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    Delaying pigs from the normal production flow is associated with health problems and poorer performance

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    Author
    Calderón Díaz, Julia A.
    Diana, Alessia
    Boyle, Laura
    Leonard, Nola
    McElroy, Máire
    McGettrick, Shane
    Moriarty, John
    Garcia Manzanilla, Edgar
    Keyword
    All-in/all-out
    Performance
    Pigs
    Production flow
    Respiratory diseases
    Date
    2017-07-05
    
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    URI
    http://hdl.handle.net/11019/1191
    Citation
    Calderón Díaz JA, Diana A, Boyle LA, Leonard FC, McElroy M, McGettrick S, Moriarty J, García Manzanilla E. Delaying pigs from the normal production flow is associated with health problems and poorer performance. Porcine Health Management 2017;3(1):13; doi 10.1186/s40813-017-0061-6
    Abstract
    Background Delaying pigs from advancing through the production stages could have a negative impact on their health and performance. The objective of this study was to investigate the possible implications of delaying pigs from the normal production flow on pig health and performance in a farrow-to-finish commercial farm with a self-declared All-In/All-Out (AIAO) management. Results Three flows of pigs were defined, flow 1 (i.e. pigs that followed the normal production flow; 8 weeks in the nursery stage, 4 weeks in the growing stage and 8 weeks in the finisher stage), flow 2 (i.e. pigs delayed 1 week from advancing to the next production stage) and flow 3 (i.e. pigs delayed >1 week from advancing to the next production stage). Flow 3 included higher proportions of pigs from first parity sows and of lighter birth weights. When the 3 flows were matched by parity and birth weight, pigs in flow 2 were 3.8 times more likely to be lame prior to slaughter compared with pigs in flow 1. Similarly, pigs in flow 3 were more likely to be lame prior to slaughter, 4.5 times more likely to present pleurisy, 3.3 times more like to present pericarditis and 4.3 times more likely to have their heart condemned at slaughter compared with pigs in flow 1. Additionally, carcasses from pigs in flow 3 were 10 kg lighter compared with carcasses from pigs in flow 1. Conclusion Delayed pigs were more affected by disease and were lighter at slaughter. Besides animal welfare issues, these findings could represent considerable economic loses for pig producers. In practice, delaying pigs from the normal production flow translates into higher feeding costs, increase number of days to slaughter and increased labour requirements reducing production efficiency for the pig operation. In farrow-to-finish farms an ‘all-forward’ policy (i.e. no pig is left behind from stage to stage and a split marketing approach is applied when sending pigs to slaughter) might be more easily adhered to.
    Funder
    Department of Agriculture, Food and the Marine; Teagasc Walsh Fellowship Programme
    Grant Number
    14/S/832
    ae974a485f413a2113503eed53cd6c53
    http://dx.doi.org/10.1186/s40813-017-0061-6
    Scopus Count
    Collections
    Pig Development
    Teagasc publications in Biomed Central

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