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作 者:全凡凡[1] 汪稳 胡立昌 叶敏[1] 易川奇 余毅[1] 周广生[2] QUAN Fanfan;WANG Wen;HU Lichang;YE Min;YI Chuanqi;YU Yi;ZHOU Guangsheng(Hubei Provincial Livestock and Poultry Breeding Center,Wuhan 430072,China;College of Plant Science and Technology,Huazhong Agricultural University,Wuhan 430070,China)
机构地区:[1]湖北省畜禽育种中心,武汉430072 [2]华中农业大学植物科学技术学院,武汉430070
出 处:《养殖与饲料》2023年第12期31-33,共3页Animals Breeding and Feed
摘 要:[目的]研究新鲜饲料油菜代替胡萝卜饲喂种公牛的繁育效果,以期解决冬季种公牛青绿饲料的不足。[方法]选取20头西门塔尔、夏洛莱种公牛随机分为2组,进行为期120 d(饲喂前期和饲喂期)的试验。试验Ⅰ组和试验Ⅱ组每日饲喂相同的基础日粮,在此基础上分别额外添加2.5 kg新鲜油菜和2.5 kg新鲜胡萝卜,检测不同时期各组原精产量、密度和冻精产量。[结果]饲喂期试验Ⅰ组和试验Ⅱ组的原精产量分别比饲喂前期显著提高34.83%、54.50%。饲喂期,试验Ⅰ组的精子密度和冻精产量高于试验Ⅱ组,但差异不显著。[结论]饲料油菜可替代胡萝卜添加到基础日粮中提高种公牛精液的密度和产量。[Objectives]The effects of fresh feed rapeseed instead of carrots on breeding bulls were studied to solve the shortage of green feed for breeding bulls in winter.[Methods]20 Simmental and Charolais bulls were randomly divided into two groups for a 120 days experiment including the pre-feeding period and the feeding period.Group I and group II were fed the same basal diet daily,with an additional 2.5 kg of fresh rapeseed and 2.5 kg of fresh carrots added on this basis.The yield of fresh semen,the density of semen,and yield of frozen semen of each group at different periods were detected.[Results]The yield of fresh semen of group I and group II during the feeding period significantly increased by 34.83%and 54.50%compared to that during the pre-feeding period.The density of semen and yield of frozen semen in group I during the feeding period were higher than those in group II,but the difference was not significant.[Conclusions]Feed rapeseed can replace carrots and be added to the basic diet to increase the density and yield of semen in breeding bulls.
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