Evaluación de la morfometría genital en relación con la calidad espermática en bovinos raza brown swiss
The present study aimed to evaluate genital morphometry and its relationship with sperm quality in 20 Brown Swiss bulls. In the analysis of testicular weight, the largest proportion of animals (40%) was concentrated in the range of 851 to 900 g, while the intervals of 700 to 750 g and 951 to 1000 g...
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| Format: | bachelorThesis |
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2025
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| Online Zugang: | https://dspace.ueb.edu.ec/handle/123456789/8998 |
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Tag hinzufügen | Zusammenfassung: | The present study aimed to evaluate genital morphometry and its relationship with sperm quality in 20 Brown Swiss bulls. In the analysis of testicular weight, the largest proportion of animals (40%) was concentrated in the range of 851 to 900 g, while the intervals of 700 to 750 g and 951 to 1000 g each represented 15%, followed by the ranges of 901 to 950 g and 1001 to 1050 g with 10% each. These results show that most of the population presented intermediate to high weights, associated with adequate testicular development. Regarding scrotal circumference, 40% of the animals were within 27 to 33 cm, and 25% between 34 and 40 cm, so that 65% fell within medium to high ranges, considered positive indicators of fertility. In terms of testicular morphology, 70% showed normal conformations, of which 45% corresponded to elongated and 25% to round shapes; while 30% presented rotated testes, which could represent a risk factor for semen quality. The evaluation of seminal volume indicated that 45% produced between 2 and 4 ml and 40% between 5 and 7 ml, accounting for 85% within acceptable parameters, while only 10% reached values between 8 and 10 ml. Finally, in seminal density, 50% of the animals presented dense semen and 40% semi-dense, conditions considered normal and favorable, whereas only 10% showed extreme characteristics such as very dense or serous semen. Overall, the results demonstrate that most of the Brown Swiss bulls evaluated possess adequate morphometric and seminal parameters, confirming their reproductive potential and the usefulness of these indicators in selection and genetic improvement programs. |
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