Acta Veterinaria et Zootechnica Sinica ›› 2023, Vol. 54 ›› Issue (11): 4615-4624.doi: 10.11843/j.issn.0366-6964.2023.11.017

• ANIMAL GENETICS AND BREEDING • Previous Articles     Next Articles

Correlation Analysis between Body Size and Cardiac Structural and Functional Parameters in Yili Horses

PENG Xuan1, WANG Tongliang1,2,3, BAO Yike1, YAO Xinkui1,2,3, MENG Jun1,2,3, WANG Jianwen1,2,3, QI Juzhong4, OUYANG Wen5, AHU Wulalibuque1, MA Keyan1, ZENG Yaqi1,2,3*   

  1. 1. Xinjiang Agricultural University, Urumqi 830052, China;
    2. Xinjiang Key Laboratory of Horse Breeding and Sports Physiology, Urumqi 830052, China;
    3. Institute of Horse Industry, Xinjiang Agricultural University, Urumqi 830052, China;
    4. Local State-owned Stud Farm of Xinjiang Uygur Autonomous Region, Yili 835000, China;
    5. Yili Horse Test and Training Center, Yili Stud Farm, Zhaosu County, Xinjiang, Yili 835000, China
  • Received:2023-06-19 Online:2023-11-23 Published:2023-11-26

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Abstract: The study aimed to study the internal relationship between cardiac structure and function parameters of Yili horses with different body sizes and improve the efficiency of sports horse selection. In this study, the cardiac structure and function parameters of 30 healthy 2-year-old Yili horses were measured by color Doppler ultrasound system. The correlation between body height, body length, thoracic circumference, pipe circumference and cardiac structure and function parameters of Yili horses was analyzed and the linear model was fitted. The results showed that the weight, body surface area, body length and thoracic circumference of Yili horses were positively correlated with LADd (P<0.01). Body weight, body surface area, thoracic circumfere-nce were positively correlated with MVD and PAd (P<0.05). Body length was positively correlated with MVD (P<0.01), LVFWs and LVM (P<0.05). Body height was positively correlated with LVLD (P<0.01). Pipe circumference was positively correlated with LADs and MVD (P<0.05). There was no significant correlation between other body size and cardiac structure (P> 0.05). Body weight, body surface area, body length, thoracic circumference were positively correlated with EDV and ESV (P<0.05). Body surface area and thoracic circumference were negatively correlated with EF (P<0.05). Body height was positively correlated with EDV,SV (P<0.01) and CO (P<0.05). Pipe circumference was negatively correlated with LV MASS-I (P<0.05). A total of 12 linear regression equations were fitted, and the R2 values (coefficient of determination) were all higher than 0.9, reaching the extremely significant level, which could be used in production practice. The body length and body height of Yili horses have great influence on the cardiac structure and function parameters. Conducting correlation and regression analysis of cardiac structure and function parameters among Yili horses of different body sizes can provide theoretical basis for cardiac evaluation of horses.

Key words: Yili horse, cardiac structure, ultrasonic cardiogram, function

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