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Asian Journal of Animal and Veterinary Advances
Year: 2008  |  Volume: 3  |  Issue: 1  |  Page No.: 17 - 23

Reproductive and Hematological Characteristics of the Nigerian Indigenous and Large White Pigs in a Humid Tropical Environment

N.O. Aladi, N.J. Okeudo, I.C. Okoli and E.C. Akanno    

Abstract: A comparative study of different reproductive parameters of Large White (LW) and Nigerian Indigenous (NI) pigs was carried out using 9 NI (1 boar and 8 gilts) and 7 LW (2 boars and 5 gilts). Their progenies comprising 20 LW (10 boars and 10 gilts), 22 NI (12 males and 10 females) and 9 LWxNI crossbred pigs (3 males and 6 females) were used to compare the hematological attributes at 9, 17 and 25 weeks of age. The three breeds were managed in a similar fashion. It was observed that heat was virtually silent among the NI gilts and intra breed sexual congresses were more effective than the interbreed congresses. The LW pigs had significantly higher (p<0.05) birth weight than the NI pigs (1.3 kg versus 0.8 kg) and had longer gestation period (116.0 days versus 111.7 days) but litter sizes were similar. No significant age or breed differences were found in haematological parameters (p>0.05) and the values were within the normal ranges generally accepted as reference values for healthy pigs.

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