Effect of interleukin -6 level on reproductive performance in Holstein cows

Kufa Journal for Agricultural Sciences Pub Date : 2023-12-01 DOI:10.36077/kjas/2023/v15i2.3860

Suaad Shnawa Jassim, Hamza Mizail Hawa

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Abstract

Abstract: The current study was conducted in private dairy cows station located in middle of Iraq by using 80 samples of blood during the period 2021 – 2022 in aim to determine the effect of IL-6 concentration on reproductive performance. Results showed a significant effect (P≤0.01) of IL-6 level on reproductive traits parameters. Days open differed significantly according this interleukin and the highest days open was recorded in cows with low IL-6 level namely, 187.37 pg/ml. Service per conception differed significantly according to IL-6 level in blood plasma, the highest number of service per conception was recorded in cows with low IL-6 interleukin about 3.77 service. calving interval differed significantly according to IL-6 concentration, the longest period was noticed in cows with low IL-6 level compared with the shortest period which noticed in cows with moderate IL-6 level namely, 482.48 and 400.25 day respectively. Ovulation weakness differ significantly (P≤0.01) according to IL-6, the highest rate of infection was recorded in cows with high IL-6 level (63.64%) from total number about 33 cases while the lowest rate of ovulation weakness was noticed in cows with low IL-6 level namely, 21.21%.

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白细胞介素 -6 水平对荷斯坦奶牛繁殖性能的影响

摘要为研究IL-6浓度对奶牛繁殖性能的影响，本研究于2021 - 2022年在伊拉克中部的私人奶牛站采集了80份血液样本。结果表明，IL-6水平对生殖性状参数有显著影响(P≤0.01)。白细胞介素水平差异显著，IL-6水平较低的奶牛产仔日数最高，为187.37 pg/ml。血浆中IL-6水平差异显著，IL-6水平低的奶牛单胎受胎次数最高，约为3.77次。产犊间隔因IL-6浓度的不同而有显著差异，低IL-6水平奶牛产犊周期最长，而中等IL-6水平奶牛产犊周期最短，分别为482.48天和400.25 d。血清IL-6水平差异有统计学意义(P≤0.01)，高IL-6水平奶牛的感染率最高(63.64%)，低IL-6水平奶牛的感染率最低(21.21%)。

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Kufa Journal for Agricultural Sciences

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0.20

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