Reproductive Characteristics in Old and Young Subfertile Mares: Are They Really Different?
- Marinone, Ana Ines
- Mucci, Nicolás
- Kaiser, Germán Gustavo
- Losinno, Luis
- Armendano, Joaquín
- Rodriguez, Edgardo
- Mutto, Adrián Angel
- Redolatti, Cecilia
- Cantatore, Sofia Ernestina
- Herrera, Marcela Fernanda
- Herrera, Juan Manuel
- Fumuso, Elida Ana
DOIAbstract
Physiological and pathological mechanisms that determine subfertility (pregnancy failure, irregular cycles, and abnormalities in reproductive tract) in old mares (OM) have being studied by many authors. However, some young mares also share this reproduction condition although no previous reports have being published. We decided to investigate reproductive parameters of young subfertile mares (YSM) in order to understand the basis of their reproductive behavior. Forty-nine subfertile mares were classified and separated into 2 groups: YSM (3–10 years old; n = 28) and OM (13–23 years old; n = 21). Different number of cycles (1–8) was used for data analysis on the embryo recovery rate (ERR), interovulatory interval (IOI), multiple ovulation rat...
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