Growth performance and fertility of Windsnyer boars supplemented with α-tocopherol.
作者： Ntombizodwa Bovula , Cyprial N Ncobela , Cyril M Pilane , Tshimangadzo L Nedambale , Michael Chimonyo
DOI: 10.1007/S11250-021-02610-9
关键词:
摘要: The purpose of the present work was to determine response in growth performance and spermatozoa characteristics Windsnyer boars supplemented with progressive levels α-tocopherol. Twenty aged 12 weeks an average body weight 19.5 ± 2.67 kg were used. Each boar housed individually a 1.54 × 0.8 m pen environmentally controlled house temperature ranging from 22 25 °C. Five randomly assigned each diet containing 0, 40, 70 90 IU experiment lasted for weeks. Subsequently, humanely slaughtered analyses testicular development characteristics. Polynomial regression used analyse data. There linear (P < 0.05) daily gain feed conversion ratio as α-tocopherol increased. Left right weights showed increase increasing Weights left epididymis exhibited quadratic 0.05). Seminiferous tube area responded fashion relationship between semen volume, straight-line velocity live spermatozoa. Dead head abnormalities decrease In conclusion, inclusion improved fertility boars.
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