Controlled exercise influence on reproductive performance of stallions

Authors

  • Luiz Roberto Aguiar de Toledo Instituto de Zootecnia, Posto de Equideocultura de Colina, SP
  • Francisco Raul Abbott Perdigão de Oliveira Instituto de Zootecnia, Posto de Equideocultura de Colina, SP
  • Celso Augusto Instituto de Zootecnia, Posto de Equideocultura de Colina, SP
  • Cesar Roberto Esper Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, Departamento de Clínica e Cirurgia, Jaboticabal, SP
  • Francisco Guilherme Leite Universidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, Departamento de Clínica e Cirurgia, Jaboticabal, SP
  • Joaquim Manso Vieira Instituto de Zootecnia, Posto de Equideocultura de Colina, SP
  • José Felipe de Souza Leão Instituto de Zootecnia, Posto de Equideocultura de Colina, SP
  • Gilberto de Figueiredo Santos Instituto de Zootecnia, Posto de Equideocultura de Colina, SP

Abstract

A completely randomized design with 2 treatments and 2 experimental units per treatment was utilized. Treatments: A - 2 hours per day in paddock and riden exercise once a week; B- 6 hours par day in paddock and riden exercise every day. It was a 6 months experiment: 3 months before and 3 months during the breeding season. During the first 3 months, semen was collected twice a week and, every 14 days, the ejaculate was analysed and blood serum collected. Within the breeding season, the analyses of semen and serum collection were performed every 14 days, but if the stallion did not serve at least 2 mares per week, the semen was collected to provide a similar situation as the first period. The ejaculate average volume was different between treatments (69.90 ± 3.30 ml - A and 59.04 ± 3.16 ml - B); the stallion 1 average was higher than the average of the other 3 stallions. The number of ejaculated spermatozoa did not vary between treatments, consequently the concentration showed a lower on A. There was season effect on concentration; it was higher on the first period (266.63 ± 17.80 X 106 spermfml vs 162.57 ± 17.04 X 106 sperm/ml). Principal piece pathology was different between the two season, but probably due to animal variability. Excitation time was not affected by treatments but it was shorter during the second period (breeding season). The semen pH and glucose, calcium and phosphorus levels did not change. Each stallion bred at least 10 mares and the pregnancy rate (stallions 1, 2, 3 and 491.7, 72.2, 80.9 and 81.8%, respectively) did not show effect of treatment of season.

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Published

2014-01-29

Issue

Section

ANIMAL REPRODUCTION

How to Cite

Controlled exercise influence on reproductive performance of stallions. (2014). Bulletin of Animal Husbandry, 45(1), 175-184. http://35.198.24.243/index.php/bia/article/view/708

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