Factores queafectan elintervaloparto-primer servicio y primer servicio-concepciÓn en vacas lecheras del valle delmantaro durante laÉpocalluviosa

D. Carlos Arana, C. Luisa Echevarría, C. Julia Segura

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

1 Cita (Scopus)

Resumen

A reproductive study was conducted in the El Mantaro valley, Junín, Peru. Forty milking cows from 6 farms were monitored during the rainy season. The effect of breed, parity, milk yield, farm, and technological level on the interval from calving to first ovulation (CFOI), to first service (CFSI), and to conception (CCI) were evaluated. CFOI was determined through progesterone radioimmunoassayconcentration in defatted milk. CFOI was within the expected range for dairycattle (41.2 ± 20.2 days); however, CFSI (118.4 ± 69.2) and CCI (171.3 ± 105.5 days) were too long, possibly due to heat detection failures and nutritional constraints. Farm technological level was the onlyvariable of importance that affected CFSI.

Título traducido de la contribuciónFactors that affect the interval from calving to first ovulation, to first service, and to conception in milking cows in the Mantaro valley during the rainy season
Idioma originalEspañol
Páginas (desde-hasta)108-113
Número de páginas6
PublicaciónRevista de Investigaciones Veterinarias del Peru
Volumen17
N.º2
EstadoPublicada - 2006

Nota bibliográfica

Publisher Copyright:
© 2006 Universidad Nacional Mayor de San Marcos. All rights reserved.

Palabras clave

  • Calving to conception interval
  • Calving to first ovulation interval
  • Calving to first service interval

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