本试验旨在研究鲜饲料与混合料对繁殖期咖啡水貂繁殖性能的影响.本试验选择4 957只健康雌性水貂, 随机分成2组, 鲜料组4 907只, 混合组50只, 鲜料组饲喂全价鲜饲料;混合组饲喂混合50％鲜饲料和50％混水的颗粒饲料, 其中水与颗粒饲料的比例是1.7:1.预饲期6 d, 正式试验期135 d.试验结果表明:1) 饲喂鲜饲料与混合料对母貂发情产生影响, 混合组发情比例16.67％高于鲜料组6.67％, 未发情比例0％低于鲜料组10％, 2组发情好的比例相同均是83.33％;2) 饲喂鲜饲料与混合料对公貂配种性能产生影响, 混合组公貂最低配种次数9次高于鲜料组4次, 公貂平均配种次数12.5次优于鲜料组11.64次, 公貂平均配种母貂数 (5只) 优于鲜料组 (3.94只) , 2组公貂利用率100％和最高配种次数17次均相同;3) 饲喂鲜饲料与混合料对母貂配种性能产生影响, 混合组母貂配种率100％高于混合组98.64％, 配种3次的母貂比例38％高于鲜料组2.90％, 配种2次的母貂比例56％低于鲜料组93.78％, 配种1次的母貂比例6％高于鲜料组3.32％;3) 饲喂鲜饲料与混合料对母貂产仔性能产生影响, 混合组产仔率100％高于鲜料组94.56％, 胎平均产仔数6.64只高于鲜料组6.03只, 空怀率0％要低于鲜料组5.22％, 绝窝比例4.00％高于鲜料组3.01％, 群平均育成数6.56只高于鲜料组5.59只, 混合组30日龄仔貂平均体重244.31 g高于鲜料组229.80 g, 但2组差异不显著 (P> 0.05) , 混合组45日龄仔貂平均体重552.24 g高于鲜料组523.91 g, 但2组差异不显著 (P> 0.05) .综合各项指标分析, 与鲜饲料相比, 混合组饲料促进了种貂发情和配种, 有利于母貂乳汁充足分泌, 从而提高仔貂生长发育.%This study was to evaluate the effect of fresh feed and mixed feed on the reproductive performance in the mink during the breeding period.This experiment selected 4 957 healthy female minks which were randomly divided into 2 groups, fresh feed group (FG) 4 907, the mixed feed group (MG) 50, and MG including 50％ fresh feed and 50％ mixture with 1.7 times water and 1 times pellet feed.The experiment was 6 days for adaption and 135 days for trial period.The results showed as follows:1) Oestrus detection of female mink was influenced by FG and MG, the proportion of general estrus 16.67％ in MG was higher than that 6.67％ in FG.The proportion of no estrus 0％ in MG was lower than that 10％ in FG.The proportion of good estrus was the same 83.33％ in FG and MG.2) Mate times of male mink was influenced by FG and MG, lowest mate times of male mink in MG was 9 times higher than that 4 times in FG.Average mate times in MG was higher12.5％ than that 11.64％ in FG. Mate ratio of male and female was 1:5 higher in MG than that 1:3.94 in FG, but the utilization rate 100％and the highest mate times (17 times) of male mink were the same in two groups.3) Mate performance of female mink was influenced by FG and MG. Mate rate of female mink in MG was 100％ higher than that 98.64％ in FG. The proportion of mate 3 times was higher 38％ in MG than that 2.90％ in FG. The proportion of mate 2 times was lower 56％ in MG than that 93.78％ in FG. The proportion of mate 1 times was higher (6％) in MG than that 3.32％ in FG.4) Farrowing performance of female mink was influenced in two groups. Farrowing rate in MG was higher 100％ than that 94.56％ in FG. Fetal average litter size in MG was higher 6.64 than that 6.03 in FG.The proportion of no pregnancy in MG 0％ was lower than that 5.22％ in FG. The proportion of no litter in MG was higher 4.00％ than that 3.01％ in FG. Average breed number in MG was higher 6.56 than that 5.59 in FG. No significant difference (P> 0.05) on average body weight of 30-days old kits and average body weight of 45-days old kits in two groups, but average body weight of 30-days old kits and 45-days old kits in MG were slightly higher than that in FG. Based on the above analysis, compared with FG, MG promotes the oestrus and breeding and is advantageous to promote sufficient milk secretion of female mink, as well as improves the growth of the young mink. Therefore, this feeding mode is feasible in mink farming production.
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