Influence of Parities on Littering Traits of ZIKA New Zealand White Rabbits
1649 litters during the first three parities from 665 ZIKA New Zealand White Rabbits were conducted to study the influence of parities on does littering traits.The results showed that parity significantly affect litter size(LZ),number of born alive(NBA),litter weight at birth(LWB)and individual litter weight at birth(ILWB)(P 0.01)and the littering traits elevated as the parities increased.Further correlation analysis indicated that the littering traits of every parity had a significantly positive correlation with each mean value(P0.01)and the third parity had the highest correlation value about LZ,NBA,number of stillbirths(NS) and LWB,LZ,NBA and ILWB of second parity correlated statistically significantly positively with the third parity(P0.05 or P0.01),while the LZ and NBA between these two parities were no significant(P0.05).We suggested that the littering traits of second parity could be a proper index of ZIKA New Zealand White Rabbits' reproductive performance.