›› 2017, Vol. 44 ›› Issue (12): 3578-3584.doi: 10.16431/j.cnki.1671-7236.2017.12.026

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Comparison of Production Performance of Different Mating Combination Between Castor Rex Rabbit and Plicae Rex Rabbit

ZHAO Yue-ping, YANG Cui-jun, SUN Quan-wen, WU Shu-qin, WU Zhan-fu, HAO Rong-chao, LU Jing, MA Meng-pan, REN Ling-ling   

  1. Hebei Northern University, Zhangjiakou 075000, China
  • Received:2017-06-01 Online:2017-12-20 Published:2017-12-20

Abstract:

In order to compare the production performance of different mating combination between Castor Rex rabbit and Plicae Rex rabbit,40 Castor Rex rabbit (10 ♂ and 30 ♀) and 40 Plicae Rex rabbit (10 ♂ and 30 ♀) with 6 to 7 month old were selected.Hybrid testing was conducted using Plicate Rex rabbit and Castor Rex rabbit as crossing parents which were Castor Rex rabbit pure breeding (Castor Rex rabbit ♂×Castor Rex rabbit ♀),Plicate Rex rabbit pure breeding (Plicae Rex rabbit ♂×Plicae Rex rabbit ♀),orthogonal combination (Castor Rex rabbit ♂×Plicae Rex rabbit ♀)and reciprocal combination (Plicae Rex rabbit ♂×Castor Rex rabbit ♀).The reproductive performance of rabbits does and the growth performance,the slaughter performance and wool quality of their offsprings were measured respectively. The results showed that the neonatal weight of litter,litter size,lactescence,survival rate,weaning weight of litter,F/G,slaughter rate,skin area,hair density,hair fineness and coarse wool rate of orthogonal combination were 320.71 g,6.71,1 727.43 g,83.91%,5 304.14 g,4.06,62.43%,1 160.20 cm2,15 951.70/cm2,16.32 μm and 6.83%,respectively,while that of reciprocal combination were 315.14 g,6.52,1 710.00 g,80.19%,4 814.82 g,4.30,62.93%,1 172.20 cm2,16 092.01/cm2,16.43 μm and 6.78%,respectively,and the differences between reciprocal combination and orthogonal combination were not significant (P>0.05).The F/G,slaughter rate and coarse wool rate of F1 in Castor Rex rabbit pure breeding were higher than that of Plicate Rex rabbit pure breeding,while the other indexes were all lower than Plicate Rex rabbit pure breeding,of which the differences between two pure breeding, except F/G,slaughter rate,hair fineness and coarse wool rate, were significantly different (P<0.05).In conclusion,the reproductive performance of parental generation and growth and slaughter performance of F1 in orthogonal combination was slightly better than that of reciprocal combination,while the wool quality of F1 in reciprocal combination was better than orthogonal combination.

Key words: Castor Rex rabbit; Plicate Rex rabbit; reproductive performance; wool quality; F/G; slaughter rate; skin area

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