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<p>In Algeria, low milk production is somewhat related to the health of cows, especially metabolic diseases, which lead to physiological problems, decreased milk output, and economic losses for the industry. In this regard, the current study is to examine changes in physical condition and blood biochemical parameters in dairy cows during the crucial postpartum phase. Several biochemical parameters, such as triglycerides (TG), aspartate aminotransferase (ASAT), alanine aminotransferase (ALAT), creatine kinase (CK), cholesterol, calcium (Ca), and blood glucose, were measured and analyzed in clinically healthy, age-matched multiparous Holstein cows. These cows all come from dairy farms in the Chlef and Ain Defla regions of Algeria. Four blood samples were taken from calving up to the 45th day postpartum. The cows were divided into three groups of 36 cows each: thin, fat, and control (an average body condition) related to their BCS at calving. The results revealed a significant difference (<i>P</i> &lt; 0.001) for the average ASAT level at D0, for thin, medium, and fat cows. This rate decreased significantly at D15, D30, and D45 (<i>P</i> &lt; 0.001) for the cows in all three groups and recorded the highest values in thin cows. Similarly, the evolution of ALAT, TG, and CK was significantly decreasing (<i>P</i> &lt; 0.001) from calving until the 45th day of lactation for all cows in the three groups. The average levels of cholesterol, blood glucose, and Ca significantly increased from D0 to D45 (<i>P</i> &lt; 0.001). Our study shows that the thin cow primarily mobilizes alanine and aspartate to meet its energy needs, while the fat cow relies more on lipid mobilization to satisfy the energy demand observed after calving.</p>

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Effect of body condition score at calving on the monitoring of certain biochemical parameters in dairy cows during postpartum in Algeria

  • 期刊论文

  • 发表日期：

    2026年4月22日

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  • Elhassen Lankri,
  • Khedidja Boudour,
  • Nassima Bouhroum,
  • Mohammed El Amine Bekara,
  • Ibrahim Belabdi,
  • Sihem Ziri,
  • Dalila Amokrane,
  • Malika Hachi Illoul,
  • Hamida Salhi,
  • Malika Meziane Ahmed

摘要

In Algeria, low milk production is somewhat related to the health of cows, especially metabolic diseases, which lead to physiological problems, decreased milk output, and economic losses for the industry. In this regard, the current study is to examine changes in physical condition and blood biochemical parameters in dairy cows during the crucial postpartum phase. Several biochemical parameters, such as triglycerides (TG), aspartate aminotransferase (ASAT), alanine aminotransferase (ALAT), creatine kinase (CK), cholesterol, calcium (Ca), and blood glucose, were measured and analyzed in clinically healthy, age-matched multiparous Holstein cows. These cows all come from dairy farms in the Chlef and Ain Defla regions of Algeria. Four blood samples were taken from calving up to the 45th day postpartum. The cows were divided into three groups of 36 cows each: thin, fat, and control (an average body condition) related to their BCS at calving. The results revealed a significant difference (P < 0.001) for the average ASAT level at D0, for thin, medium, and fat cows. This rate decreased significantly at D15, D30, and D45 (P < 0.001) for the cows in all three groups and recorded the highest values in thin cows. Similarly, the evolution of ALAT, TG, and CK was significantly decreasing (P < 0.001) from calving until the 45th day of lactation for all cows in the three groups. The average levels of cholesterol, blood glucose, and Ca significantly increased from D0 to D45 (P < 0.001). Our study shows that the thin cow primarily mobilizes alanine and aspartate to meet its energy needs, while the fat cow relies more on lipid mobilization to satisfy the energy demand observed after calving.