Physiological characterization of the postpartum period in four cattle breeds in the tropics of Colombia
Journal Title: Revista MVZ Cordoba - Year 2010, Vol 15, Issue 1
Abstract
Objective. To describe the postpartum period through reproductive parameters, progesterone levels and types of ovarian activity. Materials and methods. 63 females of the breed Holstein x Cebu (HC), Simmental x Cebu (SC), Romosinuano (R) and Cebu (C) were followed from weaning to confirmation of a second pregnancy, blood samples were taken to determine progesterone concentrations by Radioimmunoassay. For the analysis of the information statistical program SAS was used. Results. There were significant differences for age at first postpartum heat, except in the SC and HC groups, regarding the first heat postpartum weight, SC and C groups had higher growth rates, followed by R and HC groups. No significant differences were found for the interval from calving to first progesterone rise. The first postpartum ovulation was presented to the 34.45 days in the SC group, 83.24 in the HC, 46.13 in the R and 31.9 in C. The type of ovarian activity reflects the reproductive efficiency performance, the SC and HC groups had low conception rates, contrary to the R group, which presented an excellent conception rates and progesterone levels considered normal in more than 80% females. Conclusions. The analysis of the progesterone profiles offer a convenient method for monitoring ovarian activity, being able to accurately determined the acyclic duration, the time of ovarian activity resumption, presence of ovarian dysfunctions and finally the beginning and pregnancy maintenance.
Authors and Affiliations
Henry Grajales L, Ph. D *| Universidad Nacional de Colombia, Facultad de Medicina Veterinaria y de Zootecnia Departamento de Ciencias para la Producción Animal, Departamento de Ciencias para la Producción Animal, Grupo de investigación en Fisiología de la Reproducción. Bogotá, Co- lombia. Correspondencia: hagrajalesl@unal.edu.co, Aureliano Hernández V, Ph. D| Universidad Nacional de Colombia, Facultad de Medicina Veterinaria y de Zootecnia Departamento de Ciencias para la Producción Animal, Departamento de Ciencias para la Producción Animal, Grupo de investigación en Fisiología de la Reproducción. Bogotá, Co- lombia. , Esperanza Prieto, M. Sc| Corporación Colombiana de Investigación Agropecuaria - CORPOICA. Turipana, Cereté, Colombia .
The efficacy of chloroquine treatment against naturally occuring Giardia duodenalis infection in lambs
Objective. The aim of the present study was to determine the efficacy of Chloroquine (Cq), an antimalarial medicine, administered at a dose of 2.5 mg/kg, orally, during 5 consecutive days, in Sakiz and Merino lambs natur...
Cellulolytic and Butyrivibrio fibrisolvens bacteria population density, after supplementing fodder diets (Pennisetum clandestinum)
Objective. Determine the population density of cellulolytic bacteria, Butyrivibrio fibrisolvens and the concentration of vaccenic acid, by supplementing diets consisting of kikuyu grass (Pennisetum clandestinum Hoechst....
Laparoscopic cryptorchidectomy in two dogs using ultrasonic scalpel
Traditionally, dogs with abdominally retained testicles are submitted to orchiectomy throughout a ventral midline or parapreputial laparotomy. However, minimally invasive techniques performed using endoscopic equipment a...
Feeding habits of Cocobolo Andinoacara pulcher in the cienaga Grande de Lorica, Colombia
Objective. The feeding habits of Cocobolo (Andinoacara pulcher) in the cienaga Grande de Lorica, Sinu river basin, were studied. Materials and methods. The stomach content was analyzed using the Proportion of empty stoma...
Curve control, development and phenotypic bad formations in poodle the city of Medellin
Objective. Quantifying phenotypic malformations and make a curve control and development of the breed Poodle puppies in the city of Medellin. Materials and methods. We analyzed 60 individuals, 30 females and 30 males wer...