Sarah K. Abood

Pet feeding practices of dog and cat owners in the United States and Australia

Most pet dogs and cats in developed countries are fed commercial foods, but there is growing interest in the use of noncommercial foods for pets, including homemade and raw food diets. A survey of dog and cat owners in the United States and Australia revealed that > 90% of pets were fed commercial foods, but that noncommercial foods comprised at east 25% of the diet for 17.3% of dogs and 6.3% of cats.

Attitudes of pet owners toward pet foods and feeding management of cats and dogs.

Patient motion is an important consideration in modern PET image reconstruction. Advances in PET technology mean motion has an increasingly important influence on resulting image quality. Motion-induced artefacts can have adverse effect on clinical outcomes, including missed diagnoses and oversized radiotherapy treatment volumes. This review aims to summarise the wide variety of motion correction techniques available in PET and combined PET/CT and PET/MR, with a focus on the latter. A general framework for the motion correction of PET images is presented, consisting of acquisition, modelling and correction stages. Methods for measuring, modelling and correcting motion and associated artefacts, both in literature and commercially available, are presented, and their relative merits are contrasted. Identified limitations of current methods include modelling of aperiodic and/or unpredictable motion, attaining adequate temporal resolution for motion correction in dynamic kinetic modelling acquisitions, and maintaining availability of the MR in PET/MR scans for diagnostic acquisitions. Finally, avenues for future investigation are discussed, with a focus on improvements that could improve PET image quality, and that are practical in the clinical environment. This article is protected by copyright. All rights reserved.

Intermittent and Continuous Enteral Nutrition in Critically Ill Dogs: A Prospective Randomized Trial

BACKGROUND Malnutrition is a common problem in critically ill dogs and is associated with increased morbidity and mortality in human medicine. Enteral nutrition (EN) delivery methods have been evaluated in humans to determine which is most effective in achieving caloric goals. OBJECTIVES To compare continuous infusion and intermittent bolus feeding of EN in dogs admitted to a critical care unit. ANIMALS Fifty-four dogs admitted to the critical care unit and requiring nutritional support with a nasoenteric feeding tube. METHODS Prospective randomized clinical trial. Dogs were randomized to receive either continuous infusion (Group C) or intermittent bolus feeding (Group I) of liquid EN. The percentage of prescribed nutrition delivered (PPND) was calculated every 24 hours. Frequencies of gastrointestinal (GI), mechanical, and technical complications were recorded and gastric residual volumes (GRVs) were measured. RESULTS PPND was significantly lower in Group C (98.4%) than Group I (100%). There was no significant difference in GI or mechanical complications, although Group C had a significantly higher rate of technical complications. GRVs did not differ significantly between Group C (3.1 mL/kg) and Group I (6.3 mL/kg) and were not correlated with the incidence of vomiting or regurgitation. CONCLUSIONS AND CLINICAL IMPORTANCE There was a statistically significant difference in the PPND between continuously and intermittently fed dogs, but this difference is unlikely to be clinically relevant. Critically ill dogs can be successfully supported with either continuous infusion or intermittent bolus feeding of EN with few complications. Increased GRVs may not warrant termination of enteral feeding.

Intermittent and continuous enteral nutrition in critically ill dogs

BACKGROUND Malnutrition is a common problem in critically ill dogs and is associated with increased morbidity and mortality in human medicine. Enteral nutrition (EN) delivery methods have been evaluated in humans to determine which is most effective in achieving caloric goals. OBJECTIVES To compare continuous infusion and intermittent bolus feeding of EN in dogs admitted to a critical care unit. ANIMALS Fifty-four dogs admitted to the critical care unit and requiring nutritional support with a nasoenteric feeding tube. METHODS Prospective randomized clinical trial. Dogs were randomized to receive either continuous infusion (Group C) or intermittent bolus feeding (Group I) of liquid EN. The percentage of prescribed nutrition delivered (PPND) was calculated every 24 hours. Frequencies of gastrointestinal (GI), mechanical, and technical complications were recorded and gastric residual volumes (GRVs) were measured. RESULTS PPND was significantly lower in Group C (98.4%) than Group I (100%). There was no significant difference in GI or mechanical complications, although Group C had a significantly higher rate of technical complications. GRVs did not differ significantly between Group C (3.1 mL/kg) and Group I (6.3 mL/kg) and were not correlated with the incidence of vomiting or regurgitation. CONCLUSIONS AND CLINICAL IMPORTANCE There was a statistically significant difference in the PPND between continuously and intermittently fed dogs, but this difference is unlikely to be clinically relevant. Critically ill dogs can be successfully supported with either continuous infusion or intermittent bolus feeding of EN with few complications. Increased GRVs may not warrant termination of enteral feeding.

Effect of omega-3 fatty acids on serum concentrations of adipokines in healthy cats

OBJECTIVE To determine associations between serum concentrations of omega-3 polyunsaturated fatty acids and concentrations of adiponectin, leptin, and insulin in healthy cats. ANIMALS 56 healthy adult client-owned cats. PROCEDURES Body condition score (BCS) was determined, and blood samples were collected after food was withheld for 12 hours. Serum was harvested for fatty acid analysis and measurement of serum concentrations of adiponectin, leptin, insulin, glucose, triglyceride, and cholesterol. RESULTS 1 cat was removed because of hyperglycemia. Significant interaction effects between BCS and serum concentrations of eicosapentaenoic acid (EPA) were detected for the analyses of associations between EPA and serum concentrations of adiponectin, insulin, and triglyceride. Cats were categorized into nonobese (BCS, 4 to 6 [n = 34 cats]) and obese (BCS, 7 to 8 [21]) groups; serum concentrations of EPA were directly associated with concentrations of adiponectin and inversely associated with concentrations of insulin and triglyceride in obese cats and were directly associated with concentrations of leptin and inversely associated with concentrations of adiponectin in nonobese cats. Additionally, serum concentrations of docosahexaenoic acid were directly associated with concentrations of adiponectin in obese cats. No significant associations between serum concentrations of docosahexaenoic acid or α-linolenic acid were detected in the analyses for all cats. Female cats had higher serum concentrations of adiponectin and lower concentrations of glucose than did male cats. Increased age was associated with a small increase in serum concentrations of leptin. CONCLUSIONS AND CLINICAL RELEVANCE EPA may ameliorate the decrease in adiponectin and the increase in insulin and triglyceride concentrations in obese cats.

A measure of and predictors for veterinarian trust developed with veterinary students in a simulated companion animal practice

OBJECTIVE To gain a better understanding of the role of interpersonal trust in veterinarian-client interactions during routine health-care visits, develop a measure of trust uniquely suited to the context of veterinary medicine, and interpret the actions, beliefs, and perceptions that capture client trust toward veterinarians. DESIGN Correlational study. SAMPLE 103 veterinary students and 19 standardized clients with pets from a college of veterinary medicine at a large public Midwestern university. PROCEDURES measure of trust specific to veterinarian-client interactions was constructed on the basis of preexisting conceptualizations of the construct and administered to veterinary students and standardized clients following interactions in 2 medical scenarios in a high-fidelity simulated animal health clinic. Exploratory and confirmatory factor analytic techniques were used to validate the measure of trust, and hierarchic linear modeling was used to explore indicators of standardized client trust perceptions in one of the scenarios. RESULTS Factor analysis revealed that the measure captured 2 perceptions indicative of trust in veterinary contexts: professionalism and technical candor. Students who had behaviors reflecting these factors as well as those who were perceived as more technically competent were seen as more trustworthy by standardized clients. CONCLUSIONS AND CLINICAL RELEVANCE The development of trustworthy relationships between clients and veterinarians is important to the continued growth and success of the profession. By identifying characteristics of veterinarian trustworthiness and developing related measurement tools, proactive approaches to monitoring veterinarian-client relations can be implemented and incorporated into veterinary training and practice programs to identify areas for improvement.

Student perceptions of an animal-welfare and ethics course taught early in the veterinary curriculum.

Animal welfare and veterinary ethics are two subjects that have been acknowledged as necessary for inclusion in the veterinary curriculum. In fact, the American Veterinary Medical Association (AVMA) Council on Education has mandated that veterinary ethics be taught to all students in US veterinary colleges. Animal welfare was recently included in the US veterinarians oath, and AVMA established a committee to create a model curriculum on the subject. At US veterinary colleges, the number of animal-welfare courses has more than doubled from five in 2004 to more than 10 in 2011. How and what is taught with regard to these two subjects may be as important as whether they are taught at all, and a variety of approaches and varying amounts and types of content are currently being offered on them. At Michigan State Universitys College of Veterinary Medicine, students were introduced to animal welfare and veterinary ethics during their first semester in a mandatory two-credit course. To assess their perception of the course, students completed an online evaluation at the end of the semester. Most students found the course to be challenging and effective and felt that they improved their ability to identify and discuss ethical dilemmas.

Effect of omega-3 polyunsaturated fatty acids and body condition on serum concentrations of adipokines in healthy dogs

OBJECTIVE To determine associations between serum concentrations of omega-3 polyunsaturated fatty acids or body condition and serum concentrations of adiponectin, leptin, insulin, glucose, or triglyceride in healthy dogs. ANIMALS 62 healthy adult client-owned dogs. PROCEDURES Body condition score and percentage of body fat were determined. Blood samples were collected after food was withheld for 12 hours. Serum was harvested for total lipid determination, fatty acid analysis, and measurement of serum concentrations of adiponectin, leptin, insulin, glucose, and triglyceride. Associations between the outcome variables (adiponectin, leptin, insulin, glucose, and triglyceride concentrations) and each of several variables (age, sex, percentage of body fat, and concentrations of total lipid, α-linolenic acid, eicosapentaenoic acid, docosapentaenoic acid, and docosahexaenoic acid) were determined. RESULTS Serum concentrations of docosapentaenoic acid were significantly positively associated with concentrations of adiponectin and leptin and negatively associated with concentrations of triglyceride. Serum concentrations of α-linolenic acid were significantly positively associated with concentrations of triglyceride. No significant associations were detected between serum concentrations of eicosapentaenoic acid or docosahexaenoic acid and any of the outcome variables. Percentage of body fat was significantly positively associated with concentrations of leptin, insulin, and triglyceride but was not significantly associated with adiponectin concentration. Age was positively associated with concentrations of leptin, insulin, and triglyceride and negatively associated with concentrations of adiponectin. Sex did not significantly affect serum concentrations for any of the outcome variables. CONCLUSIONS AND CLINICAL RELEVANCE Docosapentaenoic acid may increase serum concentrations of adiponectin and leptin and decrease serum triglyceride concentration in healthy dogs.

Fish oil supplementation increases concentration of adiponectin in healthy dogs.

OBJECTIVE To determine the effect of fish oil supplementation on circulating concentrations of adiponectin, leptin, insulin, glucose, triglyceride and cholesterol in healthy dogs. METHODS Twenty healthy adult dogs were administered 220 mg/kg of a fish oil supplement once daily for 30 days. At baseline, on supplement and 10 to 20 weeks off supplement, dogs were examined, body condition scores determined (range: 4 to 6), body measurements recorded for % body fat calculation and fasted blood samples collected. RESULTS Serum concentrations of the measured individual and total n-3 polyunsaturated fatty acids increased following supplementation (P<0·001). Mean serum adiponectin concentration on supplement was 3·4 µg/mL (95% confidence interval: 0·8 to 6·0; P=0·006) higher than baseline, and 5·3 µg/mL (2·0 to 8·7; P<0·001) higher than off supplement. Concentrations of adiponectin off supplement were not different from baseline. There were no significant differences in weight, body condition scores, % body fat and concentrations of other measured analytes between baseline and on supplement. CLINICAL SIGNIFICANCE Fish oil supplementation significantly increased circulating concentration of adiponectin in healthy non-obese dogs. Further investigation is warranted to determine whether this effect may be extended to obese dogs and to evaluate the potential role of fish oil supplementation in the management of disorders associated with low circulating adiponectin concentrations.

Effectively Communicating with Your Clients

The successful ability to efficiently collect diet histories, convey appropriate health messages, and discuss client concerns about the safe feeding of pets requires excellent communication skills. In addition to understanding what the client wants for their pet, thorough nutritional interviewers gather information pertaining to animal factors, dietary factors, and feeding management factors. With the expansion of the Internet, increasing advances in medical care, and the health concerns associated with pet food recalls, small animal clients are looking to veterinarians for guidance and information on dietary recommendations in ever increasing numbers. Evaluating current information on changes in the pet food industry should be a periodic learning objective for all members of the veterinary health care team. Consistent, effective communication between veterinarians, their staff, and their clients can improve compliance, increase satisfaction levels, and improve patient outcomes.