畜牧与饲料科学 ›› 2023, Vol. 44 ›› Issue (6): 88-93.doi: 10.12160/j.issn.1672-5190.2023.06.011

• 动物生产与管理 • 上一篇    下一篇

基于典型相关分析探究阿拉善双峰驼血清激素水平与泌乳性能的相关性

道勒玛1, 郭丽丽2,3, 杜海波4, 张文广2,3,5, 曾亚英6   

  1. 1.阿拉善盟畜牧研究所,内蒙古 阿拉善左旗 750306;
    2.内蒙古农业大学生命科学学院,内蒙古 呼和浩特 010018;
    3.内蒙古自治区农业基因组大数据工程研究中心,内蒙古 呼和浩特 010018;
    4.内蒙古阿拉善盟阿拉善孪井滩生态移民示范区综合执法局,内蒙古 阿拉善左旗 750306;
    5.内蒙古农业大学动物科学学院,内蒙古 呼和浩特 010018;
    6.阿拉善盟农畜产品质量安全中心,内蒙古 阿拉善左旗 750306
  • 收稿日期:2023-09-13 出版日期:2023-11-30 发布日期:2024-01-11
  • 作者简介:道勒玛(1977—),女,高级兽医师,主要从事双峰驼育种及应用技术研究工作。
  • 基金资助:
    内蒙古自治区科技计划项目“双峰驼产乳性状的分子遗传标记及应用研究”(2019GG363)

Investigation of Correlations between Serum Hormone Levels and Lactation Performance in Alagxa Bactrian Camels Based on Canonical Correlation Analysis

Daolema1, GUO Lili2,3, DU Haibo4, ZHANG Wenguang2,3,5, ZENG Yaying6   

  1. 1. Alagxa League Animal Husbandry Research Institute,Alagxa Left Banner 750306,China;
    2. College of Life Science,Inner Mongolia Agricultural University,Hohhot 010018,China;
    3. Inner Mongolia Engineering Research Center of Genomic Big Data for Agriculture,Hohhot 010018,China;
    4. Comprehensive Administrative Law Enforcement Bureau of Alagxa Luanjingtan Ecological Migration Demonstration Zone of Alagxa League of Inner Mongolia,Alagxa Left Banner 750306,China;
    5. College of Animal Science,Inner Mongolia Agricultural University,Hohhot 010018,China;
    6. Alagxa League Agricultural and Livestock Product Quality and Safety Center,Alagxa Left Banner 750306,China
  • Received:2023-09-13 Online:2023-11-30 Published:2024-01-11

摘要: [目的]探讨阿拉善双峰驼血清激素水平与泌乳性能的相关性。[方法]选取65峰体况及胎次相近的泌乳初期阿拉善双峰驼,测定其血清激素水平(雌二醇、雌三醇、雌酮、卵泡刺激素、促黄体素、孕酮、催乳素、生长激素、皮质醇、5-羟色胺、肾上腺素、去甲肾上腺素、胰岛素、胰高血糖素、瘦素)和泌乳性能指标(乳产量、乳蛋白率、乳脂肪率、乳糖率、灰分含量)。对血清激素水平和泌乳性能进行典型相关分析:以泌乳性能各指标为X组变量,对应的综合变量为V;以血清激素水平为Y组变量,对应的综合变量为W;利用这两个综合变量之间的相关关系反映两组指标之间的整体相关性,探究血清激素水平与泌乳性能各指标之间的相关关系。[结果]在泌乳性能指标X组中,乳产量的变异程度最大,其次是乳脂肪率,乳糖率、灰分含量、乳蛋白率的变异系数较小;在血清激素水平指标Y组中,变异系数最大的是孕酮,其次是雌二醇,然后依次是促黄体素、去甲肾上腺素、卵泡刺激素、5-羟色胺、皮质醇、雌酮、催乳素、肾上腺素、胰岛素、雌三醇、生长激素、瘦素、胰高血糖素。血清激素水平内部变量间的相关性分析表明,雌三醇的血清水平与雌酮(r=0.88,P<0.001)、促黄体素(r=0.70,P<0.001)、催乳素(r=0.59,P<0.001)显著正相关。泌乳性能与血清激素水平的典型相关分析表明,乳蛋白率与雌三醇的血清水平有较大的相关性。[结论]阿拉善双峰驼泌乳初期的乳蛋白率与雌三醇、雌酮、促黄体素和催乳素的血清激素水平具有相关性。

关键词: 阿拉善双峰驼, 泌乳性能, 血清激素水平, 典型相关分析

Abstract: [Objective] The present study was conducted to assess the correlations between serum hormone levels and lactation performance in Alagxa Bactrian camels. [Method] A total of 65 Alagxa Bactrian camels with similar body conditions and parities in the early lactation stage were selected, and their serum hormone levels (estradiol, estriol, estrone, follicle-stimulating hormone, luteinizing hormone, progesterone, prolactin, growth hormone, cortisol, 5-hydroxytryptamine, epinephrine, norepinephrine, insulin, glucagon, leptin) as well as the lactation performance indicators (milk yield, milk protein rate, milk fat rate, lactose rate, ash content) were determined. Canonical correlation analysis between serum hormone levels and lactation performance was carried out: using lactation performance indicators as the X group variables, with V being the corresponding comprehensive variable; using serum hormone levels as the Y group variables, with W being the corresponding comprehensive variable; the overall correlation between the two groups of indicators were reflected by the correlation between the two comprehensive variables, and the correlations between serum hormone levels and various indicators of lactation performance were explored. [Result] In the X group of lactation performance indicators, the variation degree in the milk yield was the highest, followed by milk fat rate, while the coefficients of variation in lactose rate, ash content and milk protein rate were relatively small. In the Y group of serum hormone level indicators, progesterone had the highest coefficient of variation, followed by estradiol, luteinizing hormone, norepinephrine, follicle-stimulating hormone, 5-hydroxytryptamine, cortisol, estrone, prolactin, epinephrine, insulin, estriol, growth hormone, leptin and glucagon. The correlation analysis among the internal variables of serum hormone levels showed that serum levels of estriol were significantly positively correlated with those of estrone (r=0.88, P<0.001), luteinizing hormone (r=0.70, P<0.001) and prolactin (r=0.59, P<0.001). The canonical correlation analysis between lactation performance and serum hormone levels indicated strong correlation between milk protein rate and serum level of estriol. [Conclusion] The milk protein rate in the early lactation stage of Alagxa Bactrian camels is correlated with serum hormone levels of estriol, estrone, luteinizing hormone and prolactin.

Key words: Alagxa Bactrian camel, lactation performance, serum hormone level, canonical correlation analysis

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