• español
    • English
UFPS

Repositorio Digital

  • Directrices
    • Autorización publicación
    • Carta a directores de programa
    • Carta a graduados
    • Constancia de entrega de documento en Biblioteca
  • English 
    • español
    • English
  • Login
logo acreditacion
  • Colecciones Comunities
  • Autor Authors
  • Título Titles
  • Fecha Dates
  • Materias Subjects
View Item 
  •   DSpace Home
  • B. Investigación
  • BA. Grupos de Investigación
  • Reproducción Animal Tropical - TROPSYNC
  • View Item
  •   DSpace Home
  • B. Investigación
  • BA. Grupos de Investigación
  • Reproducción Animal Tropical - TROPSYNC
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Cambiar vista

Browse

All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsResource TypeThis CollectionBy Issue DateAuthorsTitlesSubjectsResource Type

My Account

LoginRegister

Statistics

View Usage Statistics

Effect of uterine size on fertility of lactating dairy cows


Baez, Giovanni cc
Barletta, Rafael Villela
Guenther, Jerry N.
Wiltbank, Milo Charles

Artículo de revista


2016-05

Theriogenology

Estados Unidos

UterusBuscar en Repositorio UFPS
FertilityBuscar en Repositorio UFPS
Dairy cowBuscar en Repositorio UFPS
SynchronizationBuscar en Repositorio UFPS

There are multiple reasons for reduced fertility in lactating dairy cows. We hypothesized that one cause of reduced fertility could be the overall size of the reproductive tract, particularly the uterus, given well-established uterine functions in many aspects of the reproductive process. Thus, the objectives of this study were to evaluate the variability in uterine size in primiparous and multiparous dairy cows and to analyze whether there was an association between uterine size and fertility, particularly within a given parity. Lactating Holstein dairy cows (n = 704) were synchronized to receive timed artificial insemination (TAI) on Day 81 ± 3 of lactation by using the Double-Ovsynch protocol (GnRH-7d-PGF-3d-GnRH-7d-GnRH-7d-PGF-56h-GnRH-16h-TAI). At the time of the last injection of PGF, uterine diameter was determined at the greater curvature using ultrasound, uterine length was determined by rectal palpation, and uterine volume was calculated from these two measurements. Blood samples were also taken to measure progesterone to assure synchronization of all cows used in the final analysis (n = 616; primiparous, n = 289; multiparous, n = 327). Primiparous cows had greater percentage pregnant/AI (P/AI) compared to multiparous cows (49.8% vs. 39.1% at 67 days of pregnancy diagnosis, P = 0.009). Diameter, length, and volume of the uterus were larger in multiparous than in primiparous cows (P < 0.001). For multiparous cows, uterine diameter and volume were smaller in cows that became pregnant compared to cows that were not pregnant to the TAI with a similar tendency observed in primiparous cows. Logistic regression and quartile analysis also showed that as uterine volume increased, there was decreased P/AI in either primiparous or multiparous cows. Thus, there is a negative association between uterine size and fertility in lactating dairy cows with a larger uterus associated with reduced fertility, particularly for multiparous cows.

http://repositorio.ufps.edu.co/handle/ufps/1638

https://www.sciencedirect.com/science/article/abs/pii/S0093691X1500206X?via%3Dihub#kwrds0010

  • Reproducción Animal Tropical - TROPSYNC [9]

Descripción: Effect of uterine size on fertility of lactating dairy cows.pdf
Título: Effect of uterine size on fertility of lactating dairy cows.pdf
Tamaño: 196.7Kb

Unicordoba LogoPDFOpen AccessFLIPLEER EN FLIP

Show full item record

Cita

Cómo citar

Cómo citar

Miniatura

Thumbnail

Gestores Bibliograficos

Exportar a Bibtex

Exportar a RIS

Exportar a Excel

Buscar en google Schoolar

Buscar en microsoft academic

untranslated

Código QR

Envíos recientes

    No hay artículos recientes
Image
Image
Image
Image
Image
Image
Image
‹›
Logo Pie de Página UFPS

Portales Institucionales

  • Divisist
  • Pagos de Egresados y Externos
  • Piagev
  • PDQRS
  • DatarSoft
  • Sistema de Nómina
  • DISERACA

Enlaces de Interés

  • Plan Anticorrupción
  • Proceso de selección
  • Contratación
  • Proceso democrático
  • Derechos pecuniarios
  • Correo Electrónico Institucional
  • Consultorio Jurídico

Contactos

Avenida Gran Colombia No. 12E-96 Barrio Colsag,
San José de Cúcuta - Colombia
Teléfono (057)(7) 5776655

Solicitudes y correspondencia
Unidad de Gestión Documental
ugad@ufps.edu.co

Uso único y exclusivo para notificaciones judiciales:
notificacionesjudiciales@ufps.edu.co

-->
Sistema DSPACE - Metabiblioteca | Metabiblioteca