Tropical Animal Health and Production

, Volume 43, Issue 3, pp 597–601

Effect of climate factors on conception rate of lactating dairy cows in Mexico

  • Abel Villa-Mancera
  • Maximino Méndez-Mendoza
  • Rubén Huerta-Crispín
  • Felicitas Vázquez-Flores
  • Alejandro Córdova-Izquierdo
Original Research

Abstract

The purpose of this study was to investigate the relationship between conception rate (CR) and climate variables. Data consisted of 24,380 inseminations of Holstein dairy herd in Hidalgo, Mexico. Weather records, including daily temperature (T), relative humidity (RH), rainfall, wind speed, and solar radiation, were obtained from a nearby weather station. Means for each climatic variable from 2 days before artificial insemination (AI) to the AI day were calculated for each conception date represented in the study. A significant negative correlation was observed between the CR and mean and minimum T, mean and minimum RH, mean and minimum temperature–humidity index (THI), and rainfall. The overall mean CR was 34.3%. The CR in lactating dairy cows followed a seasonal pattern, lower CRs were observed in summer months than during winter (32.1% vs. 36.9%; P < 0.01). The variables that had the greatest influence on CR were minimum and maximum T, minimum RH, minimum THI, wind speed, and rainfall.

Keywords

Dairy cows Reproduction Conception rate Climate factors 

Abbreviations

AI

Artificial insemination

CR

Conception rate

Max

Maximum

Min

Minimum

RH

Relative humidity

T

Temperature

THI

Temperature–humidity index

WS

Wind speed

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Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  • Abel Villa-Mancera
    • 1
    • 2
  • Maximino Méndez-Mendoza
    • 1
  • Rubén Huerta-Crispín
    • 1
  • Felicitas Vázquez-Flores
    • 1
  • Alejandro Córdova-Izquierdo
    • 3
  1. 1.Laboratorio de Genética y Reproducción, Facultad de Medicina Veterinaria y ZootecniaBenemérita Universidad Autónoma de PueblaTecamachalcoMexico
  2. 2.Departamento de Biología de la ReproducciónUniversidad Autónoma Metropolitana Unidad IztapalapaD.F.Mexico
  3. 3.Departamento de Producción Agrícola y AnimalUniversidad Autónoma Metropolitana Unidad XochimilcoD.F.Mexico

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