University of SaskatchewanHARVEST
  • Login
  • Submit Your Work
  • About
    • About HARVEST
    • Guidelines
    • Browse
      • All of HARVEST
      • Communities & Collections
      • By Issue Date
      • Authors
      • Titles
      • Subjects
      • This Collection
      • By Issue Date
      • Authors
      • Titles
      • Subjects
    • My Account
      • Login
      JavaScript is disabled for your browser. Some features of this site may not work without it.
      View Item 
      • HARVEST
      • Electronic Theses and Dissertations
      • Graduate Theses and Dissertations
      • View Item
      • HARVEST
      • Electronic Theses and Dissertations
      • Graduate Theses and Dissertations
      • View Item

      YELLOW MEALWORM LARVAE (TENEBRIO MOLITOR) GROWN ON DEOXYNIVALENOL-CONTAMINATED WHEAT AS A FEED INGREDIENT FOR BROILER CHICKENS

      Thumbnail
      View/Open
      DUHRA-THESIS-2021.pdf (585.3Kb)
      Date
      2020-11-17
      Author
      Duhra, Dilshaan
      ORCID
      https://orcid.org/0000-0002-8469-901X
      Type
      Thesis
      Degree Level
      Masters
      Metadata
      Show full item record
      Abstract
      The purpose of this project was to determine if yellow mealworm larvae (YML) grown on wheat contaminated with a high concentration of deoxynivalenol (DON) would affect broiler chicken performance. The YML were grown in containers of wheat that contained either low (LDW; <1,000 µg/kg) or high DON (HDW; 30,730 µg/kg). The DON concentration in the dried insect meals were 0 or 17.5 µg/kg for YML grown on LDW and HDW, respectively. Seventy-five male Ross 708 broilers were randomly placed into 15 cages and reared on one of three diets from day 1-35 (five replications/treatment). At day 14, bird numbers were reduced to four birds/replication. The diets consisted of a control containing no YML meal (CD) and two diets containing 5% that were grown on either LDW (LMD) or HDW (HMD). The diets were formulated to meet Ross 708 2019 performance standards and fed as a mash in two phases: starter/grower (0-21 days) and finisher (21-35 days). Titanium dioxide was included as a marker in the finisher diets to allow the measurement of crude protein (CP) and dry matter (DM) digestibility. Excreta was collected on days 33 and 34. Feed intake (FI) and body weight (BW) were measured over the duration of the experiment and used to calculate feed conversion ratio (FCR). On day 35, all birds were slaughtered and dissected to collect weights of the breasts, thighs, drums, wings, abdominal fat pads, liver, spleen, bursa of Fabricius, and gastrointestinal tract organs. A one-way ANOVA was used to assess the effect of diet on digestibility, performance, and carcass traits. Crude protein retention was higher in the LMD and HMD treatments compared to CD (68.17, 68.61, 66.17 respectively (P = 0.0091)). Dry matter retention was higher in the HMD diet compared to the CD and LMD diets (76.80, 74.93, 74.88 respectively; P = 0.0046)). Feed intake was lower in birds fed HMD compared to CD and LMD (2469.0, 2709.1, 2762.4 respectively; P = 0.0031)). The fatty acid profiles of the broilers fed diets containing YML differed from those on the CD (P < 0.05). Diet inclusion of YML did not affect the growth, meat yield or organ weights of the birds. The YML reared on DON-contaminated wheat (up to 30,730 ug/kg) and included in broiler diets at 5% could be an effective means of converting salvage wheat into a safe and sustainable source of protein.
      Degree
      Master of Science (M.Sc.)
      Department
      Animal and Poultry Science
      Program
      Animal Science
      Supervisor
      Buchanan, Fiona; Schwean-Lardner, Karen
      Committee
      Hogan, Natacha; Newkirk, Rex; Brook, Ryan; Kiarie, Elijah
      Copyright Date
      May 2021
      URI
      http://hdl.handle.net/10388/13132
      Subject
      broiler chickens
      Insects
      yellow mealworm
      deoxynivalenol
      feed
      Collections
      • Graduate Theses and Dissertations
      University of Saskatchewan

      University Library

      © University of Saskatchewan
      Contact Us | Disclaimer | Privacy