Influence of stallion and insemination technique on embryo recovery rates and pregnancy in a program of embryos transfer in equine Mangalarga breed

Authors

  • João Junqueira Fleury Faculdade de Medicina Veterinária 'Octávio Bastos', São João da Boa Vista, SP
  • Abílio Junqueira Pinto Secretaria da Agricultura do Estado de São Paulo, Coordenadoria de Assistência Técnica Integral, Campinas, SP
  • Eneiva Carla Carvalho Celeghini Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Reprodução Animal, São Paulo, SP
  • César Gonçalves Lima Universidade de São Paulo, Faculdade de Zootecnia e Engenharia de Alimentos, Departamento de Ciências Básicas, Pirassununga, SP
  • Rubens Paes de Arruda Universidade de São Paulo, Faculdade de Medicina Veterinária e Zootecnia, Departamento de Reprodução Animal, São Paulo, SP

DOI:

https://doi.org/10.1590/S1413-95962001000100006

Keywords:

Equine, Embryo transfer, Mangalarga, Pregnancy

Abstract

Many factors can affect pregnancy rates after equine embryo transfer. This study had the objective of evaluating the influence of stallion and of three different insemination techniques (natural breed, artificial insemination with fresh or cold semen), on pregnancy and on embryos recovery rates. In the first year, differences were observed (p < 0.05) in embryo recovery rates among the five stallions studied (28.6, 65.0, 62.9, 66.7 and 84.2%), but no statistical differences (p >; 0.05) were detected in pregnancy rates (50.0, 80.7, 70.6, 70.0 and 62.5%). In the second year, it was observed a tendency to statistical significance (p = 0.057) in embryos recovery rates between the stallions (44.4, 56.2, 71.4 and 73.7%), and no statistical differences (p >; 0.05) were detected in pregnancy rates (75.0, 55.6, 86.7 and 71.4%). There were no statistical difference (p >; 0.05) in the number of embryos transferred and in pregnancy rates comparing natural breed (50.0 and 87.5%) and artificial insemination with fresh (60.6 and 73.7%) or cold semen (63.8 and 80.3%).

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Published

2001-01-01

Issue

Section

VETERINARY MEDICINE

How to Cite

1.
Fleury JJ, Pinto AJ, Celeghini ECC, Lima CG, Arruda RP de. Influence of stallion and insemination technique on embryo recovery rates and pregnancy in a program of embryos transfer in equine Mangalarga breed. Braz. J. Vet. Res. Anim. Sci. [Internet]. 2001 Jan. 1 [cited 2024 Oct. 6];38(1):34-7. Available from: https://www.revistas.usp.br/bjvras/article/view/5916