The aim of this study was to assess the effect of animal welfare(AW)on reproductive parameters in dairy cows.The work was performed in 25 livestock units (UPAS)dairy cows of Tizayuca in Mexico.We evaluated the comfort of the cows (facilities management,health,nutrition and behavior).We used a questionnaire called Score for cow comfort on the Dairy Farm.Using breeding records fertility was assessed taking into account aspects such as calving interval,delivery,conception,services per conception,conception dose,percentage of waste for reproductive problems and age at first calving of primiparous cows.Subsequently,ordered data comfort and fertility data in the program JMP3.1.2 SAS Institute,with which a correlation was performed.comfort-fertility.With the data collected was performed fertility descriptive statistics and finally,analyzed the type of hormones that are used.The UPAS that took maximum comfort,had an average value of 17.5 fertility and those with minimuru of comfort,had a minimuru level of comfort,was 8.63,the significance level was(P = 0.13 ).We obtained a R = 0.09 indicating that fertility is explained in 09 I in the comfort and.91 for variables other than the comfort,also a positive relationship between the comfort found in animals and fertility.Of the 14 work UPAS valued only under conditions of cow corufort and the other 11 have ruiniruum comfort conditions.Services per conception,conception dose,interval from calving to calving,age at first childbirth.were elevated with respect to the optimum,however,not reach values that cause problems,the percentage of waste for reproductive problems,indicated serious problems.The interval from calving to conception was all that was within the optimal values based on average of descriptive statistics.In conclusion,we need to AW.in UPAS analyzed,so it is recommended to raise awareness of staff working in the UPAS of the importance of AW,on the productivitv of animals.
Córdova-Izquierdo Alejandro Villa-Mancera Abe Cansino-Arroyo Gerardo López-Naranjo José Isabel Méndez-Hernándes William Sánchez-Aparicio Pedro Olivares-Pérez Jaime Guerra-Liera Eulogio Xolalpa-Campos Víctor Manuel Ruiz-Lang Claudio Gustavo Saltijeral-Oaxaca Jorge A Espinosa-Cervantes Román Córdova-Jiménez Cristian Alejandro Juárez-Mosqueda María de Lourdes Méndez-Mendoza Maximino Huerta-Crispín Rubén
Departamento de Producción Agrícola y Animal,Universidad Autónoma Metropolitana,Unidad Xochimilco,Ca Facultad de Veterinaria,Benemérita Universidad Autónoma de Puebla,México División Acadèmica de Ciencias Agropecuarias,Universidad Juárez Autónoma de Tabasco,Carretera Villah Universidad Autónoma de Guerrero-Unidad Académica de Medicina Veterinariay Zootecnia;km.3.Ocarr.Nal. Facultad de Agronomia Universidad Autónoma de Sinaloa,Mexico Departamento de Producción Agrícola y Animal,Universidad Autónoma Metropolitana,Unidad Xochimilco,Ca AIM IB(E)RICA León,Espa(n)a Departamento de Morfologia.FMVZ-UNAM