CAJ | 학술논문

为研究不同初配时间对母兔繁殖性能、体况及其后代生长发育的影响，本试验选用同期出生的120只4月龄新培育肉兔配套系终端母本，按初配年龄分为4组，分别在4.5月龄、5月龄、5.5月龄和6月龄进行初配。结果表明，不同年龄初配时的发情率差异显著(P<0.05)、初配年龄显著影响母兔第一胎配怀率(P<0.05)、泌乳力差异极显著(P<0.01)、初配体重(P<0.01)、产后体况(P<0.01)以及仔兔生长发育(P<0.01)，而对产仔率、胎产仔数、产活仔数、初生窝重、断奶成活率的影响不显著(P>0.05)，其中6月龄初配母兔综合生产性能最好，其次为5.5月龄初配母兔，二者间差异不显著，由于后者饲养成本更低，因此该母本的适宜初配时间为5.5月龄。
위연구불동초배시간대모토번식성능、체황급기후대생장발육적영향，본시험선용동기출생적120지4월령신배육육토배투계종단모본，안초배년령분위4조，분별재4.5월령、5월령、5.5월령화6월령진행초배。결과표명，불동년령초배시적발정솔차이현저(P<0.05)、초배년령현저영향모토제일태배부솔(P<0.05)、비유력차이겁현저(P<0.01)、초배체중(P<0.01)、산후체황(P<0.01)이급자토생장발육(P<0.01)，이대산자솔、태산자수、산활자수、초생와중、단내성활솔적영향불현저(P>0.05)，기중6월령초배모토종합생산성능최호，기차위5.5월령초배모토，이자간차이불현저，유우후자사양성본경저，인차해모본적괄의초배시간위5.5월령。
The experiment was performed to study the effect of different age at first mating(AFM) on reproduc?tion activity and body condition of the rabbit does and their pups’body development. At age of 4 month, 120 does born at the same time and from the terminal maternal of a new rabbit multiline cross system were divided into 4 groups and mated at the age of 4.5,5.0,5.5and 6 month, respectively. AFM significantly influenced the es?trus (P<0.05) rate, conception rate(P<0.05),litter weight at day 21( P<0.01), body weight at first mating (P<0.01), body condition after kindling (P<0.01) of females and their pups’body development (P<0.01), but had no effect on the kindling rate, total litter size, litter size alive and sucking mortality(P>0.05). Does mated at age of 6 month had the best performance and the second was mated at 5.5 month. It was conclude that 5.5 month was a perfect AFM because of the lower feed cost.