摘要
为研究在饲料中添加不同比例的紫花苜蓿提取物对长毛兔生长性能、养分表观消化率及毛皮质量的影响,采用单因素随机设计试验,选择体重相近的安哥拉兔60只,随机分成4组,每组3个重复,每个重复5只,1组饲喂基础日粮为对照组,试验2、3、4组在基础日粮中分别添加1.0%、2.0%、3.0%紫花苜蓿提取物,预试验7 d,试验期35 d。结果显示:(1)试验3、4组的平均日增重较1组比分别提高20.0%、18.6%(P<0.05),料重比较1组比分别降低9.4%、8.2%(P<0.05),试验2、3、4组平均采食量均高于1组(P>0.05);(2)试验2、3、4组干物质、酸性洗涤纤维表观消化率均高于1组(P>0.05),试验3、4组粗蛋白质、中性洗涤纤维表观消化率较1组比分别提高9.5%、8.2%、11.8%、9.1%(P<0.05);(3)试验2、3、4组的毛长、皮张厚度、皮张面积均高于1组(P>0.05),试验3、4组毛皮密度较1组比分别提高8.0%、6.8%(P<0.05)。综上,2.0%紫花苜蓿提取物添加可以提高长毛兔的生长性能、养分表观消化率及毛皮质量。
In order to study the effects of alfalfa extract of different proportions on growth performance,nutrient apparent digestibility and fur quality of rabbits.60 Angolan rabbits with similar body weight were randomly divided into 4 groups,each with 3 replicates and 5 in each replicates.One group was fed with the basic diet as the control group.The experimental groups 2,3 and 4 were supplemented with 1.0%,2.0%and 3.0%alfalfa extract on the basis of the basic diet respectively.The experiment lasted for 7 days and 35 days.The results showed that:(1)The average daily gain of groups 3 and 4 was 20.0%and 18.6%higher than that of group 1,respectively(P<0.05),and the ratio of feed to gain was 9.4%and 8.2%lower than that of group 1.(2)The apparent digestibility of dry matter and acid washing fiber in groups 2,3 and 4 were higher than that in group 1(P>0.05),and the apparent digestibility of crude protein and neutral washing fiber in groups 3 and 4 were 9.5%,8.2%,11.8%and 9.1%higher than that in group 1(P<0.05).The hair length,skin thickness and skin area of groups 2,3 and 4 were all higher than those of group 1(P>0.05).The fur density of groups 3 and 4 was 8.0%and 6.8%higher than that of group 1(P<0.05).The conclusion showed that 2.0%alfalfa extract could improve the growth performance,apparent nutrient digestibility and fur quality of Angora rabbits.
作者
缴丽莉
朱迎新
JIAO Lili;ZHU Yingxin(Shijiazhuang Zoo,Shijiazhuang,Hebei Province 050020,China)
出处
《中国饲料》
北大核心
2021年第1期69-71,75,共4页
China Feed
关键词
紫花苜蓿提取物
长毛兔
生长性能
表观消化率
毛皮质量
alfalfa extract
long-haired rabbit
growth performance
apparent digestibility
fur quality
