乳头数对母兔繁殖力的影响

按照母兔乳头数为１０和８分为试验Ａ组和试验Ｂ组，每组１６只。测定哺乳前三（组）周，每组母兔的泌乳量、仔兔每天的平均吮乳量等。试验结果表明：哺乳前三周，母兔的泌乳量、仔兔每天平均吮乳量、仔兔日增重、断奶窝重及断奶成活率，试验Ａ组分别为３１３８．６２克、２１．９８克／天、只、１４．１８克／日、５２４９．６８克和９３．９７％，分别比Ｂ组高８．３０％、１２．４３％、７．３４％、４．２７％和１０．５５％。经ｔ检验和Ｘ２检验后发现，除断奶窝重在Ａ、Ｂ两组之间差异不显著外，其它各项指标在Ａ、Ｂ两组之间均差异显著（Ｐ＜０．０５）。由此可以得出结论：有较多乳头数的母兔能哺乳更多的仔兔，其繁殖力较强

Effects of Nipples Number on Reproductive Capacity of Does

The test was divided into Group A and Group B, according to the nipples number (10 and 8).There were 16 does in each group. In the first three weeks of nursing period, the milk production of doe, the daily milk intake of kit and so on were measured. The test results showed: in the first three weeks of nursing period, the milk production of doe, the daily milk intake of kit, the daily weight gain of kit, the litter weight and survial rate at weaning of Group A were respectively 3138.62 gram,21.98 gram/day.per, 14.18 gram/day, 5249.68 gram and 93.97%. Except the litter weight at weaning, there were significant differences for these indexes (P<0.05) between Grroup A and Group B, by T test and x 2 test. So we can conclude that the does having more nipples can nurse more kits, and have higher reproductive capacity.