FACTORES QUE AFECTAN EL INTERVALO PARTO-PRIMERSERVICIO YPRIMER SERVICIO-CONCEPCIÓN EN VACAS LECHERAS DEL VALLE DELMANTARO DURANTE LAÉPOCALLUVIOSA

Authors

  • Carlos Arana D. Estación Experimental IVITA-El Mantaro, FMV-UNMSM
  • Luisa Echevarría C. Laboratorio de Reproducción Animal, FMV-UNMSM.
  • Julia Segura C. Facultad de Veterinaria y Zootecnia, Universidad Peruana Cayetano Heredia

DOI:

https://doi.org/10.15381/rivep.v17i2.1519

Keywords:

calving to first ovulation interval, calving to first service interval, calving to conception interval

Abstract

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 fromcalving 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 dairy cattle (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 only variable of importance that affected CFSI.

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Published

2012-01-30

Issue

Vol. 17 No. 2 (2006)

Section

Artículos Primarios

License

Copyright (c) 2012 Carlos Arana D., Luisa Echevarría C., Julia Segura C.

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

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b. Authors retain their right to share, copy, distribute, perform and publicly communicate their article (eg, to place their article in an institutional repository or publish it in a book), with an acknowledgment of its initial publication in the Revista de Investigaciones Veterinarias del Perú (RIVEP).

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How to Cite

Arana D., C., Echevarría C., L., & Segura C., J. (2012). FACTORES QUE AFECTAN EL INTERVALO PARTO-PRIMERSERVICIO YPRIMER SERVICIO-CONCEPCIÓN EN VACAS LECHERAS DEL VALLE DELMANTARO DURANTE LAÉPOCALLUVIOSA. Revista De Investigaciones Veterinarias Del Perú, 17(2), 108-113. https://doi.org/10.15381/rivep.v17i2.1519