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Analysis of correlations between selected blood markers of liver function and milk composition in cows during late lactation period
Annals of Animal Science ( IF 1.9 ) Pub Date : 2020-07-01 , DOI: 10.2478/aoas-2020-0020
Ryszard Mordak 1 , Robert Kupczyński 2 , Marian Kuczaj 3 , Wojciech Niżański 4
Affiliation  

Abstract The knowledge of the existing levels and the interrelationships between various blood and milk parameters is very useful for the analysis and monitoring of homeostasis high-yielding dairy cows. The aim of the study was to evaluate these values and correlations for selected blood markers of liver function aspartate aminotransferase (AST), alanine aminotransferase (ALT), gamma-glutamyl transferase (GGT), bilirubin, albumin, glucose, cholesterol) and selected milk parameters: somatic cell count (SCC), colony-forming units (CFU), fat, protein, lactose, dry matter (DM), fat-free dry matter (FDM), and milk production in cows during late lactation period. At the same time blood and milk samples were collected from 11 clinically healthy milking cows in later lactation period. The 11 selected cows were examined once a day for 3 days resulting in 33 sets of blood and milk samples for laboratory and statistical analysis. Significant positive correlations were observed between: ALT and albumin, ALT and cholesterol, GGT and glucose, albumin and cholesterol, CFU and fat, CFU and DM, SCC and protein, fat and DM, protein and FDM, lactose and FDM, GPT and FDM, albumin and protein, albumin and FDM, glucose and fat, as well as significant negative correlations between: AST and ALT, AST and GGT, AST and albumin, CFU and lactose, fat and lactose, fat and FDM, lactose and DM, DM and FDM, AST and SCC, AST and protein, AST and FDM, ALT and fat, ALT and DM, glucose and DM, cholesterol and CFU. The results obtained may be important for detecting of different biochemical pathways and helpful in estimating, predicting or determining trends, the direction of changes in liver functions and assessing the risk of alert levels for liver blood markers, when only daily results of milk parameters are available.

中文翻译:

泌乳后期奶牛肝功能选定血液标志物与牛奶成分的相关性分析

摘要 了解现有水平以及各种血液和牛奶参数之间的相互关系对于分析和监测高产奶牛的动态平衡非常有用。该研究的目的是评估肝功能天冬氨酸氨基转移酶 (AST)、丙氨酸氨基转移酶 (ALT)、γ-谷氨酰转移酶 (GGT)、胆红素、白蛋白、葡萄糖、胆固醇) 和选定牛奶的选定血液标志物的这些值和相关性。参数:体细胞计数 (SCC)、集落形成单位 (CFU)、脂肪、蛋白质、乳糖、干物质 (DM)、脱脂干物质 (FDM) 和泌乳后期奶牛的产奶量。同时采集了11头泌乳后期临床健康奶牛的血液和牛奶样本。11 头选定的奶牛每天接受一次检查,持续 3 天,产生 33 组血液和牛奶样本用于实验室和统计分析。ALT与白蛋白、ALT与胆固醇、GGT与葡萄糖、白蛋白与胆固醇、CFU与脂肪、CFU与DM、SCC与蛋白质、脂肪与DM、蛋白质与FDM、乳糖与FDM、GPT与FDM之间呈显着正相关、白蛋白和蛋白质、白蛋白和 FDM、葡萄糖和脂肪,以及:AST 和 ALT、AST 和 GGT、AST 和白蛋白、CFU 和乳糖、脂肪和乳糖、脂肪和 FDM、乳糖和 DM、DM 之间的显着负相关和 FDM、AST 和 SCC、AST 和蛋白质、AST 和 FDM、ALT 和脂肪、ALT 和 DM、葡萄糖和 DM、胆固醇和 CFU。获得的结果可能对检测不同的生化途径很重要,有助于估计,
更新日期:2020-07-01
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