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 stand for a higher rate of acticity and disturbance in group suckling systems. The nearly same level of agonistic behaviour rates between sows grouped at three or grouped at six indicates that both group sizes are practicable. However the behaviour-related results (Table 3-5) emphasize that there were behavioural adaptations of the sows but these adaptations did not negatively affect the piglets live weight gain, health status and loss rates. It is concluded that group housing is practicable for organic lactating sows. The strict obedience of the above mentioned grouping rules (≤ 5 days between piglets’ grouping age, no grouping of diseased sows and no primiparous sow alone with multiparous sows) is essential for a successful implementation. Suggestions to tackle the future challenges of organic animal husbandry The present paper will contribute to improve animal welfare in organic animal production systems. References D’Eath RB (2005): Socializing piglets before weaning improves social hierarchy formation when pigs are mixed post-weaning. Applied Animal Behavior Science 93(3/4): 199-211 Rist M (1989): Artgemäße Nutztierhaltung: ein Schritt zum wesensgemäßen Umgang mit der Natur. Verlag Freies Geistesleben, Stuttgart Weary DM, Pajor EA, Bonenfant M, Fraser D, Kramer DL (2002): Alternative housing for sows and litters; Part 4. Effects of sow-controlled housing combined with a communal piglet area on pre- and postweaning behaviour and performance. Applied Animal Behaviour Science 76:279-290 Weber R (2000): Gruppensäugen im Abferkelstall. FAT Berichte Nr. 549, Eidgenössische Forschungsanstalt für Agrarwirtschaft und Landtechnik (FAT) Weber R (2001): Der Einfluss des Gruppensäugens im Abferkelstall auf die Leistungen, das Säugeverhalten und die Investitionskosten im Vergleich zur ausschließlichen Haltung in Einzelabferkelbuchten. In: 5. Int. Tagung Bau, Technik und Umwelt in der landwirtschaftlichen Nutztierhaltung, S. 308-313, Hohenheim Wülbers-Mindermann M (1992): Characteristics of cross-suckling piglets reared in a group housing system. Specialarbete 13, Swedish University of Agricultural Sciences, Skara 288
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 A study on four feeding strategies of 100% organic origin for piglets concerning performance, health status, losses and economy in organic agriculture FRIEDRICH WEIßMANN, RALF BUSSEMAS, ANNA FALK Thuenen-Institute of Organic Farming, Westerau, Germany, www.oel-vti.de, friedrich.weissmann@vti.bund.de Abstract Organic agriculture is defined as a low-external-input-system but piglets’ necessity for high quality diets seems to contradict low-external-input feeding strategies. Hence, a total of 361 piglets was tested from day 14 – 63 post natum concerning performance, health status, losses and diet costs by means of four feeding strategies of 100% organic origin: (i) high-external-input diet, (ii) mediumexternal-input diet, (iii) low-external-input diet, each with grass-clover-silage as roughage source, and (iv) above mentioned low-external-input diet with straw replacing grass-clover-silage. The high-external-input-diet achieved the significantly highest live weight gain; all other strategies were similar at a lower level. There were no differences in health status and loss rates between the four strategies. Low-input-strategies were economical at best in producing a standardized 20 kg piglet. A verification of the results is necessary with a higher number of piglets for a final recommendation. Key words: piglets, 100% organic feeding, performance, health, losses, economy Introduction Organic agriculture is characterized as a low-external-input-system (Conway 1987). Hence, livestock’s nutrient supply should be of predominantly farm-own production and of complete organic origin (Weißmann 2011). But this approach seems to be problematically for piglets due to their high nutrient requirement and simultaneous lack of organic feed with high protein quality (Zollitsch 2007). It is the aim of the following study to test a 100% organic low-external-input feeding strategy without lowering piglets’ performance and health status. Material and methodology The four feeding strategies consisted of (i) a high-external-input diet (HID), (ii) a medium-externalinput diet (MID), (iii) a low-external-input diet (LID), each with grass-clover-silage as roughage source, and (iv) LID with straw replacing grass-clover-silage (Table 1). Concentrates and roughage were offered ad libitum in the form of a one-phase diet during the whole trial period. The amount of concentrates was recorded as offered to (not consumed by!) the piglets; the amount of roughage had not been recorded. Piglets were of modern hybrid genetic origin. The trial with a total of 361 piglets started 14 days post natum and ended at day 63 p. n. with a suckling period of 49 days. Data recording included live weight development (weekly weighing), health status (documentation of diseases), losses (documentation) and diet costs (monetized amount of offered concentrates). The data of growth performance were statistically analyzed with the analysis of variance procedure GLM of SAS Version 9.2 using fixed effects (i. a. the four feeding strategies, piglets’ sex, sow parity factor) and co-variables (i. a. piglets’ live weight at trial onset, litter size at birth and at trial onset). The LSQ-Means were statistically compared using the Tukey-Kramer-Test at 5% significance level. 289
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Sonderheft 362 Special Issue Tackli
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Foreword Organic animal husbandry s
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Content RAHMANN G & GODINHO D (Ed.)
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Introduction RAHMANN G & GODINHO D
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Abstract RAHMANN G & GODINHO D (Ed.
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Factors Plant Height (cm) RAHMANN G
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