Document Detail

Effects of exogenous emulsifiers and fat sources on nutrient digestibility, serum lipids, and growth performance in weanling pigs.
MedLine Citation:
PMID:  1459909     Owner:  NLM     Status:  MEDLINE    
Three experiments were conducted to determine whether emulsifiers improve utilization of fat from diets for early-weaned pigs. In Exp. 1, 96 weanling pigs (17 d old) were used in metabolism cages, with main effects of fat source (soybean oil, tallow, lard, and coconut oil) and emulsifier treatment (no emulsifier, lecithin, and lysolecithin as 10% of the added fat). Soybean oil and coconut oil were more digestible than tallow and lard (P < .001). Tallow was more digestible when lecithin and lysolecithin were added (P < .007), and pigs fed lecithin had lower serum triglycerides and cholesterol than pigs fed lysolecithin (P < .03). In Exp. 2, 270 weanling pigs (21 d old) were used in a growth assay. Treatments were 1) control diet; 2) Diet 1 with soybean oil; 3) Diet 1 with tallow; 4, 5, and 6) Diet 3 with lecithin replacing 5, 10, and 30% of the tallow, respectively; and 7, 8, and 9) Diet 3 with lysolecithin replacing 5, 10, and 30% of the tallow, respectively. At d 14 of the experiment, digestibility of tallow was improved more by lecithin than lysolecithin (P < .008). For the total experiment (d 0 to 35), the control pigs had poorer gain:feed ratio than did the pigs fed the fat sources (P < .002). In Exp. 3, 420 weanling pigs (21 d old) were used. Treatments were 1) control diet with soybean oil; 2) Diet 1 with tallow; and 3, 4, and 5) Diet 2 with 10% of the added fat as soybean oil, lecithin, or monoglyceride, respectively. Adding soybean oil, lecithin, and monoglyceride to tallow increased digestibility of total fat (P < .07). From d 0 to 14, pigs fed soybean oil gained weight faster than pigs fed the other treatments (P < .06), and pigs fed tallow without emulsifiers had the lowest ADG. Considering all experiments, addition of emulsifiers increased digestibility of nutrients but had minimal effect on growth performance.
D B Jones; J D Hancock; D L Harmon; C E Walker
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of animal science     Volume:  70     ISSN:  0021-8812     ISO Abbreviation:  J. Anim. Sci.     Publication Date:  1992 Nov 
Date Detail:
Created Date:  1993-01-08     Completed Date:  1993-01-08     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  8003002     Medline TA:  J Anim Sci     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  3473-82     Citation Subset:  IM    
Department of Animal Sciences and Industry, Kansas State University, Manhattan 66506-0201.
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MeSH Terms
Animal Feed
Cholesterol / blood
Dietary Fats / metabolism*
Excipients / pharmacology*
Fats / chemistry,  metabolism
Fatty Acids / analysis
Lipids / blood*
Phosphatidylcholines / chemistry
Plant Oils / chemistry,  metabolism
Random Allocation
Soybean Oil / chemistry,  metabolism
Swine / blood,  growth & development,  physiology*
Triglycerides / blood
Weight Gain
Reg. No./Substance:
0/Dietary Fats; 0/Excipients; 0/Fats; 0/Fatty Acids; 0/Lipids; 0/Phosphatidylcholines; 0/Plant Oils; 0/Triglycerides; 57-88-5/Cholesterol; 61789-97-7/tallow; 61789-99-9/lard; 8001-22-7/Soybean Oil; 8001-31-8/coconut oil

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

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