Atkári Tamás, Gerencsér Zsolt, Nagy István, Szendrő Zsolt
Olivia Ltd., Mizse 94, 6050 Lajosmizse, Hungary.
Institute of Animal Sciences, Kaposvár Campus, Hungarian University of Agriculture and Life Sciences, Guba Sándor Str. 40, 7400 Kaposvár, Hungary.
Animals (Basel). 2025 Jun 3;15(11):1644. doi: 10.3390/ani15111644.
On rabbit farms, the mortality of rabbits born with a low weight is high, and there is a large variation in body weight, so the carcass and the cut carcass are not uniform. The experiment aimed to reduce the mortality of kits born with a low weight and to produce more-uniform slaughter animals. In the experiment, each rabbit doe in the Control group raised 10 newborn kits with low birth weights (S10, = 100), 10 with medium birth weights (M10C, = 100), or 10 with high birth weights (L10, = 100). In the Experimental group, the rabbit does raised 9 newborn kits with low birth weights (S9, = 90), 10 with medium birth weights (M10E, = 100), or 11 with high birth weights (L11, = 110). Compared with the S10 group, the mortality (between 0 and 7 days) in the S9 group was reduced (20.0% vs. 8.9%; < 0.001). While the body weights of the S10, M10C, and L10 subgroups in the Control group increased at 84 days (2876 g, 2872 g, and 3047 g, respectively), there was no significant difference in the body weights of the three subgroups (S9, M10E, and L11) in the Experimental group. The new litter-equalization method was therefore suitable for reducing mortality and achieving a more-equal slaughter weight. At the same time, there was no difference between the groups in the dressing out percentage. The authors further suggest considering the teat number of the does and raising low-weight kits in litters of eight.
在养兔场，出生体重低的兔子死亡率很高，而且体重差异很大，因此胴体和分割后的胴体不均匀。该实验旨在降低出生体重低的仔兔死亡率，并生产出更均匀的屠宰用兔。在实验中，对照组的每只母兔饲养10只出生体重低的新生仔兔（S10，n = 100）、10只出生体重中等的仔兔（M10C，n = 100）或10只出生体重高的仔兔（L10，n = 100）。在实验组，母兔饲养9只出生体重低的新生仔兔（S9，n = 90）、10只出生体重中等的仔兔（M10E，n = 100）或11只出生体重高的仔兔（L11，n = 110）。与S10组相比，S9组（0至7天）的死亡率降低了（20.0%对8.9%；P < 0.001）。对照组中S10、M10C和L10亚组在84天时体重增加（分别为2876克、2872克和3047克），而实验组中三个亚组（S9、M10E和L11）的体重没有显著差异。因此，新的窝均等化方法适用于降低死亡率并实现更均等的屠宰体重。同时，各组的屠宰率没有差异。作者进一步建议考虑母兔的乳头数量，并将低体重仔兔饲养在每窝八只的窝中。
