种兔繁殖力的高低与经营者的经济收益有着密切关系，要普遍提高一个兔场的兔群质量，优良种兔必须能提供大量的仔兔，以不断更新低产种兔群。繁殖性能主要是指受胎率、产仔数、初生窝重、断奶窝重和仔兔成活率。

The reproductive capacity of breeding rabbits is closely related to the economic benefits of operators. To generally improve the quality of a rabbit herd in a rabbit farm, excellent breeding rabbits must be able to provide a large number of offspring to continuously update the low yield breeding rabbit herd. Reproductive performance mainly refers to conception rate, litter size, newborn litter weight, weaned litter weight, and rabbit survival rate.

受胎率系指1个发情期内受胎母兔数与参加配种母兔数的百分比。

The conception rate refers to the percentage of female rabbits conceived within one estrus period compared to the number of female rabbits participating in mating.

受胎率=发情期内配种受胎母兔数/参加配种母兔数×

Fertility rate=number of female rabbits conceived during mating period/number of female rabbits participating in mating ×

产仔数是指母兔的每胎实际产仔数，包括活仔、死胎和畸形胎数。产仔数在一定程度上体现了母兔产仔的潜在能力。从生产角度出发，则仅仅计算产下的活仔数来表示母兔的产仔能力。初生窝重是指全窝仔兔哺乳前的体重，主要用来表明整窝仔兔在胚胎期的生长发育情况。据测定，母兔配种时的体重与初生窝重有着密切关系，其相关系数γ=0.871，表明体重大的母兔，妊娠期间胚胎生长发育也良好，初生窝重也大。

The litter size refers to the actual number of births per litter of a female rabbit, including live, stillborn, and malformed births. The litter size to some extent reflects the potential ability of female rabbits to litter. From a production perspective, only the number of live offspring produced is calculated to represent the litter size of the mother rabbit. The newborn litter weight refers to the weight of the entire litter of rabbits before breastfeeding, mainly used to indicate the growth and development of the entire litter during the embryonic stage. According to measurements, there is a close relationship between the weight of female rabbits during mating and the weight of their newborn litter, with a correlation coefficient γ= 0.871 indicates that the mother rabbit with a large body weight has good embryonic growth and development during pregnancy, and the weight of the newborn litter is also large.

断奶窝重是指整窝仔兔的断奶体重，包括寄养仔兔。断奶窝重既反映了断奶时的仔兔存活数，又反映了仔兔在哺乳期内的生长情况，因此是评定母兔哺育性能的总指标。

Weaning weight refers to the weaning weight of the entire litter of rabbits, including those in foster care. The weaning litter weight not only reflects the number of surviving rabbits at weaning, but also reflects the growth of young rabbits during lactation. Therefore, it is the overall indicator for evaluating the feeding performance of mother rabbits.

仔兔成活率是指断奶仔兔数与开始哺乳时仔兔数的百分比。

The survival rate of young rabbits refers to the percentage of weaned rabbits compared to the number of rabbits at the beginning of lactation.

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