Avaliação ultrassonográfica, andrológica e histopatológica de novilhos confinados em dieta hiperenergética

Cunha, Michel Santos eTaira, Augusto RyonosukeBonato, Denis ViniciusVrisman, Dayane PriscilaLima, Moises MoreiraAlbuquerque, Rodrigo dos SantosSantos, Victor Jose CorrêaTeixeira, Pedro Paulo Maia

The aim of this study was to andrologicaly evaluate confined young bulls submitted to a diet rich instarch, correlating andrological traditional data with ultrasonography and testicular histology. 40 bullsconfined for 94 days were submitted to 4 assessments to obtain testicular biometry, ultrasound images andsemen collection and evaluation of the testes after slaughter. There was a progressive increase in weight 341.7 ±15 kg at baseline to 453.6 ± 30 kg at the end of feedlot in 94 days, and testis, with CE of 28.44 ± 3:36 cm to34.68 ± 8.21 cm, VT 677.5 ± 234.7 mm3 to 2663.5 ± 1004 mm3. Ultrasound images showed changes from the56th day. Histological analysis presented alterations from inflammatory findings and testicular degeneration.The study showed that feedlot bulls submitted to high-energy diet rich in starch presented progressive testiculardevelopment and weight, however, it resulted in sonographic, histopathologic and andrological alterations.(AU)

1. breeder
2. feedlot
3. reprodutor
4. estroma testicular
5. confinamento
6. testicular stroma