{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/129234"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/129234","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Effects of corn protein inclusion on apparent total tract macronutrient digestibility, palatability, and fecal characteristics, microbiota, and metabolites of healthy adult dogs","abstract":"Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms","abstract_html":"Submission original under an indefinite embargo labeled &#x27;Open Access&#x27;. The submission was exported from vireo on 2025-10-19 without embargo terms","abstract_has_math":false,"creators":["Vogel, Christina Lynn"],"institution":"University of Illinois Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Animal Sciences","degree_department":null,"school":null,"contributors":["Swanson, Kelly S","de Godoy, Maria R. C.","Parsons, Carl M.","Fahey, George C."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2025,"date_issued":"2025-04-23","date_published":"2025-04-23","updated_at":"2026-07-22T22:25:04Z","subjects":["canine nutrition","corn protein","corn fermented protein"],"languages":["en","eng"],"rights":["Copyright 2025 Christina Vogel"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/2142/129234","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Swanson, Kelly S","de Godoy, Maria R. C.","Parsons, Carl M.","Fahey, George C."]},{"key":"dc:creator","label":"Author","values":["Vogel, Christina Lynn"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2025-04-23","2025-05"]},{"key":"dc:type","label":"Dc Type","values":["text","Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Animal Sciences"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["canine nutrition","corn protein","corn fermented protein"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en","eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2025 Christina Vogel"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://hdl.handle.net/2142/129234"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms","The student, Christina Vogel, accepted the attached license on 2025-04-22 at 10:29.","The student, Christina Vogel, submitted this Thesis for approval on 2025-04-22 at 10:39.","This Thesis was approved for publication on 2025-04-23 at 07:40.","DSpace SAF Submission Ingestion Package generated from Vireo submission #21884 on 2025-10-19 at 18:09:39","Corn protein (CP), a co-product of the corn ethanol industry, is a sustainable protein source used in pet foods. The objectives of this study were to determine the palatability and apparent total tract digestibility (ATTD) of diets containing CP and to test the effects of CP-containing diets on the serum metabolites, hematology, and fecal characteristics, metabolites, and microbiota of healthy adult dogs. Ten female adult beagles (mean age: 6.12±1.39 yr; mean body weight: 9.33±1.04 kg) were used in a replicated 5x5 Latin square design (n=10/treatment). All dietary treatments were based on brewers rice, low-ash chicken byproduct meal, and chicken fat, and contained variable amounts of corn-based proteins: 0% (control), 15.3% corn gluten meal (CGM), 10.2% CGM + 5% CP (Low), 5.1% CGM + 10% CP (Medium), and 15% CP (High). The experiment was composed of five 28-day periods, with each consisting of a 22-day diet consumption period, a 5-day fecal collection period, and 1 day for blood collection. Data were analyzed statistically by Mixed Models using SAS 9.4, with P<0.05 accepted as being statistically significant. Two 2-day palatability studies (n=20 dogs) were also conducted to compare the High diet vs. control diet and High diet vs. CGM diet. Dogs were shown to prefer (P<0.05) the High diet over the control diet by a ratio of 1.8:1, but no preference was observed between the High and CGM diets. In the digestibility study, the ATTD of dry matter, organic matter, and energy increased (P<0.001) linearly with CP inclusion. The ATTD of fat was greater (P<0.001) for the control diet than for the CGM, Low, and High diets. Fecal scores were lower (P=0.05; firmer) and fecal dry matter percentage was higher (P<0.0001) in dogs fed CGM than those fed CP. Fecal phenol and indole, short-chain fatty acid, and branched-chain fatty acid concentrations were greater (P<0.05) in dogs fed CP than dogs fed CGM and control. Fecal bacterial diversity was not altered by diet, but the relative abundance of approximately 10 bacterial genera was altered by diet. In summary, our data demonstrate that the inclusion of CP in dog foods resulted in high diet palatability and macronutrient digestibility and altered microbial composition and activity."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Effects of corn protein inclusion on apparent total tract macronutrient digestibility, palatability, and fecal characteristics, microbiota, and metabolites of healthy adult dogs"]}]}],"canonical_facts":{"dc:contributor":["Swanson, Kelly S","de Godoy, Maria R. C.","Parsons, Carl M.","Fahey, George C."],"dc:creator":["Vogel, Christina Lynn"],"dc:date":["2025-04-23","2025-05"],"dc:description":["Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms","The student, Christina Vogel, accepted the attached license on 2025-04-22 at 10:29.","The student, Christina Vogel, submitted this Thesis for approval on 2025-04-22 at 10:39.","This Thesis was approved for publication on 2025-04-23 at 07:40.","DSpace SAF Submission Ingestion Package generated from Vireo submission #21884 on 2025-10-19 at 18:09:39","Corn protein (CP), a co-product of the corn ethanol industry, is a sustainable protein source used in pet foods. The objectives of this study were to determine the palatability and apparent total tract digestibility (ATTD) of diets containing CP and to test the effects of CP-containing diets on the serum metabolites, hematology, and fecal characteristics, metabolites, and microbiota of healthy adult dogs. Ten female adult beagles (mean age: 6.12±1.39 yr; mean body weight: 9.33±1.04 kg) were used in a replicated 5x5 Latin square design (n=10/treatment). All dietary treatments were based on brewers rice, low-ash chicken byproduct meal, and chicken fat, and contained variable amounts of corn-based proteins: 0% (control), 15.3% corn gluten meal (CGM), 10.2% CGM + 5% CP (Low), 5.1% CGM + 10% CP (Medium), and 15% CP (High). The experiment was composed of five 28-day periods, with each consisting of a 22-day diet consumption period, a 5-day fecal collection period, and 1 day for blood collection. Data were analyzed statistically by Mixed Models using SAS 9.4, with P<0.05 accepted as being statistically significant. Two 2-day palatability studies (n=20 dogs) were also conducted to compare the High diet vs. control diet and High diet vs. CGM diet. Dogs were shown to prefer (P<0.05) the High diet over the control diet by a ratio of 1.8:1, but no preference was observed between the High and CGM diets. In the digestibility study, the ATTD of dry matter, organic matter, and energy increased (P<0.001) linearly with CP inclusion. The ATTD of fat was greater (P<0.001) for the control diet than for the CGM, Low, and High diets. Fecal scores were lower (P=0.05; firmer) and fecal dry matter percentage was higher (P<0.0001) in dogs fed CGM than those fed CP. Fecal phenol and indole, short-chain fatty acid, and branched-chain fatty acid concentrations were greater (P<0.05) in dogs fed CP than dogs fed CGM and control. Fecal bacterial diversity was not altered by diet, but the relative abundance of approximately 10 bacterial genera was altered by diet. In summary, our data demonstrate that the inclusion of CP in dog foods resulted in high diet palatability and macronutrient digestibility and altered microbial composition and activity."],"dc:format":["application/pdf"],"dc:identifier":["https://hdl.handle.net/2142/129234"],"dc:language":["en","eng"],"dc:rights":["Copyright 2025 Christina Vogel"],"dc:subject":["canine nutrition","corn protein","corn fermented protein"],"dc:title":["Effects of corn protein inclusion on apparent total tract macronutrient digestibility, palatability, and fecal characteristics, microbiota, and metabolites of healthy adult dogs"],"dc:type":["text","Thesis"],"thesis:degree_discipline":["Animal Sciences"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["M.S."],"thesis:institution_name":["University of Illinois Urbana-Champaign"]},"updated_at":"2026-07-22T22:25:04Z"}