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STUDENT PROGRAM
PAPER ABSTRACTS
Serao, Ph.D. Her research focus is canine nutrition. She received her bachelor's
degree in animal science from Iowa State University in the fall of 2016.
10:05-10:20 a.m. Generating consumer terminology to describe
emotions in pet owners and their pets
Emotions are one of the factors that affect
consumers' choices and behaviors toward products.
However, there have been limited studies discussing the emotions of pet owners and pets (as
perceived by their owners). In Weilun Tsai's study,
focus group sessions were conducted to generate
emotions terminology from both pets and pet
owners. These collected emotions were sorted and
classified to form lists of emotions terminology.
Lists of 45, 64, 35 and 70 emotion terms were generated for dogs, cats, dog
owners and cat owners, respectively. The terminology generated in this research
could provide product developers a better understanding of pet food consumers.
Tsai is a graduate student at Kansas State University, where she pursues her
passion in sensory science. Specifically, she uses sensory science as a tool for
understanding little friends - pets. Her research focuses on dog preference of
meat, understanding pet and pet owner emotion, and its application in pet food.
Tsai won the poster award in the society of sensory professionals in 2018 for
her research in dog preference of various cooked meat. She devotes herself to
research for pets and will keep exploring the field of pets.
10:20-10:35 a.m. Nutritional value of pulses in pet foods: A
closer look at amino acid quality
In this study, Lauren Reilly determined the macronutrient composition, complete amino acid profile, amino
acid digestibility and protein quality of 14 plant-based
protein sources. The analyzed sources include protein
concentrates (pea, potato, faba bean, yeast and soy
concentrates), pulses (green lentil, chickpea, navy
bean, black beans and yellow peas) and byproducts
(soybean meal, corn gluten meal, peanut flour and
soy flakes). Standardized amino acid digestibility
was determined through a precision-fed rooster assay using cecectomized roosters.
The protein quality of these ingredients was assessed through the use of digestible
indispensable amino acid scores (DIAAS).
Reilly grew up with a love of animals and always knew she would turn her passion
into a career. She started working with animals in high school, inspiring her to
study animal sciences at the University of Illinois. During her undergraduate years,
she interned at the Champaign County Humane Society and as an undergraduate
laboratory assistant in an immunophysiology and behavior lab. After graduation,
she worked as a veterinary assistant in a mixed practice focusing on companion
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2019 Petfood Forum

animals, large animals and wildlife medicine. She is now working toward her Ph.D.
with Maria R.C. de Godoy, Ph.D., evaluating novel plant protein sources in canine
and feline diets. Lauren is excited to expand her knowledge in the field of companion
animal nutrition and for her future career in the pet food industry.
10:35-10:50 a.m. Effect of ancient grains and grain-free
carbohydrate sources on nutrient digestibility and stool
consistency in dogs
Ancient grains such as sorghum, millet and spelt
are being considered as an alternative to grain-free
dog diets due to their perceived health benefits.
Grain-free diets have become very popular. There is
currently no research comparing these two pet diet
types. Thus, the objective of Julia Guazzelli Pezzali's study was to evaluate the effects of ancient
grains compared to a grain-free diet on nutrient
digestibility and stool consistency in dogs.
Two dog maintenance diets were formulated containing same proportion of
carbohydrates sources: an ancient grains diet (AG), containing sorghum, millet
and spelt, and a grain-free diet (GF), containing potato, pea and tapioca starch.
Experimental diets were coated with chicken fat, dry palatant and titanium dioxide to enable estimation of apparent total tract digestibility (ATTD). Experimental
diets were fed to beagle dogs housed individually in metabolic cages.
This study was designed as a switchback consisting of two periods of 14 days. All
feces were weighed and scored during the collection period. Data was analyzed
using statistical software via the GLIMMIX procedure. No differences were
observed in defecation frequency and fecal score, but wet fecal excretion was
greater for dogs fed GF than AG. There was no difference in ATTD of dry matter,
organic matter, gross energy, crude protein or crude fat. However, a greater crude
fiber (CF) digestibility and a lower ash digestibility was observed in dogs fed AG
vs. GF. In conclusion, this study suggests that carbohydrates derived from ancient
grains perform similarly in dogs to grain-free sources.
Pezzali is originally from Xanxere, Brazil, where she earned her DVM from Federal
University of Rio Grande do Sul (UFRGS) with a focus on animal nutrition. She
is currently pursuing her master's degree at Kansas State University under the
supervision of Greg Aldrich, Ph.D., with a focus on pet food processing. She plans
to pursue a career in the pet food industry, developing new products that optimize
processing conditions and nutrition.

POSTER PRESENTATIONS
10:55-11:05 a.m. Application strategies and efficacy of
probiotics in pet food: A review
In companion animal nutrition, probiotics (direct-fed microbials) are considered
a functional ingredient that benefits the gastrointestinal and immune health of

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Petfood Forum Guide - 2019

Table of Contents for the Digital Edition of Petfood Forum Guide - 2019

Petfood Forum Guide - 2019
Topics and speakers
Student research abstracts
Exhibitor profiles
Sponsors
Corporate profiles
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