饲粮中不同比例桑叶粉对湖羊瘤胃上皮组织结构的影响

发布时间：2018-04-03 06:15

本文选题：桑叶粉　切入点：湖羊　出处：《动物营养学报》2017年06期

【摘要】：本试验旨在研究饲粮中不同比例的桑叶粉对育肥湖羊瘤胃上皮组织结构的影响。选取3月龄育肥湖羊40只,随机分为5组,每组8只。各组用桑叶粉分别替代饲粮中精料的0(A组)、15%(B组)、30%(C组)、45%(D组)、60%(E组)。预试期2周,正试期8周。结果表明:1)B组和C组瘤胃重/复胃重显著高于A组(P0.05)。2)各组瘤胃乳头宽度的差异不显著(P0.05)。3)对于瘤胃上皮的角质层宽度,A组高于其他各组,其中显著高于C组和D组(P0.05);对于瘤胃上皮颗粒层宽度,除D组显著高于E组(P0.05)外,其余各组间差异不显著(P0.05);对于棘突层和基底层宽度,与A组相比,桑叶粉处理能提高棘突层和基底层的宽度,但是作用不显著(P0.05),D组和B组的基底层宽度显著高于C组(P0.05)。总之,用桑叶粉替代15%~45%的精料能在一定程度上提高湖羊复胃的重量,促进的棘突层和基底层细胞的分裂,从而促进瘤胃上皮组织发育,同时,也有效降低了瘤胃上皮角质层的宽度。
[Abstract]:The purpose of this experiment was to study the effect of different proportion of mulberry leaf powder in diet on rumen epithelium structure of fattening Hu sheep.Forty 3-month-old fattening Hu sheep were randomly divided into 5 groups with 8 in each group.In each group, mulberry leaf powder was used to replace the concentrate of diet in group A (group B) and group B (n = 30), group C (n = 45), group D (n = 60) and group E (n = 60).The pre-test period was 2 weeks and the positive test period was 8 weeks.The results showed that the rumen weight / recombination weight of group B and C was significantly higher than that of group A (P0.05U. 2) the width of rumen papilla in group A was not significantly different from that in group A (P 0.05U. 3) the width of keratinocytes in group A was higher than that in group A for rumen epithelium.The width of granular layer of rumen epithelium in group D was significantly higher than that in group C and group D, except that in group D it was significantly higher than that in group E (P 0.05), but there was no significant difference between the other groups. For the width of spinous process layer and basal layer, the width of lamina spinosus and basal layer in group A was higher than that in group A.Mulberry leaf powder could increase the width of spinous process layer and basal layer, but the width of basal layer of group D and group B was significantly higher than that of group C.In a word, replacing 15% of the concentrate with mulberry leaf powder can increase the weight of stomach resuscitation, promote the division of spinous process layer and basal layer cells, and promote the development of rumen epithelium, at the same time,The width of the cuticle of rumen epithelium was also reduced effectively.
【作者单位】：扬州大学动物科学与技术学院;中国农业科学院蚕业研究所;
【基金】：江苏省2016年苏北专项“富民强县项目”(BN2016096) 现代农业产业技术体系建设专项(CARS-22) 扬州大学大学生创新训练项目(x20160691)
【分类号】：S826.5

【相似文献】