The purpose of this research was to determine the optimal level of crystalline amino acid (AA) supplementation that supports maximum growth performance in broilers, and to determine the Gly requirement in broilers. Treatments were replicated with a minimum of 7 pens with 6 broilers per pen. Experiments (Exp.) were conducted from 0- to 18- days (d) post-hatching in brooder batteries. Three Exp. were conducted to determine the maximum level of L-Lysâ¢HCl that could be supplemented to corn-soybean meal (C-SBM) diets without negatively affecting growth performance of broilers. The results of these Exp. indicate that broilers can achieve maximum growth performance when fed a C-SBM diet supplemented with 0.25% L-Lysâ¢HCl. Two Exp. were conducted to determine the fifth, sixth, and seventh limiting AA in a low crude protein (CP), C-SBM diet in broilers. The results of these Exp. indicate that Arg and Val may be equally limiting followed by Ile in a C-SBM diet supplemented with DL-Met, L-Lysâ¢HCl, L-Thr, and Gly. Three Exp. were conducted to determine the Gly requirement of broiler chicks fed a low CP, AA-supplemented diet. The results of this research indicate that 2.078% total Gly + Ser is required for broilers fed a C-SBM diet supplemented with 0.25% L-Lysâ¢HCl.
| Identifer | oai:union.ndltd.org:LSU/oai:etd.lsu.edu:etd-11142007-170943 |
| Date | 15 November 2007 |
| Creators | Waguespack, April Marie |
| Contributors | Cathleen C. Williams, Thomas D. Bidner, L. Lee Southern |
| Publisher | LSU |
| Source Sets | Louisiana State University |
| Language | English |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lsu.edu/docs/available/etd-11142007-170943/ |
| Rights | unrestricted, I hereby certify that, if appropriate, I have obtained and attached herein a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to LSU or its agents the non-exclusive license to archive and make accessible, under the conditions specified below and in appropriate University policies, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report. |
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