Influence of immunisation against GnRF on agonistic and mounting behaviour, serum testosterone concentration and body weight in male pigs compared with boars and barrows
作者： Anna-Katharina Albrecht , Elisabeth grosse Beilage , Ellen Kanitz , Birger Puppe , Imke Traulsen
DOI: 10.1016/J.APPLANIM.2012.02.019
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摘要: Abstract The aim of the present study was to assess effects vaccination against boar taint on testosterone levels, body weight and behaviour in male fattening pigs when compared with boars barrows. carried out two replicates over time. Pigs were allocated pens according treatment group (immunised males (IM), castrated (CM), entire (EM)) 10 13 per pen batches one two, respectively. IM vaccinated twice Improvac™ manufacturer's instructions (first injection given day entry unit, second performed had an average 76.6 kg 80.4 kg time, respectively). During fattening, videotaped (test periods two) for a consecutive period 96 h during each test blood samples taken. Live measurements conducted weekly basis. Before one), serum levels comparable those boars. Two weeks after Improvac™-injection decreased significantly ( p
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