Tackling the future challenges of Organic Animal Husbandry - vTI

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! Agriculture and Forestry Research, Special Issue No 362 (Braunschweig, 2012) ISSN 0376-0723 Download: www.vti.bund.de/en/startseite/vti-publications/landbauforschung-special-issues.html seaweed meal (SW), natural vitamin E (natE), synthetic vitamin E (syntE) or without any supplementation (C). In the SW concentrate the seaweed meal added up to 4.4 % of the total DM intake. The trial lasted the entire eight month indoor feeding period. The concentrates were analysed for α-tocopherol (Jensen and Nielsen, 1996) and the nutrient elements Na, Se, As and I. Production of specific antibodies and cell mediated immunity following immunization, production of antibodies against environmental microbes and the immunoglobulin concentration in the mothers and the lambs were registered, as well as the mitogen and antigen induced lymphocyte proliferation (Table 1). Table 1: Overview of immunological parameters measured in the feed trial Ewes Lambs Specific antibodies after vaccination (Tetanus toxoid, Mannheimia haemolytica, equine herpes- and influenza virus) Antibodies against environmental bacteria (M. haemolytica) Immunoglobulin concentration in blood and colostrum (IgG, IgM) Results 208 Specific antibodies after vaccination (Diphtheria toxoid) Antibodies against environmental bacteria (M. haemolytica) Cell mediated immunity after vaccination with Mycobacterium bovis (IFNγ) Transfer of maternal immunity (equine herpes- and influenza virus, tetanus toxoid, IgG, IgM) Production of immunoglobulin (IgG, IgM) Mitogen and antigen induced lymphocyte proliferation The ewes consuming the SW and C concentrates had lowest daily intake of α-tocopherol and SW highest intake of As and I (Table 2). Table 2: Weighted mean daily intake of α-tocopherol, Na, Se, As and I SW syntE natE C α-tocopherol (mg/day) 28 138 72 21 Na (g/day) 44 42 40 38 Se (mg/day) 0.55 0.45 0.43 0.38 As (mg/day) 3.30 0.57 0.56 0.56 I (mg/day) 51.3 2.74 2.52 2.25 The serum IgG concentration in the ewes in the SW group was 37 mg/ml. This concentration was significantly lower (P
RAHMANN G & GODINHO D (Ed.) (2012): Tackling the Future Challenges of Organic Animal Husbandry. Proceedings of the 2 nd OAHC, Hamburg/Trenthorst, Germany, Sep 12-14, 2012 Table 3: Mean values of IFNγ (ng/ml) four weeks after vaccination with M. bovis SW syntE natE C P IFNγ 2.4 5.1 8.0 2.6 * * significant at P
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Sonderheft 362 Special Issue Tackli
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Landbauforschung vTI Agriculture an
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Foreword Organic animal husbandry s
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RAHMANN G & GODINHO D (Ed.) (2012):
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Content RAHMANN G & GODINHO D (Ed.)
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Introduction RAHMANN G & GODINHO D
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References RAHMANN G & GODINHO D (E
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Abstract RAHMANN G & GODINHO D (Ed.
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Discussion RAHMANN G & GODINHO D (E
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Factors Plant Height (cm) RAHMANN G
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Conclusions RAHMANN G & GODINHO D (
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Results RAHMANN G & GODINHO D (Ed.)
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Kg liveweight (mean) RAHMANN G & GO
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Results RAHMANN G & GODINHO D (Ed.)
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348 Herwart Böhm (Hrsg.) (2011) Op
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