marchi
- Pet Nutrology Research Center (CEPEN Pet), Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga 13635-900, Brazil
| | - Júlio Cesar de Carvalho Balieiro
- Pet Nutrology Research Center (CEPEN Pet), Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga 13635-900, Brazil
- Veterinary Nutrology Service, Veterinary Teaching Hospital, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Sao Paulo 05508-270, Brazil
| | - Marcio Antonio Brunetto
- Pet Nutrology Research Center (CEPEN Pet), Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga 13635-900, Brazil
| |
Collapse
|
2
|
Marchi PH, Vendramini THA, Zafalon RVA, Príncipe LDA, Cesar CGL, Perini MP, Putarov TC, Gomes COMS, Balieiro JCDC, Brunetto MA. Effects of Increasing Levels of Purified Beta-1,3/1,6-Glucans on the Fecal Microbiome, Digestibility, and Immunity Variables of Healthy Adult Dogs. Microorganisms 2024; 12:113. [PMID: 38257940 PMCID: PMC10818568 DOI: 10.3390/microorganisms12010113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/11/2023] [Accepted: 12/12/2023] [Indexed: 01/24/2024] Open
Abstract
Yeast-purified beta-1,3/1,6-glucans (BG) can modulate dogs' immune systems and microbiome, but the optimal inclusion dose remains unknown. The aim of the study was to evaluate the effects of 0.0, 0.07, 0.14, and 0.28% inclusion of BG in a dry extruded diet on the digestibility, immunity, and fecal microbiota of healthy adult dogs. Eight male and female border collies [n = 4; body condition score (BCS) = 5] and English cocker spaniels (n = 4; BCS = 5), aged 3.5 ± 0.5 years, were randomly distributed into two 4 × 4 balanced Latin squares. Fecal microbiota (using 16S rRNA sequencing, Illumina®), apparent digestibility coefficients (ADC) of nutrients, fecal concentrations of short-chain fatty acids (SCFA) and branched-chain fatty acids (BCFA), ammoniacal nitrogen, lactic acid, IgA and pH, lymphocyte immunophenotyping, intensity and percentage of phagocytosis and oxidative burst were determined. No differences were observed in Faith (p = 0.1414) and Pielou-evenness (p = 0.1151) between treatments, but beta diversity was different between 0.0% and 0.14% BG groups (p = 0.047). Moreover, the Firmicutes phylum was the most abundant in all groups and exhibited the highest relative abundance after the consumption of 0.14% BG, a finding considered beneficial for the canine microbiome. The Erysipelotrichaceae and Ruminococcaceae families, along with the Faecalibacterium and Prevotella genera, considered favorable for their involvement in butyrate production and other metabolites, showed increased abundance after the consumption of 0.14% BG. The potentially pathogenic Proteobacteria phylum displayed lower abundance after the consumption of 0.14% BG. Fecal concentrations of the evaluated compounds and pH did not differ after consumption of the BG at all percentages. Higher crude protein ADC was found after 0.14 and 0.28% BG consumption (p < 0.0001), but no differences were found for other nutrients. Phagocytosis, oxidative burst, and lymphocyte populations were not modulated by any of the treatments; however, 0.14% BG modulated the lymphocyte T CD4+:CD8+ ratio (p = 0.0368), an important marker of immune system efficiency. The inclusion of 0.14% BG resulted in the best responses and was the best dose evaluated.
Collapse
Affiliation(s)
- Pedro Henrique Marchi
- Pet Nutrology Research Center, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Pirassununga 13635-000, Brazil; (P.H.M.); (R.V.A.Z.); (L.d.A.P.); (C.G.L.C.); (M.P.P.); (J.C.d.C.B.)
| | - Thiago Henrique Annibale Vendramini
- Pet Nutrology Research Center, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Pirassununga 13635-000, Brazil; (P.H.M.); (R.V.A.Z.); (L.d.A.P.); (C.G.L.C.); (M.P.P.); (J.C.d.C.B.)
| | - Rafael Vessecchi Amorim Zafalon
- Pet Nutrology Research Center, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Pirassununga 13635-000, Brazil; (P.H.M.); (R.V.A.Z.); (L.d.A.P.); (C.G.L.C.); (M.P.P.); (J.C.d.C.B.)
| | - Leonardo de Andrade Príncipe
- Pet Nutrology Research Center, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Pirassununga 13635-000, Brazil; (P.H.M.); (R.V.A.Z.); (L.d.A.P.); (C.G.L.C.); (M.P.P.); (J.C.d.C.B.)
| | - Cinthia Gonçalves Lenz Cesar
- Pet Nutrology Research Center, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Pirassununga 13635-000, Brazil; (P.H.M.); (R.V.A.Z.); (L.d.A.P.); (C.G.L.C.); (M.P.P.); (J.C.d.C.B.)
| | - Mariana Pamplona Perini
- Pet Nutrology Research Center, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Pirassununga 13635-000, Brazil; (P.H.M.); (R.V.A.Z.); (L.d.A.P.); (C.G.L.C.); (M.P.P.); (J.C.d.C.B.)
| | | | | | - Júlio Cesar de Carvalho Balieiro
- Pet Nutrology Research Center, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Pirassununga 13635-000, Brazil; (P.H.M.); (R.V.A.Z.); (L.d.A.P.); (C.G.L.C.); (M.P.P.); (J.C.d.C.B.)
| | - Marcio Antonio Brunetto
- Pet Nutrology Research Center, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Pirassununga 13635-000, Brazil; (P.H.M.); (R.V.A.Z.); (L.d.A.P.); (C.G.L.C.); (M.P.P.); (J.C.d.C.B.)
| |
Collapse
|
3
|
Rodrigues RBA, Zafalon RVA, Rentas MF, Risolia LW, Macedo HT, Perini MP, da Silva AMG, Marchi PH, Balieiro JCDC, Mendes WS, Vendramini THA, Brunetto MA. The Supplementation of Docosahexaenoic Acid-Concentrated Fish Oil Enhances Cognitive Function in Puppies. Animals (Basel) 2023; 13:2938. [PMID: 37760338 PMCID: PMC10525578 DOI: 10.3390/ani13182938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/16/2023] [Accepted: 08/19/2023] [Indexed: 09/29/2023] Open
Abstract
Docosahexaenoic acid (DHA) has an important role in brain development and functionality. Therefore, this study aimed to evaluate the effects of DHA-concentrated fish oil on the cognitive function of puppies. Twelve 3-month-old puppies were included, blocked by breed and randomly distributed into two groups: the Control Group (CG), without supplementation, and the Experimental Group (EG), supplemented with 40 mg DHA/kg BW/day. The object discrimination test was used, with a normal stage (NS) and a reverse stage (RS), and blood samples were collected to evaluate the serum polyunsaturated fatty acid (PUFA) concentration and total antioxidant capacity (TAC) before (T0) and 30 (T1), 60 (T2) and 90 (T3) days after beginning the study. For the NS, there were effects of treatment (p = 0.0039) and time (p < 0.0001), in which the correct answer frequency in the EG was higher than the CG. The serum eicosapentaenoic acid (EPA) + HA concentrations at T1, T2 and T3 were higher than at T0 for the EG (p = 0.0159), in addition, EG showed higher serum EPA + DHA concentrations than CG at T2 (p = 0.0245). The TAC values were similar between the groups (p = 0.3211). It was concluded that the cognitive function of puppies can be enhanced with DHA-concentrated fish oil supplementation without increasing the serum lipid oxidation.
Collapse
Affiliation(s)
- Roberta Bueno Ayres Rodrigues
- Pet Nutrology Research Center (CEPEN-PET), Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga 13635-000, Brazil; (R.B.A.R.); (R.V.A.Z.); (M.F.R.); (L.W.R.); (H.T.M.); (M.P.P.); (A.M.G.d.S.); (P.H.M.); (J.C.d.C.B.)
| | - Rafael Vessecchi Amorim Zafalon
- Pet Nutrology Research Center (CEPEN-PET), Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga 13635-000, Brazil; (R.B.A.R.); (R.V.A.Z.); (M.F.R.); (L.W.R.); (H.T.M.); (M.P.P.); (A.M.G.d.S.); (P.H.M.); (J.C.d.C.B.)
| | - Mariana Fragoso Rentas
- Pet Nutrology Research Center (CEPEN-PET), Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga 13635-000, Brazil; (R.B.A.R.); (R.V.A.Z.); (M.F.R.); (L.W.R.); (H.T.M.); (M.P.P.); (A.M.G.d.S.); (P.H.M.); (J.C.d.C.B.)
| | - Larissa Wünsche Risolia
- Pet Nutrology Research Center (CEPEN-PET), Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga 13635-000, Brazil; (R.B.A.R.); (R.V.A.Z.); (M.F.R.); (L.W.R.); (H.T.M.); (M.P.P.); (A.M.G.d.S.); (P.H.M.); (J.C.d.C.B.)
| | - Henrique Tobaro Macedo
- Pet Nutrology Research Center (CEPEN-PET), Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga 13635-000, Brazil; (R.B.A.R.); (R.V.A.Z.); (M.F.R.); (L.W.R.); (H.T.M.); (M.P.P.); (A.M.G.d.S.); (P.H.M.); (J.C.d.C.B.)
| | - Mariana Pamplona Perini
- Pet Nutrology Research Center (CEPEN-PET), Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga 13635-000, Brazil; (R.B.A.R.); (R.V.A.Z.); (M.F.R.); (L.W.R.); (H.T.M.); (M.P.P.); (A.M.G.d.S.); (P.H.M.); (J.C.d.C.B.)
| | - Amanda Maria Gomes da Silva
- Pet Nutrology Research Center (CEPEN-PET), Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga 13635-000, Brazil; (R.B.A.R.); (R.V.A.Z.); (M.F.R.); (L.W.R.); (H.T.M.); (M.P.P.); (A.M.G.d.S.); (P.H.M.); (J.C.d.C.B.)
| | - Pedro Henrique Marchi
- Pet Nutrology Research Center (CEPEN-PET), Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga 13635-000, Brazil; (R.B.A.R.); (R.V.A.Z.); (M.F.R.); (L.W.R.); (H.T.M.); (M.P.P.); (A.M.G.d.S.); (P.H.M.); (J.C.d.C.B.)
| | - Júlio César de Carvalho Balieiro
- Pet Nutrology Research Center (CEPEN-PET), Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga 13635-000, Brazil; (R.B.A.R.); (R.V.A.Z.); (M.F.R.); (L.W.R.); (H.T.M.); (M.P.P.); (A.M.G.d.S.); (P.H.M.); (J.C.d.C.B.)
| | | | - Thiago Henrique Annibale Vendramini
- Pet Nutrology Research Center (CEPEN-PET), Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga 13635-000, Brazil; (R.B.A.R.); (R.V.A.Z.); (M.F.R.); (L.W.R.); (H.T.M.); (M.P.P.); (A.M.G.d.S.); (P.H.M.); (J.C.d.C.B.)
| | - Marcio Antonio Brunetto
- Pet Nutrology Research Center (CEPEN-PET), Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga 13635-000, Brazil; (R.B.A.R.); (R.V.A.Z.); (M.F.R.); (L.W.R.); (H.T.M.); (M.P.P.); (A.M.G.d.S.); (P.H.M.); (J.C.d.C.B.)
| |
Collapse
|
4
|
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] [What about the content of this article? (0)] [Affiliation(s)] [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.
Collapse
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
| |
Collapse
|
5
|
Pedrinelli V, Zafalon RVA, Rodrigues RBA, Perini MP, Conti RMC, de Carvalho Balieiro JC, Brunetto MA. Influence of number of ingredients, use of supplement and vegetarian or vegan preparation on the composition of homemade diets for dogs and cats. BMC Vet Res 2021; 17:358. [PMID: 34798889 PMCID: PMC8605502 DOI: 10.1186/s12917-021-03068-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 10/26/2021] [Indexed: 11/10/2022] Open
Abstract
Background Homemade diets are a worldwide trend, and many recipes are currently available on websites but may not be considered balanced. This study aimed to evaluate if the number of ingredients, supplement, or vegetarian/vegan-only ingredients included in a recipe influence the nutrient content of homemade diets for dogs and cats. Chemical analyses were performed on 75 diets for dogs and 25 for cats prepared according to websites’ recipes, and minerals were analyzed by inductively coupled plasma optical emission spectrometry (ICP-OES). Results Canine diets that met fat requirements had more ingredients than those below recommendations. None of the cat diets met iron requirements, and feline diets that met requirements of manganese had fewer ingredients and those that supplied requirements of protein and sodium had more ingredients than the diets below recommendations (p < 0.05). Non-supplemented canine and feline diets had calcium and calcium:phosphorus ratio below recommendations (p < 0.05). Non-supplemented feline diets had lower sodium and iron, and zinc levels were below recommendation in diets for both species. Diets with animal products for dogs had higher levels of protein and zinc, although zinc was deficient in both groups, and there were higher amounts of crude fiber, magnesium, and manganese in vegetarian/vegan diets (p < 0.05). Diets with animal products for cats had higher levels of protein (p = 0.003), but there was a higher amount of crude fiber (p = 0.014) in vegetarian/vegan diets. Conclusion The number of ingredients and vegetarian/vegan preparation did not guarantee nutritional adequacy of diets, and the presence of supplement did not ensure a balanced diet.
Collapse
Affiliation(s)
- Vivian Pedrinelli
- Veterinary Nutrology Service, Veterinary Teaching Hospital, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Avenida Professor Orlando Marques de Paiva, 87, Sao Paulo, 05508-270, Brazil
| | - Rafael Vessecchi Amorim Zafalon
- Pet Nutrology Research Center, Nutrition and Production Department, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Avenida Duque de Caxias Norte, 255, Pirassununga, 13635-900, Brazil
| | - Roberta Bueno Ayres Rodrigues
- Pet Nutrology Research Center, Nutrition and Production Department, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Avenida Duque de Caxias Norte, 255, Pirassununga, 13635-900, Brazil
| | - Mariana Pamplona Perini
- Pet Nutrology Research Center, Nutrition and Production Department, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Avenida Duque de Caxias Norte, 255, Pirassununga, 13635-900, Brazil
| | - Renata Maria Consentino Conti
- Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Avenida Duque de Caxias Norte, 255, Pirassununga, 13635-900, Brazil
| | - Júlio Cesar de Carvalho Balieiro
- Department of Animal Nutrition and Production, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Avenida Duque de Caxias Norte, 255, Pirassununga, 13635-900, Brazil
| | - Márcio Antonio Brunetto
- Veterinary Nutrology Service, Veterinary Teaching Hospital, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Avenida Professor Orlando Marques de Paiva, 87, Sao Paulo, 05508-270, Brazil. .,Pet Nutrology Research Center, Nutrition and Production Department, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Avenida Duque de Caxias Norte, 255, Pirassununga, 13635-900, Brazil.
| |
Collapse
|
6
|
Zafalon RVA, Perini MP, Vendramini THA, Pedrinelli V, Rentas MF, Morilha IB, Fiuza Henríquez LB, Conti RMC, Brunetto MA. Vitamin-mineral supplements do not guarantee the minimum recommendations and may imply risks of mercury poisoning in dogs and cats. PLoS One 2021; 16:e0250738. [PMID: 33901261 PMCID: PMC8075222 DOI: 10.1371/journal.pone.0250738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 04/12/2021] [Indexed: 11/18/2022] Open
Abstract
Given the importance of using the vitamin-mineral supplements to guarantee the minimum nutritional recommendations for pets in homemade foods, and hypothesizing that these products may contribute to toxic metals contamination, the present study aimed to determine the concentrations of essential minerals and toxic metals in vitamin-mineral supplements available in the Brazilian market and calculate if the amount recommended by the manufacturer guarantees the minimum recommendations of NRC (2006) and FEDIAF (2020), as well as calculating the amount of toxic metals that animals would consume, according to the amounts recommended by the manufacturer. Seven vitamin-mineral supplements were analyzed. The determination of essential minerals and toxic metals was performed using ICP-OES. Comparisons were made with the minimum recommendations for essential minerals, and with the maximum tolerated levels of toxic metals established by the FDA (2011), descriptively. Most of the vitamin-mineral supplements, in the quantities recommended by the manufacturers, do not guarantee the minimum recommendations of NCR (2006) and FEDIAF (2020) for the following elements: calcium, potassium, magnesium, sodium, phosphorus, selenium, and zinc. Only one supplement had detectable selenium concentrations. Three supplements provided more than 0.02mg of mercury/kg of body weight, the safe upper limit used to establish the maximum tolerated level of this element. It is concluded that most vitamin-mineral supplements do not meet the minimum recommendations for most essential minerals and, if formulated by untrained professionals, even with supplementation, homemade foods may still be nutritionally deficient. Furthermore, some vitamin-mineral supplements analyzed may imply risks of mercury poisoning in pets.
Collapse
Affiliation(s)
- Rafael Vessecchi Amorim Zafalon
- Department of Animal Nutrition and Production, Pet Nutrology Research Center (CEPEN-PET), School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga, Brazil
| | - Mariana Pamplona Perini
- Department of Animal Nutrition and Production, Pet Nutrology Research Center (CEPEN-PET), School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga, Brazil
| | - Thiago Henrique Annibale Vendramini
- Department of Animal Nutrition and Production, Pet Nutrology Research Center (CEPEN-PET), School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga, Brazil
| | - Vivian Pedrinelli
- Veterinary Nutrology Service (VNS), Veterinary Teaching Hospital, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), São Paulo, Brazil
| | - Mariana Fragoso Rentas
- Department of Animal Nutrition and Production, Pet Nutrology Research Center (CEPEN-PET), School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga, Brazil
| | - Isabela Benelli Morilha
- Department of Animal Nutrition and Production, Pet Nutrology Research Center (CEPEN-PET), School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga, Brazil
| | - Lucas Ben Fiuza Henríquez
- Department of Animal Nutrition and Production, Pet Nutrology Research Center (CEPEN-PET), School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga, Brazil
| | - Renata Maria Consentino Conti
- Department of Animal Nutrition and Production, Pet Nutrology Research Center (CEPEN-PET), School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga, Brazil
| | - Marcio Antonio Brunetto
- Department of Animal Nutrition and Production, Pet Nutrology Research Center (CEPEN-PET), School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga, Brazil
- Veterinary Nutrology Service (VNS), Veterinary Teaching Hospital, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), São Paulo, Brazil
| |
Collapse
|
7
|
Zafalon RVA, Ruberti B, Rentas MF, Amaral AR, Vendramini THA, Chacar FC, Kogika MM, Brunetto MA. The Role of Vitamin D in Small Animal Bone Metabolism. Metabolites 2020; 10:E496. [PMID: 33287408 PMCID: PMC7761812 DOI: 10.3390/metabo10120496] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/09/2020] [Accepted: 11/10/2020] [Indexed: 12/14/2022] Open
Abstract
Dogs and cats have differences in vitamin D metabolism compared to other mammalian species, as they are unable to perform vitamin D cutaneous synthesis through sun exposure. Therefore, they are dependent on the dietary intake of this nutrient. The classic functions of vitamin D are to stimulate intestinal calcium and phosphate absorption, renal calcium and phosphate reabsorption and regulate bone mineral metabolism. Thus, it is an important nutrient for calcium and phosphorus homeostasis. This review highlights the evidence of the direct and indirect actions of vitamin D on bone mineral metabolism, the consequences of nutritional imbalances of this nutrient in small animals, as well as differences in vitamin D metabolism between different size dogs.
Collapse
Affiliation(s)
- Rafael Vessecchi Amorim Zafalon
- Pet Nutrology Research Center, Nutrition and Production Department, School of Veterinary Medicine and Animal Science, University of São Paulo, Jardim Elite, Pirassununga 13635-900, Brazil; (R.V.A.Z.); (M.F.R.); (T.H.A.V.)
| | - Bruna Ruberti
- Small Animal Internal Medicine Service, Veterinary Teaching Hospital, School of Veterinary Medicine and Animal Science, University of São Paulo, Cidade Universitária, São Paulo 05508-270, Brazil; (B.R.); (M.M.K.)
| | - Mariana Fragoso Rentas
- Pet Nutrology Research Center, Nutrition and Production Department, School of Veterinary Medicine and Animal Science, University of São Paulo, Jardim Elite, Pirassununga 13635-900, Brazil; (R.V.A.Z.); (M.F.R.); (T.H.A.V.)
| | - Andressa Rodrigues Amaral
- Veterinary Nutrology Service, Veterinary Teaching Hospital, School of Veterinary Medicine and Animal Science, University of São Paulo, Cidade Universitária, São Paulo 05508-270, Brazil;
| | - Thiago Henrique Annibale Vendramini
- Pet Nutrology Research Center, Nutrition and Production Department, School of Veterinary Medicine and Animal Science, University of São Paulo, Jardim Elite, Pirassununga 13635-900, Brazil; (R.V.A.Z.); (M.F.R.); (T.H.A.V.)
| | - Fernanda Chicharo Chacar
- Department of Internal Medicine, Federal Institute of Education, Science and Technology of South of Minas Gerais, IFSULDEMINAS, Muzambinho 37890-000, Brazil;
| | - Marcia Mery Kogika
- Small Animal Internal Medicine Service, Veterinary Teaching Hospital, School of Veterinary Medicine and Animal Science, University of São Paulo, Cidade Universitária, São Paulo 05508-270, Brazil; (B.R.); (M.M.K.)
| | - Marcio Antonio Brunetto
- Pet Nutrology Research Center, Nutrition and Production Department, School of Veterinary Medicine and Animal Science, University of São Paulo, Jardim Elite, Pirassununga 13635-900, Brazil; (R.V.A.Z.); (M.F.R.); (T.H.A.V.)
- Veterinary Nutrology Service, Veterinary Teaching Hospital, School of Veterinary Medicine and Animal Science, University of São Paulo, Cidade Universitária, São Paulo 05508-270, Brazil;
| |
Collapse
|
8
|
Vendramini THA, Macedo HT, Amaral AR, Rentas MF, Macegoza MV, Zafalon RVA, Pedrinelli V, Mesquita LG, de Carvalho Balieiro JC, Pfrimer K, Pedreira RS, Nowosh V, Pontieri CFF, Massoco CDO, Brunetto MA. Gene expression of the immunoinflammatory and immunological status of obese dogs before and after weight loss. PLoS One 2020; 15:e0238638. [PMID: 32966299 PMCID: PMC7510989 DOI: 10.1371/journal.pone.0238638] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 08/20/2020] [Indexed: 12/17/2022] Open
Abstract
Obesity is characterized by a low degree of chronic inflammation state that, along with metabolic modifications, promotes important changes in the animal's organism. Adipose tissue actively participates in inflammation and immunity, and several defense cells of the organism may, therefore, be involved in the diversity found between obese and ideal weight individuals. Studies regarding this subject have shown immune cell changes in humans and rats, however, the literature is scarce in relation to dogs. Thus, the present study aimed to evaluate the gene expression profile of immunoinflammatory response and the lymphoproliferation of obese dogs before and after weight loss. Eight female dogs, neutered, of different breeds, aged between 1 and 8 years (4.74±3.19), obese, with body condition score (BCS) of 9 out of a 9-point scale and body composition determined by the deuterium isotope dilution method were included. The obese dogs were enrolled in a weight loss program and after losing 20% of their initial weight became a second experimental group. A third experimental group consisted of eight female dogs, neutered, aged between 1 and 8 years (3.11±0.78) and with ideal BCS (5 out of a 9-point scale). Gene expression of immunoinflammatory cytokines (resistin, leptin, adiponectin, TNF-α, IL-6, IL-8, and IL-10) was assessed by qRT-PCR and immunity was assessed by lymphoproliferative response using the flow cytometry technique. The data that presented normal distribution was evaluated by analysis of variance by the PROC MIXED of the SAS and when differences were detected, these were compared by the Tukey test. Regarding the gene expression data, the procedure PROC GLIMMIX was adopted and the methodology of generalized linear model was used, in which the Gama distribution proved to be adequate. Values of p<0.05 were considered significant. The mean weight loss period of the animals included in the study was 194.25 ± 28.31 days and the mean weekly weight loss rate was 1.02 ± 0.82%. The average fat mass, both in percentage (P<0.001) and in kilograms (P = 0.012), was higher in the obese group (40.88%; 8.91kg), returning to normal and without difference between the control group (19.16%; 3.01kg) and after weight loss (22.10%; 4.11kg). The weight loss program resulted in an increase in percentage of lean body mass (P = 0.001), 55.50% in obese animals vs 77.90% in obese dogs after weight loss, the latter with no difference when compared to the control group (80.84%). The obese group presented increased gene expression of resistin and IL-8 in relation to the weight loss group (P = 0.002). In adiponectin, the obese group presented increased mRNA gene expression when compared to the weight loss group (P = 0.003). The evaluation of lymphocyte proliferation showed differences between the group of obese animals before and after weight loss (P = 0.004). Weight loss resulted in an increase in the lymphoproliferation rate (18.48%) compared to obese dogs at the beginning of the study (10.71%). These results indicate that weight loss modulates the immunoinflammatory response of obese dogs and may present important benefits to health and longevity of dogs.
Collapse
Affiliation(s)
- Thiago Henrique Annibale Vendramini
- Pet Nutrology Research Center, Nutrition and Production Department, School of Veterinary Medicine and Animal Science, University of Sao Paulo—USP, Pirassununga, São Paulo, Brazil
| | - Henrique Tobaro Macedo
- Pet Nutrology Research Center, Nutrition and Production Department, School of Veterinary Medicine and Animal Science, University of Sao Paulo—USP, Pirassununga, São Paulo, Brazil
| | - Andressa Rodrigues Amaral
- Veterinary Nutrology Service, Teaching Veterinary Hospital, School of Veterinary Medicine and Animal Science, University of Sao Paulo—USP, São Paulo, São Paulo, Brazil
| | - Mariana Fragoso Rentas
- Pet Nutrology Research Center, Nutrition and Production Department, School of Veterinary Medicine and Animal Science, University of Sao Paulo—USP, Pirassununga, São Paulo, Brazil
| | - Matheus Vinícius Macegoza
- Pet Nutrology Research Center, Nutrition and Production Department, School of Veterinary Medicine and Animal Science, University of Sao Paulo—USP, Pirassununga, São Paulo, Brazil
| | - Rafael Vessecchi Amorim Zafalon
- Pet Nutrology Research Center, Nutrition and Production Department, School of Veterinary Medicine and Animal Science, University of Sao Paulo—USP, Pirassununga, São Paulo, Brazil
| | - Vivian Pedrinelli
- Veterinary Nutrology Service, Teaching Veterinary Hospital, School of Veterinary Medicine and Animal Science, University of Sao Paulo—USP, São Paulo, São Paulo, Brazil
| | - Lígia Garcia Mesquita
- Pet Nutrology Research Center, Nutrition and Production Department, School of Veterinary Medicine and Animal Science, University of Sao Paulo—USP, Pirassununga, São Paulo, Brazil
| | - Júlio César de Carvalho Balieiro
- Pet Nutrology Research Center, Nutrition and Production Department, School of Veterinary Medicine and Animal Science, University of Sao Paulo—USP, Pirassununga, São Paulo, Brazil
| | - Karina Pfrimer
- Medical School of Ribeirão Preto, University of São Paulo—USP, Ribeirão Preto, São Paulo, Brazil
| | | | - Victor Nowosh
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo–USP, São Paulo, São Paulo, Brazil
| | | | - Cristina de Oliveira Massoco
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo–USP, São Paulo, São Paulo, Brazil
| | - Marcio Antonio Brunetto
- Pet Nutrology Research Center, Nutrition and Production Department, School of Veterinary Medicine and Animal Science, University of Sao Paulo—USP, Pirassununga, São Paulo, Brazil
- Veterinary Nutrology Service, Teaching Veterinary Hospital, School of Veterinary Medicine and Animal Science, University of Sao Paulo—USP, São Paulo, São Paulo, Brazil
- * E-mail:
| |
Collapse
|
9
|
Rentas MF, Pedreira RS, Perini MP, Risolia LW, Zafalon RVA, Alvarenga IC, Vendramini THA, Balieiro JCC, Pontieri CFF, Brunetto MA. Galactoligosaccharide and a prebiotic blend improve colonic health and immunity of adult dogs. PLoS One 2020; 15:e0238006. [PMID: 32857814 PMCID: PMC7455039 DOI: 10.1371/journal.pone.0238006] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 08/07/2020] [Indexed: 12/20/2022] Open
Abstract
This study aimed to evaluate the effects of two prebiotics in different concentrations on nutrient digestibility, fermentative products and immunological variables in adult dogs. Twenty-four adult dogs were randomly divided into six blocks according to their metabolic body weights (BW0.75); within these groups, dogs were randomized to four treatments: control without prebiotics (CO); inclusion of 0.5% prebiotic blend Yes-Golf (B1); inclusion of 1.0% galactooligosaccharide (GOS); and inclusion of 1.0% prebiotic blend Yes-Golf (B2). The experiment lasted 30 days, with 20 days adaptation and 10 days stool and blood collection. Results were analyzed for normality and means were separated by ANOVA and adjusted by the Tukey test at the significance level of 5.0%. Prebiotic supplementation had no effect on apparent digestibility coefficients (ADC), total stool production and fecal scores (p > 0.05). Prebiotics evaluated also did not alter fecal pH, nor the concentrations of ammonia, lactic acid, short chain fatty acids (SCFA) and most fecal branched chain fatty acids (BCFA) (p > 0.05). The addition of GOS decreased the concentration of iso-valeric acid (p = 0.0423). Regarding immunological variables, concentrations of fecal IgA were not influenced by the treatments. Treatments GOS and B2 increased the total number of polymorphonuclear cells, as well as the oxidative burst in relation to treatments B1 and CO (p < 0.0001). Treatment B2 improved the rate of S. aureus phagocytosis in relation to CO (p = 0.0111), and both the GOS and B2 treatments had a better index for E. coli phagocytosis than the CO treatment (p = 0.0067). In conclusion, there was indication that both prebiotics GOS and B2 at 1.0% inclusion improved the immunity of healthy dogs.
Collapse
Affiliation(s)
- Mariana Fragoso Rentas
- Pet Nutrology Research Center, Nutrition and Animal Production Department, School of Veterinary Medicine and Animal Science, University of São Paulo–USP, Pirassununga, Brazil
| | - Raquel Silveira Pedreira
- Nutritional Development Center, Grandfood Indústria e Comércio Ltda (Premier Pet), Dourado, Brazil
| | - Mariana Pamplona Perini
- Pet Nutrology Research Center, Nutrition and Animal Production Department, School of Veterinary Medicine and Animal Science, University of São Paulo–USP, Pirassununga, Brazil
| | - Larissa Wünsche Risolia
- Pet Nutrology Research Center, Nutrition and Animal Production Department, School of Veterinary Medicine and Animal Science, University of São Paulo–USP, Pirassununga, Brazil
| | - Rafael Vessecchi Amorim Zafalon
- Pet Nutrology Research Center, Nutrition and Animal Production Department, School of Veterinary Medicine and Animal Science, University of São Paulo–USP, Pirassununga, Brazil
| | | | - Thiago Henrique Annibale Vendramini
- Pet Nutrology Research Center, Nutrition and Animal Production Department, School of Veterinary Medicine and Animal Science, University of São Paulo–USP, Pirassununga, Brazil
| | - Júlio Cesar Carvalho Balieiro
- Pet Nutrology Research Center, Nutrition and Animal Production Department, School of Veterinary Medicine and Animal Science, University of São Paulo–USP, Pirassununga, Brazil
| | | | - Marcio Antonio Brunetto
- Pet Nutrology Research Center, Nutrition and Animal Production Department, School of Veterinary Medicine and Animal Science, University of São Paulo–USP, Pirassununga, Brazil
- * E-mail:
| |
Collapse
|
10
|
Vendramini THA, Pedrinelli V, Macedo HT, Zafalon RVA, Risolia LW, Rentas MF, Macegoza MV, Gameiro AH, Brunetto MA. Homemade versus extruded and wet commercial diets for dogs: Cost comparison. PLoS One 2020; 15:e0236672. [PMID: 32706820 PMCID: PMC7380597 DOI: 10.1371/journal.pone.0236672] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 07/10/2020] [Indexed: 11/18/2022] Open
Abstract
The present study aimed to verify and compare the costs of homemade diets with extruded and wet commercial diets for dogs in maintenance and consuming therapeutic diets (obesity, congestive heart failure, diabetes, hepatic encephalopathy, chronic kidney disease, and food hypersensitivity), which is important information that impacts in the choice of food by the owners. The maintenance energy requirements (MER) were estimated for adult dogs of different sizes (3 kg, 15 kg, 30 kg, and 50 kg) and the daily amounts of food intake were estimated for each type of food. The costs were calculated per day, per 1000 kcal of metabolizable energy of product and per kg of metabolic weight of the animal. Fourteen complete and balanced homemade diets were formulated, and in each proposed group, two diets with different protein sources were used. Under the conditions of the present study, it was possible to conclude that homemade diets were more expensive than dry maintenance diets and dry therapeutic diets, while commercial wet diets were more expensive in all of the scenarios.
Collapse
Affiliation(s)
- Thiago Henrique Annibale Vendramini
- Pet Nutrology Research Center, Nutrition and Production Department, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga, Brazil
| | - Vivian Pedrinelli
- Veterinary Nutrology Service, Veterinary Teaching Hospital, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Sao Paulo, Brazil
| | - Henrique Tobaro Macedo
- Pet Nutrology Research Center, Nutrition and Production Department, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga, Brazil
| | - Rafael Vessecchi Amorim Zafalon
- Pet Nutrology Research Center, Nutrition and Production Department, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga, Brazil
| | - Larissa Wünsche Risolia
- Veterinary Nutrology Service, Veterinary Teaching Hospital, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Sao Paulo, Brazil
| | - Mariana Fragoso Rentas
- Pet Nutrology Research Center, Nutrition and Production Department, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga, Brazil
| | - Matheus Vinicius Macegoza
- Pet Nutrology Research Center, Nutrition and Production Department, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga, Brazil
| | - Augusto Hauber Gameiro
- Laboratory of Socioeconomic Analysis and Animal Science, Nutrition and Production Department, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga, Brazil
| | - Marcio Antonio Brunetto
- Pet Nutrology Research Center, Nutrition and Production Department, School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP), Pirassununga, Brazil
- Veterinary Nutrology Service, Veterinary Teaching Hospital, School of Veterinary Medicine and Animal Science, University of Sao Paulo, Sao Paulo, Brazil
- * E-mail:
| |
Collapse
|
11
|
Zafalon RVA, Rodrigues RBA, Conti RMC, Perini MP, Rentas MF, Vendramini THA, Risolia LW, Macedo HT, Brunetto MA. Comparação de metodologias para determinação de gordura e avaliação do conteúdo de cálcio e fósforo em petiscos para cães. Braz J Vet Res Anim Sci 2020. [DOI: 10.11606/issn.1678-4456.bjvras.2020.159691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
In recent years, the relationship between humans and companion animals has tightened considerably and resulted in the expansion of the range of pet food industry products available in the market. In this context, snacks have gained greater popularity as pet owners seek to please their animals by providing such foods. Due to the growing importance of the snack segment, a need exists for accurate information on the nutritional composition of these products, such as fat concentration. No studies were found that evaluated the effectiveness of different methods applied for determining the content of this nutrient in dog snacks. In addition, too much mineral content can pose health risks. Thus, the objective of this study was to compare three methodologies for determining fat in pet snack products. The moisture, calcium and phosphorus content of each was also determined to compare the obtained results with each value stated on their product labels. Fat determination methods evaluated were ether extract (EE), ether extract after acid hydrolysis (EEHA), and fat content obtained from Ankom XT15 analyzer (ANKOM). Twenty-four snacks produced by 17 companies were evaluated. The results of the three methodologies were compared using the Tukey test. The comparison between the results of the laboratory analysis and the values stated on the labels was performed using descriptive statistics. There was no difference between the three methods evaluated (p = 0.34) regarding fat content. Regarding the nutritional compliance of the labels, 25% (n = 6) of the snacks presented higher moisture content than the declared amount, 50% (n = 12) presented lower fat content, 25% (n = 6) lower phosphorus content and, in 50% (n = 12), the calcium content was not within the minimum and maximum range stated on the label. Therefore, due to the absence of difference between the results, any of the three fat determination methodologies could be used. Regarding compliance of labels for calcium, phosphorus and fat content, greater control over the nutritional composition of these foods is required since most pet owners tend to supply large quantities of snacks to dogs, leading to excessive daily energy intake.
Collapse
|
12
|
Zafalon RVA, Risolia LW, Vendramini THA, Ayres Rodrigues RB, Pedrinelli V, Teixeira FA, Rentas MF, Perini MP, Alvarenga IC, Brunetto MA. Nutritional inadequacies in commercial vegan foods for dogs and cats. PLoS One 2020; 15:e0227046. [PMID: 31951617 PMCID: PMC6968870 DOI: 10.1371/journal.pone.0227046] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 12/10/2019] [Indexed: 01/08/2023] Open
Abstract
The objective of this study was to evaluate the macronutrients composition, fatty acid and amino acid profiles, and essential minerals content of all vegan foods for dogs and cats available in the Brazilian market, and to compare results with FEDIAF (2019) and AAFCO (2019) recommendations. Four vegan pet foods were assessed (three for dogs and one for cats). The comparisons were made in a descriptive manner. All foods met the minimum recommendations for macronutrients. Arachidonic acid was not reported in any food label. Regarding the FEDIAF recommendations, one food for dogs had low calcium, another had low potassium and a third had low sodium. The cat food presented potassium content lower than recommended. The Ca:P ratio did not meet the minimum recommendation of FEDIAF (2019) and AAFCO (2019) in any of the dog’s foods analyzed, and the cat food also did not present the minimum recommendation based on FEDIAF (2019). Copper concentrations exceeded the legal limit in all foods. Zinc concentrations exceeded this limit in two foods (one for dogs and one for cats) and iron levels exceeded the legal limit in one dog food. One of the dog foods did not meet the minimum recommendation for methionine and the cat food did not meet the minimum recommendation for arginine. In addition, when the amount of nutrients consumed by animals with low energy requirements was simulated, in addition to the same non-conformities described above, it was observed that the cat food does not meet the minimum recommended of protein and taurine in unit/Kg0.67. It was concluded that all foods analyzed had one or more nutrients below the recommended levels and some presented zinc and copper excess, therefore, these foods should not be recommended for dogs and cats, because dietary deficiencies found may lead to health risks for dogs and cats. Furthermore, manufacturers should review their formulations to ensure the nutritional adequacy of these foods.
Collapse
Affiliation(s)
| | - Larissa Wünsche Risolia
- School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Pirassununga, Brazil
| | | | | | - Vivian Pedrinelli
- School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Pirassununga, Brazil
| | - Fabio Alves Teixeira
- School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Pirassununga, Brazil
| | - Mariana Fragoso Rentas
- School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Pirassununga, Brazil
| | - Mariana Pamplona Perini
- School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Pirassununga, Brazil
| | - Isabella Corsato Alvarenga
- Department of Grain Science and Industry, Kansas State University, Manhattan, Kansas, United States of America
| | - Marcio Antonio Brunetto
- School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Pirassununga, Brazil
| |
Collapse
|
13
|
Pedrinelli V, Zafalon RVA, Rodrigues RBA, Perini MP, Conti RMC, Vendramini THA, de Carvalho Balieiro JC, Brunetto MA. Concentrations of macronutrients, minerals and heavy metals in home-prepared diets for adult dogs and cats. Sci Rep 2019; 9:13058. [PMID: 31506479 PMCID: PMC6736975 DOI: 10.1038/s41598-019-49087-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Accepted: 07/09/2019] [Indexed: 11/08/2022] Open
Abstract
Pet owners often don't acknowledge the need for home-prepared diet formulation by a trained professional and may use recipes from sources such as the internet. Macronutrient and mineral composition of home-prepared diets were analyzed and compared to NRC and FEDIAF recommendations, and heavy metal concentrations were analyzed and compared to FDA maximum tolerable levels (MTL) for dogs and cats. Recipes of home-prepared diets for adult dogs (n = 75) and cats (n = 25) were evaluated. Analyses of protein, fat, and fiber were performed according to AOAC, and mineral and heavy metal analyses were performed using inductively coupled plasma optical emission spectrometry (ICP-OES). None of the diets supplied recommended levels of all nutrients evaluated, and more than 84.0% of diets presented three or more nutrients below recommendations. Nutrients with most levels below recommendations were calcium and potassium in recipes for dogs and iron and zinc in recipes for cats. As for heavy metals, levels of lead, cobalt, mercury, uranium, and vanadium were above MTLs. Results suggest that home-prepared diets may be a health risk to dogs and cats if not properly formulated. Furthermore, the chronic heavy metal intake must be better elucidated in order to understand the full impact of results.
Collapse
Affiliation(s)
- Vivian Pedrinelli
- School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP) - Department of Medical Clinic, São Paulo, postcode 13690-970, Brazil
| | - Rafael Vessecchi Amorim Zafalon
- School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP) - Department of Animal Nutrition and Production, Pirassununga, postcode 13635-900, Brazil
| | - Roberta Bueno Ayres Rodrigues
- School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP) - Department of Animal Nutrition and Production, Pirassununga, postcode 13635-900, Brazil
| | - Mariana Pamplona Perini
- School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP) - Department of Animal Nutrition and Production, Pirassununga, postcode 13635-900, Brazil
| | - Renata Maria Consentino Conti
- School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP) - Department of Animal Nutrition and Production, Pirassununga, postcode 13635-900, Brazil
| | - Thiago Henrique Annibale Vendramini
- School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP) - Department of Animal Nutrition and Production, Pirassununga, postcode 13635-900, Brazil
| | - Júlio César de Carvalho Balieiro
- School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP) - Department of Animal Nutrition and Production, Pirassununga, postcode 13635-900, Brazil
| | - Márcio Antonio Brunetto
- School of Veterinary Medicine and Animal Science, University of Sao Paulo (USP) - Department of Animal Nutrition and Production, Pirassununga, postcode 13635-900, Brazil.
| |
Collapse
|
14
|
Perini MP, Zafalon RVA, Rodrigues RBA, Rentas MF, Risolia LW, Brunetto MA. Avaliação de diferentes metodologias para determinação de gordura e teores de cálcio e fósforo em petiscos para cães. AVS 2018. [DOI: 10.5380/avs.v23i1esp.59937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Com o presente estudo, objetivou-se comparar três diferentes metodologias para determinação de gordura: extrato etéreo (EE), extrato etéreo após hidrólise ácida (EEHA) e determinação pelo analisador Ankom XT15 (ANKOM), em petiscos para cães; avaliar os teores de cálcio e fósforo nesses alimentos, bem como comparar os resultados com os valores declarados nos rótulos. Os resultados das três metodologias foram comparados através do teste t (p<0,05) no programa Statistical Analysis System (SAS, versão 9.4) e a comparação dos resultados com o rótulo foi realizada através de estatística descritiva. Os três métodos avaliados não apresentaram diferenças entre si (p=0,34). Constatou-se discrepância entre os valores declarados nos rótulos e os resultados laboratoriais em vários produtos. Conclui-se que não houve diferença entre as metodologias e que existe a necessidade de melhor fiscalização dos rótulos de petiscos para cães.
Collapse
|