影响新西兰兔受胎率的因素分析

Analysis and Discussion on Factors Influencing the Fetation Rate of New Zealand Rabbits

为了分析影响新西兰兔受胎率的因素,提高新西兰兔繁殖率,从仔兔选留、饲喂方式、不同月份受胎率变化三个方面,阐述影响新西兰兔受胎率的高低。选取妊娠母兔60只,分3组,仔兔选留分别为7、8、9只,测定受胎率;另外选取妊娠母兔60只,分2组,饲喂方式分别为自由采食、分餐饲喂,测定受胎率;同时统计2016年全年配种记录,对不同月份受胎率进行统计分析。结果表明:仔兔选留9只受胎率显著低于选留7、8只的母兔;自由采食和分餐饲喂之间没有显著差异;受胎率6、7月份最低,分别为71. 15%、70. 45%,显著低于其他月份,春季、秋季、冬季受胎率均高于夏季。由此得出母兔每窝选留8只,同时对母兔进行自由采食,并控制夏季饲养环境可确保新西兰兔繁殖的最佳性能。

Explore and analyze the factors that influence the fertility rate of New Zealand rabbits,so as to improve the breeding rate of New Zealand rabbits.Describe the effects on the rate of fetation from three aspects:rabbit selection,feeding and the change of the rate of fetation in different months.60 pregnant female rabbits were selected and divided into 3 groups with 7、8、9 sucking litters respectively,and the percentage of pregnancy rabbit was counted.In addition,60 pregnant female rabbits were selected and divided into 2 groups,The feeding methods were feeding freely and feeding separately,and the percentage of pregnancy rabbit was counted.At the same time,the annual mating records of 2016 were statistically analyzed,and the rate of fetation in different months was statistically analyzed.The results showed that there was no significant difference between 7 rabbits and 8 rabbits,and the rate of fetation of 9 rabbits was significantly lower than that of 7 or 8 rabbits.There was no significant difference between free feeding and split feeding.The fetation rate in June and July was 71.15 % and 70.45 %,respectively,significantly lower than that in other months.The fetation rate in spring,autumn and winter was significantly higher than that in summer.In conclusion,in order to ensure the reproductive performance of New Zealand rabbits,it is suggested that the female rabbits should keep 8 rabbits in each litter,and at the same time,the female rabbits should be fed freely and the breeding environment should be controlled in summer.