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Genetic Polymorphism and Relationship Analyses of Standard Poodle and Bichon Frise Groups Based on 19 Short Tandem Repeat Loci 认领 引用
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作者 Shuyan Mei Jinlong Yang +5 位作者 Jianping Li Xin Xiong Menglei Wang Zhichao Zhao Yuxin Guo Yajun Deng 《Journal of Forensic Science and Medicine》 2023年第4期331-339,I0013-I0015,共9页
Context:As the increasing number of pet canines,the identification of canine has attracted much attentions in the forensic field,however,the genetic diversities of pet canines still remained unknown.Aims:To explore ge... Context:As the increasing number of pet canines,the identification of canine has attracted much attentions in the forensic field,however,the genetic diversities of pet canines still remained unknown.Aims:To explore genetic polymorphisms of 19 short tandem repeat(STR)loci and genetic relationships between the two studied canine groups and reference group.Subjects and Methods:In the present study,genetic polymorphisms of 19 STR loci and a sex-linked zinc finger locus were analyzed in a total of 594 canines in Standard Poodle and Bichon Frise groups from China.Results:A total of 166,159 alleles were observed in the Standard Poodle,Bichon Frise groups with the corresponding allelic frequencies ranging from 0.0030-0.6108 to 0.0012-0.6148,respectively.The combined discrimination power and probability of exclusion of 19 STR loci in Standard Poodle and Bichon Frise groups were 0.9999999999999497,0.999962884;and 0.99999999999999995,0.999965955,respectively.Furthermore,the genetic distances between the two canine groups and Labrador retriever group were calculated,and the results indicated that Standard Poodle and Bichon Frise groups showed a closer genetic relationship,while the two canine groups had distant genetic relationships with Labrador retriever group.The result of population genetic structure revealed that genetic component distributions in the three canine groups were different.The predicted accuracies of the constructed random forest prediction model for three validation sets(25%individuals randomly selected from three populations with 808 individuals)were higher than 0.9,especially for the individuals in validation set from the Bichon Frise group is 1.Conclusions:The 19 STR loci could be used for individual identification,canine breed identification and paternity testing in the two canine groups. 展开更多
关键词 Short tandem repeat Standard Poodle Bichon Frise forensic parameter canine genetic polymorphism
Omega-3多不饱和脂肪酸对成年比熊犬皮肤健康、毛发质量及采食行为的影响 认领 引用
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作者 黄展威 张冰琪 +1 位作者 张克涛 陈文斌 《饲料研究》 CAS 北大核心 2026年第8期136-140,共5页
试验旨在探究Omega-3多不饱和脂肪酸(PUFA)对成年比熊犬皮肤健康、毛发质量及采食行为的影响。选取20只健康成年比熊犬,随机分为5组,每组4个重复,每个重复1只。对照组饲喂基础饲粮,Ⅰ组、Ⅱ组、Ⅲ组、Ⅳ组分别饲喂添加300、600、900、12... 试验旨在探究Omega-3多不饱和脂肪酸(PUFA)对成年比熊犬皮肤健康、毛发质量及采食行为的影响。选取20只健康成年比熊犬,随机分为5组,每组4个重复,每个重复1只。对照组饲喂基础饲粮,Ⅰ组、Ⅱ组、Ⅲ组、Ⅳ组分别饲喂添加300、600、900、1200 mg/kg Omega-3 PUFA的饲粮。预试期1 w,正式试验期6 w。结果显示,试验第6周,与对照组相比,Ⅱ组的毛发光泽度显著提高106.0%(P<0.05),掉毛量显著降低48.2%(P<0.05),皮肤水分含量显著提高43.6%(P<0.05),皮脂含量(1.85μg/cm2)和毛发直径(48.50μm)显著升高(P<0.05),且平均日采食量最高。Ⅲ组平均日增重和粪便评分显著高于对照组(P<0.05)。Ⅱ组与Ⅲ组总胆固醇(TC)、甘油三酯(TG)及C-反应蛋白(CRP)含量显著低于对照组(P<0.05)。研究表明,饲粮添加600 mg/kg的Omega-3 PUFA可以有效改善成年比熊犬的皮肤健康和毛发质量,维持良好的采食行为,改善机体代谢健康。 展开更多
关键词 Omega-3多不饱和脂肪酸 比熊犬 皮肤健康 毛发质量 采食行为
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