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| Combining ability test of Rongchang pig cross combinations |
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| Abstract: |
| Using the core group of Rongchang pig as dam line，we produced two lines and three-line hybrid
offsprings by different combinations，and measured the reproduction，growth，carcass and meat quality index to evaluate
those offspring performances. The results showed that about the reproductive performance，Yorkshire × Rongchang
（YR）two hybrid sows farrowing total number was 13.07（±2.5），there was no significant difference with Landrace ×
Rongchang sow（LR）two miscellaneous sow，but significantly better than purebred Rongchang；in terms of growth rate，
the average daily gain（ADG） of LR was 635.28 g，significantly higher than that of YR with 593.41 g；the ADG and up
to 100 kg days of Duroc × Landrace × Rongchang（DLR）three-line hybrid pig were 775.88 g，190 d，respectively，
significantly higher than those of Duroc × Yorkshire × Rongchang（DYR）commercial pig. There was no significant
difference in most of the indicators about carcass and meat quality between LR and YR and between DLR and DYR. |
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