Relationship between non-return rate and chromatin condensation of deep frozen bull spermatozoa.

@article{MadridBury2005RelationshipBN,
  title={Relationship between non-return rate and chromatin condensation of deep frozen bull spermatozoa.},
  author={Ninoska Madrid-Bury and Jos{\'e} F{\'e}lix P{\'e}rez-Gut{\'i}errez and Sonia S P{\'e}rez-Garnelo and Pedro Mendes Moreira and Bel{\'e}n Pintado Sanjuanbenito and Alfonso Guti{\'e}rrez-Ad{\'a}n and Julio de la Fuente Mart{\'i}nez},
  journal={Theriogenology},
  year={2005},
  volume={64 2},
  pages={
          232-41
        }
}
This study analyzes the relationship between chromatin condensation and field fertility, expressed as 90 days non-return rate (NRR), of bulls actively used by AI studs. Frozen-thawed semen from five bulls (six ejaculates per bull, three straws per ejaculate), that showed a non-return rate between 60 and 80%, were analyzed to assess sperm chromatin condensation and stability. The chromatin condensation was determined by flow cytometry using propidium iodide as fluorochrome, and the chromatin… CONTINUE READING
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