Document Detail


Effects of crude glycerin on performance and carcass characteristics of finishing wether lambs.
MedLine Citation:
PMID:  20154165     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The objective of this study was to evaluate the effects of crude glycerin on performance and carcass characteristics in finishing wether lambs. Thirty black-faced, Suffolk-cross wether lambs (44.1 +/- 5.6 kg initial BW) were stratified and blocked by BW to 1 of 5 individually fed, isocaloric, isonitrogenous dietary treatments containing 0, 5, 10, 15, or 20% crude glycerin (88% pure) on a DM basis. Diets were fed once daily for ad libitum consumption and contained 15% chopped hay, approximately 25% dried distillers grains with solubles, and the specified treatment combination of cracked corn replaced with increasing amounts of crude glycerin. Wethers were weighed on 14-d intervals and were selected for slaughter when they reached an approximate 12th-rib fat depth of 0.51 cm (28 to 84 d on trial). Carcass characteristics were collected after a 48-h chill. Dry matter intake (linear, P = 0.004) and ADG (quadratic, P = 0.05) increased with increasing concentrations of glycerin in the diet during the first 14 d of the feeding period. Similarly, G:F tended to increase quadratically (P = 0.06) with increasing concentrations of crude glycerin in the diet during the first 14 d. However, there were no differences among treatments for final BW, days on feed, or cumulative DMI, cumulative ADG, and cumulative G:F (P >or= 0.11). Body wall thickness, dressing percent, HCW, LM area, flank streaking, leg score, conformation score, quality grade, yield grade, and percent boneless, closely trimmed retail cuts did not differ (P >or= 0.21). Adding up to 15% crude glycerin to finishing wether diets improved feedlot performance, particularly during the first 14 d, without any concomitant effect on carcass characteristics.
Authors:
P J Gunn; M K Neary; R P Lemenager; S L Lake
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial     Date:  2010-02-12
Journal Detail:
Title:  Journal of animal science     Volume:  88     ISSN:  1525-3163     ISO Abbreviation:  J. Anim. Sci.     Publication Date:  2010 May 
Date Detail:
Created Date:  2010-04-15     Completed Date:  2010-07-20     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8003002     Medline TA:  J Anim Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1771-6     Citation Subset:  IM    
Affiliation:
Department of Animal Sciences, Purdue University, West Lafayette, IN 47907, USA.
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MeSH Terms
Descriptor/Qualifier:
Adipose Tissue
Animal Feed / analysis
Animal Nutritional Physiological Phenomena
Animals
Body Composition / drug effects*
Diet / veterinary
Dietary Supplements
Dose-Response Relationship, Drug
Glycerol / administration & dosage,  pharmacology*
Male
Muscle, Skeletal
Sheep / growth & development*,  physiology*
Chemical
Reg. No./Substance:
56-81-5/Glycerol

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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