U.S. flagAn official website of the United States government
                    Here's how you know **Official websites use .gov**
                            
                            A **.gov** website belongs to an official government organization in the United States.
 **Secure .gov websites use HTTPS**
                            
                            A **lock** (                            
                              A locked padlock                                                      
                            
                            ) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.


Menu Agricultural Research Service
						
                    U.S. DEPARTMENT OF AGRICULTURE
 close



Research
                Research Home
                            National Programs
                            Research Projects
                            Scientific Manuscripts
                            International Engagement
                            Scientific Software/Models
                            Databases and Datasets
                            Office of Scientific Quality Review
            Media
                News & Features
                            Multimedia
                            Briefing Room
                            Down on the Farm
                            Press Room
                            Science in Your Shopping Cart
                            Scientific Discoveries
                            Tellus
                            Under the Microscope
            About ARS
                About ARS Home
                            Staff Directory
                            Labs and Research Centers (Map)
                            Headquarter Offices
                            Organizational Chart
                            Employee Services (REE Employees Only)
                            Office of Outreach, Diversity, and Equal Opportunity
            Work With Us
                Work With Us Home
                            ARS Vacancies at USAJOBS
                            Careers at ARS Information
                            Scientific Collaborations
                            Extramural Agreements
                            1890 Faculty Research Sabbatical ProgramSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home Research Publications at this Location





- ARS National Programs
- Search for a scientific manuscript
- Search for a research project
- ARS Software
- Programs and Projects
- Collaborations
- Subjects of Investigation
- Publications

Title:   Author  item
                                            GAINES, A - UNIV. OF MISSOURIitem
                                            ALLEE, G - UNIV. OF MISSOURIitem
                                            Carroll, Jeffery

                                                         - *Jeff Carroll*item
                                            FRANK, J - UNIV. OF MISSOURIitem
                                            KENDALL, D - UNIV. OF MISSOURIitem
                                            SPENCER, J - UNIV. OF MISSOURIitem
                                            YI, G - UNIV. OF MISSOURI
  Submitted to: Journal of Animal Science Supplement
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 7/21/2002
                                    Publication  Date: N/A
                                    Citation: N/AInterpretive Summary:
                                Technical Abstract: A trial using 64 weanling pigs (TR4 x PIC C22) was conducted to determine the effects of menhaden fish oil supplementation and diet complexity on performance and immune response of nursery pigs.  Pigs (17 d and 6.27±1.16 kg) were weaned into a SEW facility and given free access to a complex diet for 7 d postweaning.  At d 0 (d 7 postweaning), pigs were blocked by weight and allotted to 64 pens.  Treatments (Trt) were arranged as a 2×2×2 factorial arrangement.  Main effects included diet (complex vs simple), oil (menhaden fish [MFO] vs corn [CO]), and immunogen (saline vs lipopolysaccharide [LPS]).  Experimental diets contained 6% oil (6% CO or 5% MFO + 1% CO) and were fed for 14 d.  On d 12, i.v. injections of either LPS (100 μg/kg) or saline were given, followed by blood collection at 30 min intervals for 6 hr.  After the immune challenge (d 14), pigs were placed onto a common corn-soybean meal fortified diet and growth performance was evaluated until termination of the study (d 28).  Pigs were weighed and feed intakes recorded at 7, 14, and 28 d.  Prior to immune challenge (d 12), there were differences in BW for pigs fed complex vs. simple diets (P < 0.01; 13.1 and 12.1 kg, respectively) and pigs fed CO vs. MFO diets (P < 0.05; 12.9 and 12.3 kg, respectively.) During the challenge period, for pigs treated with LPS there was a Time × Immunogen × Oil effect (P < 0.04) for serum cortisol with MFO fed pigs having lower serum cortisol as compared to CO fed pigs.  Peak serum cortisol for LPS-treated pigs was 174.1 ng/ml at 3 hr post-challenge for MFO fed pigs and 234.2 ng/ml at 4 hr for CO fed pigs.  At d 14 and 28, there were no differences (P > 0.05) in BW, except for pigs challenged with LPS.  This study suggests, that by d 7 postweaning, pigs can be placed on a simplified diet without affecting performance and that menhaden fish oil supplementation may provide immunological protection.


Return to top


Connect with ARS Sign up


ARS Home
                            USDA.gov
                            Plain Writing
                            Policies & Links
                            Civil Rights Statements
                            FOIA
                            Accessibility Statement
                            Privacy Policy
                            Non-Discrimination Statement
                            Quality of Information
                            USA.gov
                            WhiteHouse.gov