季节对荷兰垂耳兔繁殖性能的影响

宠物兔凭借习性安静、饲养简单、投资少等优点越来越受到人们的喜爱,成为时下最受欢迎的宠物之一。然而,其繁殖性能呈现不稳定性,为探究不同季节对母兔繁殖性能的影响,本研究记录统计1年内荷兰垂耳兔母兔繁殖指标,按4个季节进行分析。结果表明:夏季配种母兔受胎率(73.2%)最低,分别比春、秋、冬季降低了7.4%、6.8%、11.2%;春季的初生窝重最高,分别比夏、秋、冬季增加了63 g、49 g、60 g。且春季的断奶存活率(93.6%)较高。由此可见,在良好、稳定的饲养条件下,不同配种季节对荷兰垂耳兔的繁殖性能的影响存在差异。在冬季最宜配种,其次为春季和秋季,最不宜配种的季节为夏季。

Effects of Season on Reproductive Performance of Holland Lop Rabbits

Pet rabbits are becoming more and more popular among people because of their quiet habits, simple keep-ing, and low investment. They become one of the most popular pets nowadays. However, its reproductive perfor-mance is irregular, in order to explore the effects of mating on the breeding performance of female rabbits under dif-ferent season conditions, and through the statistical records of breeding records of Dutch lop female rabbits withinone year, the analysis was conducted according to four seasons. The results showed that the effects of different mat-ing seasons on the reproductive performance of Dutch lop rabbits were different under good and stable feeding condi-tions. The results showed that the Pregnancy rate(73.2%) and the live birth rate(83.2%) were the lowest in thebreeding females in summer, which were 7.4%(9.6%), 6.8%(8.4%), and 11.2%(8.9%) lower than those in spring,autumn and winter;The primary litter weight in spring was 63 g, 49 g, and 60 g more than summer, autumn and winterrespectively. The weaning survival rate in spring(93.6%) was higher. This research shows that the best breeding inthe spring, followed by winter and autumn, the most inappropriate season for the summer.