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
 Livestock Issues Research: Lubbock, TX
 close



    Research

                    Research Projects
                                    Publications
                                    Collaborations
                                    News
                People

                    Staff Listing
                                    Careers


        


                    NewsletterSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home Plains Area Lubbock, Texas Cropping Systems Research Laboratory Livestock Issues Research 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
                                            CAMPISTOL, C - University Of Tennesseeitem
                                            KATTESH, H - University Of Tennesseeitem
                                            WALLER, J - University Of Tennesseeitem
                                            RAWLS, E - University Of Tennesseeitem
                                            ARTHINGTON, J - University Of Floridaitem
                                            ENGLE, T - Colorado State Universityitem
                                            Carroll, Jeffery

                                                         - *Jeff Carroll*
  Submitted to: Journal of Animal Science Supplement
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 7/11/2010
                                    Publication  Date: 10/11/2010
                                    Citation: Campistol, C., Kattesh, H.G., Waller, J.C., Rawls, E.L., Arthington, J.D., Engle, T.E., Carroll, J.A. 2010. Effects of two-stage and total vs. fence-line weaning on the physiology and performance of beef calves [abstract]. 2010 American Society of Animal Science Meeting, Jul 11-15, 2010, Denver, CO.  Journal of Animal Science. 88(E-Supplement 2):M281.Interpretive Summary:
                                Technical Abstract: Calves weaned using a two-stage method where nursing is prevented between cow-calf pairs prior to separation (Stage 1) experience less weaning stress after separation (Stage 2) based on behavior and growth measures. The aim of this study was to document changes in various physiological measures of stress in calves weaned using the two-stage with total separation or temporary fence-line contact. Steer calves (n = 48; 314.1 ± 20.5 kg), housed on pasture with their dams, were blocked by initial BW and assigned randomly during Stage 1 to be fitted with a nose-flap weaning device (YD) or no device (ND) for 7 d preweaning. During Stage 2, calves (12 YD and 12 ND/group) were weaned by fence-line (Group 1) or total separation to a distant pasture (Group 2). After 7 d, Group 1 calves were moved to a pasture lot adjoining Group 2. Calves were weighed and bled on d -7, 0, 3, 7 (d of weaning), 10, 14, 21, and 42, and injected with ovalbumin on d 0. Blood was analyzed for total cortisol, IgG to ovalbumin, interferon-gamma (IFN), haptoglobin (HAP), ceruloplasmin (CER), hematocrit (Hct), and neutrophil:lymphocyte ratio (N:L). Weight gain was similar (P = 0.74) among steers regardless of Stage 1 treatment. The YD calves had higher (P < 0.05) Hct than ND calves during Stage 1. Weight gain was greater (P < 0.01) in Group 1 versus Group 2 on d 14-42. Ovalbumin-specific IgG increased (P < 0.01) in all calves by d 10 unrelated to Stage. Both HAP and CER increased (P < 0.01) by d 3 in response to ovalbumin. Between d 7 and 10, CER, IFN, and N:L increased (P < 0.05) in ND but not YD calves. In conclusion, two-stage weaning may improve calf well-being when fence-line separation is employed.


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