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<p>This study compared fertility and parturition parameters in Limousin (L) and Charolais (C) heifers to identify the breed most suitable for beef production. A total of 234 L and 76 C Hungarian-origin heifers, aged 9–11&#xa0;months, were managed under standardized housing and feeding conditions at Dogan Farm. Parturitions were categorized based on the time of day (day: 07:00–19:00; night) and season (cold, cool, hot). Statistical analyses were conducted using ANOVA and Chi-square tests Results showed that C heifers required significantly more inseminations to conceive (C: 3.39 ± 0.22, L: 2.32 ± 0.10, <i>P</i> &lt; 0.0001), indicating lower reproductive efficiency. Additionally, C calves were significantly heavier at birth than L calves (C: 46.1 ± 0.8&#xa0;kg, L: 40.2 ± 0.3&#xa0;kg, <i>P</i> &lt; 0.0001), with male calves being generally heavier than females (M: 43.7 ± 0.5&#xa0;kg, F: 39.5 ± 0.3&#xa0;kg, <i>P</i> &lt; 0.0001). The incidence of dystocia was higher in C heifers (63.16%) compared to L heifers (41.88%), while L heifers experienced greater parturition ease (58.12% vs. 36.84%; X<sup>2</sup> = 10.4244, <i>P</i> &lt; 0.0054).</p>

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Fertility and parturition parameters in beef type heifers

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年6月9日

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  • Ayşe Uysal,
  • Vefa Tohumcu,
  • Soner Uysal,
  • Ali Sarı,
  • Oğuz Zenginoglu,
  • Mehmet Cengiz,
  • Armağan Hayırlı

摘要

This study compared fertility and parturition parameters in Limousin (L) and Charolais (C) heifers to identify the breed most suitable for beef production. A total of 234 L and 76 C Hungarian-origin heifers, aged 9–11 months, were managed under standardized housing and feeding conditions at Dogan Farm. Parturitions were categorized based on the time of day (day: 07:00–19:00; night) and season (cold, cool, hot). Statistical analyses were conducted using ANOVA and Chi-square tests Results showed that C heifers required significantly more inseminations to conceive (C: 3.39 ± 0.22, L: 2.32 ± 0.10, P < 0.0001), indicating lower reproductive efficiency. Additionally, C calves were significantly heavier at birth than L calves (C: 46.1 ± 0.8 kg, L: 40.2 ± 0.3 kg, P < 0.0001), with male calves being generally heavier than females (M: 43.7 ± 0.5 kg, F: 39.5 ± 0.3 kg, P < 0.0001). The incidence of dystocia was higher in C heifers (63.16%) compared to L heifers (41.88%), while L heifers experienced greater parturition ease (58.12% vs. 36.84%; X2 = 10.4244, P < 0.0054).