SPERMATIC MORPHOLOGY ALTERATIONS IN BEEF BULLS SUPPLEMENTED OR NOT WITH ZINC IN MINERAL SALT

Authors

  • Carlos Eurico Fernandes Universidade Federal do Mato Grosso do Sul (UFMS), Campo Grande, Mato Grosso do Sul, Brasil
  • Alexandra Rocha Oliveira
  • Paula de Almeida Barbosa Miranda Embrapa Gado de Corte, Campo Grande, Mato Grosso do Sul, Brasil
  • Simone da Cunha Pereira Lopes Embrapa Gado de Corte, Campo Grande, Mato Grosso do Sul, Brasil
  • Sheila da Silva Moraes Embrapa Gado de Corte, Campo Grande, Mato Grosso do Sul, Brasil
  • Maria da Graça Morais Universidade Federal do Mato Grosso do Sul (UFMS), Campo Grande, Mato Grosso do Sul, Brasil
  • Urbano Gomes Pinto de Abreu Embrapa Pantanal, Corumbá, Mato Grosso do Sul, Brasil
  • Fernanda da Cruz Landim-Alvarenga Universidade Estadual Paulista (UNESP), Botucatu, São Paulo, Brasil

Keywords:

Animal Reproduction

Abstract

Seminal characteristics of bulls without Zn in the mineral supplementation (ZN-0, n=4, 0mg/Zn/kg/dia) were compared with bulls contemporary with appropriate mineral supplementation (ZN-60FI, n=4, 60mg/Zn/kg/dia). The semen was evaluated biweekly, between 17 and 29 months of age. The prevalence of abnormal chromatin and morphometric profile (length, superior and inferior width (µm) and area (µm2) of the sperm head were included in the analysis. ZN-0 bulls presented reduction of normal sperms in relation to ZN-60FI (63.3 ±2.88 x 74.5 ±2.83%), higher abnormal chromatin (16.7 ±2.05 x 9.3 ±0.81%) and abnormal intermediate piece (9.3 ±0.81 x 3.2 ±0.80%), respectively. Abnormalities of intermediate piece were characterized by irregularities in the mitochondrial organization and rupture of the external dense fibers in electronic microscopy. The area of head sperm of ZN-60 bulls was lower (25.0 ±3.8 x 27.9 ±4.6, p <0.01) in relationship to ZN-0, respectively. We concluded that bulls born and maintained in the field conditions coming of herds with subclinic deficiency of Zn in the basal diet, are subject the reduction of the seminal quality and present larger frequency of intermediary piece abnormalities, sperm chromatin and variations on morphometrics measurements of head sperms. 
KEY WORDS: Bovine, chromatin, nutrition, semen quality, sperm morphometry, zinc.

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Published

2009-12-17

How to Cite

FERNANDES, Carlos Eurico; OLIVEIRA, Alexandra Rocha; MIRANDA, Paula de Almeida Barbosa; LOPES, Simone da Cunha Pereira; MORAES, Sheila da Silva; MORAIS, Maria da Graça; ABREU, Urbano Gomes Pinto de; LANDIM-ALVARENGA, Fernanda da Cruz. SPERMATIC MORPHOLOGY ALTERATIONS IN BEEF BULLS SUPPLEMENTED OR NOT WITH ZINC IN MINERAL SALT. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 10, n. 4, p. 1074–1083, 2009. Disponível em: https://revistas.ufg.br/vet/article/view/3882. Acesso em: 5 dec. 2025.

Issue

Vol. 10 No. 4 (2009)

Section

Animal Production

License

Copyright (c) 2009 Brazilian Animal Science/ Ciência Animal Brasileira

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