Effects of diet on body weight, body composition, metabolic status, and physical activity of adult female dogs after spay surgery
type: CreativeWork
description: Neutering is an important risk factor for obesity, which reduces the quality and length of life in dogs and cats. Presently, dietary interventions have been recognized as one of the preventive and therapeutic options for obesity in human and companion animals. The objective of this study was to evaluate the effects of specially formulated diets on BW, body composition, and blood hormones and metabolites of adult female dogs after spay surgery. All procedures were approved by the University of Illinois Institutional Animal Care and Use Committee prior to experimentation. Twenty-eight healthy adult intact female beagles (3.02 ± 0.7 yr; 10.28 ± 0.8 kg; BCS: 4.98 ± 0.57) were used in a longitudinal spay study. Twenty-four dogs were spayed and randomly allotted to one of three experimental diets: 1) moderate-protein, moderate-fiber diet (control; COSP), 2) high-protein, high-fiber diet (HP-HF), or 3) high-protein, high-fiber diet plus omega-3 and medium-chain triglyceride fats (HP-HF-O). Four dogs were sham-operated and fed the control diet (COSH). During the study, food intake was recorded daily, body weight was recorded twice a week, and body condition score was evaluated weekly. Blood was collected every 4 wk for blood hormone and metabolite measurements. Body composition was measured via DEXA scans, and voluntary physical activity was measured using Actical® devices every 8 wk. All dogs were fed to maintain BW for 12 wk after spay surgery (restricted phase), then allowed to consume twice that amount for another 12 wk (ad libitum phase). All data were analyzed using the Mixed Models procedure of SAS. Change from baseline data were analyzed for treatment, time, and treatment*time effects. Several treatment*time and treatment effects were observed. Notably, during the first 12 wk, HP-HF and HP-HF-O dogs had lower (p<0.01) blood cholesterol concentrations than COSH or COSP dogs, and HP-HF-O dogs had serum ALP concentrations lower (p<0.05) than COSP dogs. During this time…
abstract: Neutering is an important risk factor for obesity, which reduces the quality and length of life in dogs and cats. Presently, dietary interventions have been recognized as one of the preventive and therapeutic options for obesity in human and companion animals. The objective of this study was to evaluate the effects of specially formulated diets on BW, body composition, and blood hormones and metabolites of adult female dogs after spay surgery. All procedures were approved by the University of Illinois Institutional Animal Care and Use Committee prior to experimentation. Twenty-eight healthy adult intact female beagles (3.02 ± 0.7 yr; 10.28 ± 0.8 kg; BCS: 4.98 ± 0.57) were used in a longitudinal spay study. Twenty-four dogs were spayed and randomly allotted to one of three experimental diets: 1) moderate-protein, moderate-fiber diet (control; COSP), 2) high-protein, high-fiber diet (HP-HF), or 3) high-protein, high-fiber diet plus omega-3 and medium-chain triglyceride fats (HP-HF-O). Four dogs were sham-operated and fed the control diet (COSH). During the study, food intake was recorded daily, body weight was recorded twice a week, and body condition score was evaluated weekly. Blood was collected every 4 wk for blood hormone and metabolite measurements. Body composition was measured via DEXA scans, and voluntary physical activity was measured using Actical® devices every 8 wk. All dogs were fed to maintain BW for 12 wk after spay surgery (restricted phase), then allowed to consume twice that amount for another 12 wk (ad libitum phase). All data were analyzed using the Mixed Models procedure of SAS. Change from baseline data were analyzed for treatment, time, and treatment*time effects. Several treatment*time and treatment effects were observed. Notably, during the first 12 wk, HP-HF and HP-HF-O dogs had lower (p<0.01) blood cholesterol concentrations than COSH or COSP dogs, and HP-HF-O dogs had serum ALP concentrations lower (p<0.05) than COSP dogs. During this time…
author: Phungviwatnikul, Thunyaporn
language: en
keywords: Obesity, Spayed, High-protein diet, High-fiber diet
date published: 2019-11-26T20:49:30Z
date modified: 2026-07-22T22:24:45Z
provider: University of Illinois - Urbana-Champaign
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: University of Illinois at Urbana-Champaign

PropertyValue
property ID: Handle
value: http://hdl.handle.net/2142/105824