The available supply of domestic goat meat has not matched the increased demand for goat meat. High cost of production is a concern of goat producers, with feed being a major factor in input expenses. Increasing slaughter weight of kid meat goats would increase the available goat meat, but requires added nutrition beyond that obtained from typical forage based systems for goat production. Savannah bucklings (n=31) and Boer bucklings (n=28) were stratified by weight and breed and were randomly assigned a treatment of 0 (T1), 15 (T2), 30 (T3), or 45 (T4) percent dried distillers grain with solubles (DDGS). One goat from each pen was harvested on day 0 (H1), and every 21 days (H2, H3, H4) so that equal numbers of goats from each breed were sacrificed each harvest time. Bucklings and feed refusal were weighed weekly. Data was analyzed for ANOVA using Proc Mixed for fixed effects of treatment, harvest time and breed. There were no significant interactions for any traits measured. Breed did not affect (P>0.05) live performance, carcass traits, or cutability. Average daily gains (ADG) tended to linearly decrease with inclusion of DDGS, but significant difference were only observed in the second 21 days with T4 goats having the lowest (P<0.05) ADG. Treatment had no effect on feed efficiency. Goats in H4 had the highest (P<0.05) 1 and 3-hour temperatures and goats in H1 had the lowest (P<0.05) 1 and 3-hour pH values. The H4 carcasses had the largest ribeye areas and heaviest weights for most primal cuts. Carcasses and most primal cut weights of T4 goats were lighter (P<0.05) than those of goats in T1 and T2. Percentage of primal cuts in relation to the cold carcass did not differ (P>0.05) for treatments, but were influenced by harvest time. Warner-Bratzler shear force did not differ (P>0.05) for treatments and harvest time. The level and length of time feeding DDGS can affect goat carcass characteristics. This study found no differences in live traits, carcass characteristics, or meat from Boer- and Savannah-cross buckling kid goats.
| Identifer | oai:union.ndltd.org:LSU/oai:etd.lsu.edu:etd-07082015-223841 |
| Date | 16 July 2015 |
| Creators | Maynard, James Neil |
| Contributors | Bidner, Thomas, McMillin, Kenneth, Hutchison, Charles |
| 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-07082015-223841/ |
| 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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