Índices reproductivos en vacunos Brown Swiss, Jersey y Holstein en altura – cooperativa Atahualpa Jerusalén – Cajamarca

• Autores: Ruiz Figueroa, Erickson Alvaro, Alvarado Malca, Armando Enrique, Bueno Cabrera, Wilder Aristides
• Formato: artículo
• Fecha de Publicación: 2024
• Institución: Universidad Nacional Federico Villarreal
• Repositorio: Revistas - Universidad Nacional Federico Villarreal
• Lenguaje: español
• OAI Identifier: oai:ojs2.revistas.unfv.edu.pe:article/1604
• Enlace del recurso: https://revistas.unfv.edu.pe/RCV/article/view/1604
• Nivel de acceso: acceso abierto
• Materia: First service, open days, interval between deliveries; Primer servicio, días abiertos, intervalo entre partos

The objective of the study was to evaluate the reproductive and productive indices of Jersey (J), Holstein (H) and Brown Swiss (BS), under high and semi - extensive conditions during the period 1999 to 2013, in the CAT "Atahualpa Jerusalem". in Cajamarca. Records of 685, 115 and 690 cows (J), (H) and (BS); reproductive diagnosis. The ANOVA was made according to the design in Completely Random Blocks (DCRB), using the statistical package Statistix version 8. Race (J) with 19.70 months was earlier in the EPS, compared to H and BS with 23.77 and 25 months, with 2.10 services number per conception higher of than H and BS with 1.81 and 1.73; 168 days open, vs H and BS with 199 and 177; which directly influenced the interval between birth of 14.66 months (J), vs. 15.65 and 15.25 months in the large breeds. The conception rate was similar between races 54.72 (J); and of 58.26; 54.66%. The reproductive indexes allow to conclude that there is evidence to assert that the Jersey breed has adapted to the height conditions, since earlier than the Holstein and Brown Swiss breeds; and the indices obtained could be much more adjusted to racial standards, provided that environmental conditions are improved, especially in food. detection of heat and timing of insemination.