University of Illinois Urbana-Champaign

Nutritional evaluation of canola meal produced from a new variety of canola seeds in broiler chickens and laying hens

Gorski, Matthew Francis

Content Files
GORSKI-THESIS-2015.pdf

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https://hdl.handle.net/2142/78463

Description

Title
Nutritional evaluation of canola meal produced from a new variety of canola seeds in broiler chickens and laying hens
Author(s)
Gorski, Matthew Francis
Issue Date
2015-04-24
Department of Study
Animal Sciences
Discipline
Animal Sciences
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Date of Ingest
2015-07-22T22:17:25Z
Keyword(s)
  • canola meal
  • chickens
Abstract
Four precision-fed rooster assays, two broiler chicken experiments and one laying hen experiment were conducted. The four precision-fed rooster assays were used to determine the values of MEn using conventional roosters and ileal digestible amino acid values using cecectomized roosters. The first experiment evaluated a conventional canola meal (Conv CM) in broiler chicken diets from 2 to 37 days of age. Treatments were replicated eight times using five chickens per replicate. Treatment diets were corn and soybean meal based and contained 0, 10, 20, 30 or 40% Conv CM from 2 to 21d of age and 0, 10, 20 or 30% Conv CM from 21 to 37d of age. In the starter phase (d 2 to 21), there was a significant negative effect (P<0.05) in weight gain and feed intake for CM levels in excess of 10% CM. The second broiler experiment evaluated both Conv CM and a new increased protein: reduced fiber Test CM. Seven treatments were replicated eight times using five chickens per replicate. For the starter phase (2 to 19d), the Treatment 1 diet contained no CM, Treatment 2-4 diets contained 8% Test CM and Treatment 5-7 diets contained 8% Conv CM. At day 20, chicks were switched to grower diets which contained either no CM or 8, 16, or 24% of test CM or Conv CM. These diets were fed until 44 d of age. There were no significant differences among dietary treatments in weight gain, feed intake, or feed efficiency for either phase of the experiment. The third experiment examined the effects of the new test CM and Conv CM in laying hen diets from 33 to 49 weeks of age. Seven treatments were replicated eight times using 14 caged hens per replicate. Corn-soybean meal diets again contained either no CM or 8, 16, or 24% Test CM or Conv CM. No significant differences were observed among treatments for feed intake, egg production, egg weight, egg mass, feed efficiency, or body weight change over the duration of the experiment. The results of these experiments indicate that a new increased protein; reduced fiber Test CM can be used effectively in broiler chicken and laying hen diets when diets are formulated to be equal in ME and digestible amino acids.
Graduation Semester
2015-5
Type of Resource
text
Permalink
http://hdl.handle.net/2142/78463
Copyright and License Information
Copyright 2015 Matthew Gorski

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Graduate Dissertations and Theses at Illinois PRIMARY
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Dissertations and Theses - Animal Sciences