在捷克荷尔斯坦牛中对Var,LnVar和r-Auto弹性指标的生物经济评估
Zuzana Krupová1, Eva Kašná1, Ludmila Zavadilová1
1Institute of Animal Science, Přátelství 815, Uhříněves, 104 00 Prague, Czech Republic.
Animals : an open access journal from MDPI
|December 30, 2025
概括
养殖弹性荷尔斯坦牛可以提高福利和可持续性. 虽然弹性奶牛表现出更好的健康和成分含量,但利能力因弹性指标而异,Q3奶牛总体上利率最低.
科学领域:
- 动物科学动物科学
- 农业经济学 农业经济学
- 遗传学 是一个遗传学.
背景情况:
- 改善动物福利和农场可持续性至关重要.
- 动物对环境和经济不稳定的抵抗力是关键.
- 荷尔斯坦牛的基因会影响性和表现.
研究的目的:
- 在荷尔斯坦牛中评估三个弹性指标 (Var,LnVar,r-auto).
- 评估遗传性对绩效和利能力的影响.
- 使用生物经济模型进行全面评估.
主要方法:
- 分析了捷克农场3655头荷尔斯坦牛的数据.
- 根据遗传倾向将奶牛分为弹性四分位数 (Q1,Q2,Q3) 的类别.
- 使用常规生产测试数据和生物经济模型.
主要成果:
- 性能特征在弹性四分位数 (p < 0.05) 中显著不同.
- Q3奶牛表现出更好的乳液健康和更短的干旱期,但产量较低.
- 利率有所不同,Q2和Q1在特定指标上显示了最高的利,而Q3牛的利率最低.
结论:
- 弹性指标对荷尔斯坦牛的表现和利能力有不同的影响.
- 牛奶产量,哺乳持续性,寿命和牛奶成分是利的关键驱动因素.
- 生物经济模型有效地评估了牛的性和表现.
关键词:
乳牛牛奶牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛牛健康的健康健康的健康.长寿 长寿是一个问题.在生产生产生产生产生产生产.公司的利能力,利能力.生殖生殖的繁殖.福利服务 福利服务更多相关视频
08:29Measuring Liver Mitochondrial Oxygen Consumption and Proton Leak Kinetics to Estimate Mitochondrial Respiration in Holstein Dairy Cattle
Published on: November 30, 2018
11.8K
15:57Application of Long-term cultured Interferon-γ Enzyme-linked Immunospot Assay for Assessing Effector and Memory T Cell Responses in Cattle
Published on: July 11, 2015
12.7K
相关概念视频
Multiple Regression
3.7K
Multiple regression assesses a linear relationship between one response or dependent variable and two or more independent variables. It has many practical applications.
Farmers can use multiple regression to determine the crop yield based on more than one factor, such as water availability, fertilizer, soil properties, etc. Here, the crop yield is the response or dependent variable as it depends on the other independent variables. The analysis requires the construction of a scatter plot...
Farmers can use multiple regression to determine the crop yield based on more than one factor, such as water availability, fertilizer, soil properties, etc. Here, the crop yield is the response or dependent variable as it depends on the other independent variables. The analysis requires the construction of a scatter plot...
3.7K
Variability: Analysis
415
Measures of variability are statistical metrics that reveal the dispersion pattern within a dataset. They are pivotal in biostatistics, providing insights into the heterogeneity within health and biological data. Variability signifies the degree to which data points diverge from one another, helping researchers understand the potential range of values and associated uncertainty within the data.
The range is a simple measure of variability, indicating the difference between the highest and...
The range is a simple measure of variability, indicating the difference between the highest and...
415
Residuals and Least-Squares Property
8.9K
The vertical distance between the actual value of y and the estimated value of y. In other words, it measures the vertical distance between the actual data point and the predicted point on the line
If the observed data point lies above the line, the residual is positive, and the line underestimates the actual data value for y. If the observed data point lies below the line, the residual is negative, and the line overestimates the actual data value for y.
The process of fitting the best-fit...
If the observed data point lies above the line, the residual is positive, and the line underestimates the actual data value for y. If the observed data point lies below the line, the residual is negative, and the line overestimates the actual data value for y.
The process of fitting the best-fit...
8.9K
Heritability
560
Heritability is a statistical concept that measures the degree to which genetic differences among individuals contribute to trait variations within a population. It is a fundamental idea in genetics, often prone to misinterpretation. Heritability is expressed as a percentage, reflecting the proportion of variation in a specific trait across a population that can be linked to genetic differences. However, it's important to understand that heritability does not determine how "genetic"...
560
Friedman Two-way Analysis of Variance by Ranks
465
Friedman's Two-Way Analysis of Variance by Ranks is a nonparametric test designed to identify differences across multiple test attempts when traditional assumptions of normality and equal variances do not apply. Unlike conventional ANOVA, which requires normally distributed data with equal variances, Friedman's test is ideal for ordinal or non-normally distributed data, making it particularly useful for analyzing dependent samples, such as matched subjects over time or repeated measures...
465
Bioequivalence Data: Statistical Interpretation
179
Body:The statistical interpretation of bioequivalence data is a significant aspect of pharmaceutical research. Bioequivalence refers to the absence of any significant difference in the rate and extent to which the active ingredient in pharmaceutical products becomes available at the site of drug action when administered at the same molar dose under similar conditions. This helps determine if different drug products have similar absorption rates, ensuring their interchangeability.Statistical...
179
