PMID: 11325183Apr 28, 2001Paper

Effect of group size and feeder type on growth performance and feeding patterns in growing pigs

Journal of Animal Science
Y Hyun, M Ellis

Abstract

The effects of four group sizes (2, 4, 8, and 12 pigs per pen) and two single-space feeder types (conventional and electronic feed intake recording equipment [FIRE]) on feed intake, growth performance, and feeding patterns were determined in growing pigs over a 4-wk period. A total of 416 hybrid pigs (barrows and gilts) were grown from 26.5 (SD = 1.6) to 47.8 (SD = 2.7) kg BW and given ad libitum access to a corn-soybean meal-based diet (17.4% CP; 0.9% lysine; 3,298 kcal ME/kg). The floor space allowance was 0.9 m2/pig for all treatments. Pigs using the electronic feeders had similar growth rates but lower feed intakes (P < 0.01) and higher gain:feed ratios (P < 0.01) compared to those using the conventional feeders. Barrows compared to gilts had higher growth rates (P < 0.05), numerically higher (P > 0.05) ADFI, and similar feed efficiency and feeding pattern. Feed intakes and growth rates were lowest (P < 0.05) for groups of 12 pigs but gain:feed ratio was not affected by group size. Daily feeder occupation time per pig was lower (P < 0.01) for groups of 12 than for groups of 2 or 4 pigs, and feed consumption rate was higher (P < 0.01) for groups of 12 than for groups of 4 pigs. The proportion of time spent eating was lower (...Continue Reading

Citations

Dec 18, 2003·Journal of Animal Science·I J WellockI Kyriazakis
May 1, 2010·Animal : an International Journal of Animal Bioscience·X AverósM C Meunier-Salaün
Aug 26, 2015·Animal : an International Journal of Animal Bioscience·S E K Meyer-HammeM Gauly
Mar 3, 2018·Journal of Applied Animal Welfare Science : JAAWS·Yijie HeYuzhi Z Li
Aug 24, 2018·Journal of Animal Science·Luan Sousa Dos SantosLuciano Hauschild
Nov 19, 2013·Journal of Animal Science·G L FaltysK F Lechtenberg

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