search
for
 About Bioline  All Journals  Testimonials  Membership  News


Zootecnia Tropical
Instituto Nacional de Investigaciones Agrícolas Venezuela
ISSN: 0798-7269
Vol. 22, No. 2, 2004, pp. 125-132
Bioline Code: zt04010
Full paper language: Spanish
Document type: Research Article
Document available free of charge

Zootecnia Tropical, Vol. 22, No. 2, 2004, pp. 125-132

 en Cryptosporidium check for this species in other resources sp. in neonatal calves, in dairy and dual-purpose herds in Trujillo State, Venezuela
Adelina Díaz de Ramírez, Lilido N. Ramírez-Iglesia, OlgaHernández Salas,y Noraima Montilla

Abstract

The presence of Cryptosporidium check for this species in other resources sp. and its association with diarrhea cases were determined in newborn calves from two cattle farms: one of double purpose (GDP) and another of dairy farm (GL). Fecal samples were collected from 99 calves, both male and female, with ages ranging from 2 to 30 days. The samples were processed by the NaCl centrifugal flotation method and staining with carbol-fuchsin. The results showed that excretion of Cryptosporidium sp. oocysts was present in 43.1% of the calves from the GDP, and 65.8% those from the GL. The highest infection percentage corresponded to the age group from 15 to 21 days (GDP) reaching 75%, and the group from 8 to 14 days (GL), reaching 100%. Calves infected with Cryptosporidium had a significantly higher percentage of diarrhea (52% at GDP and 77.8% at GL) than non-infected calves (21.2% at GDP and 14.3% at GL) (P<0.05). Only the age groups from 2 to 7 days, and from 8 to 14 days revealed significant association between Cryptosporidium occurrence and diarrhea. These results show a high percentage of infection with Cryptosporidium sp. occurring in newborn calves, and suggest that the parasite might have clinical significance.

Keywords
Calve, newborn, Cryptosporidium sp.

 
 es Cryptosporidium check for this species in other resources sp. en becerros neonatos de ganadería lechera y de doble propósito del estado Trujillo, Venezuela
Adelina Díaz de Ramírez, Lilido N. Ramírez-Iglesia, OlgaHernández Salas,y Noraima Montilla

Resumen

La presencia de Cryptosporidium check for this species in other resources sp. y su asociación con diarrea fue determinada en becerros de dos fincas, una de ganadería lechera (GL) y otra de doble propósito (GDP). Muestras fecales de 99 becerros de ambos sexos, de 2 a 30 días de edad, fueron colectadas, procesadas por el método de centrífugo-flotación con NaCl y coloreadas con carbol-fucsina. Los resultados mostraron que 43,1% de los becerros de GDP y 65,8% de GL excretaron ooquistes de Cryptosporidium sp. El mayor porcentaje de infección en GDP correspondió al grupo etario 15-21 días y en GL, al de 8-14 días con 75% y 100%, respectivamente, observándose asociación significativa (P<0,05) entre la edad de los animales y la infección. En los becerros infectados con Cryptosporidium existe un porcentaje significativamente mayor de muestras diarreicas (52% en GDP y 77,8% en GL) que en los no infectados (21,2% en GDP y 14,3% en GL) (P<0,05). Sólo en los grupos etarios 2-7 y 8-14 días, se observó asociación significativa (P<0,05) entre la presencia de ooquistes y diarrea. Estos resultados indican un alto porcentaje de infección con Cryptosporidium sp. en becerros neonatos y sugieren que el parásito puede tener significación clínica.

Palabras-clave
Becerros, neonatos, Cryptosporidium sp.

 
© Copyright 2004 - Zootecnia Tropical.
Alternative site location: http://www.sian.inia.gob.ve/repositorio/revistas_ci/ZootecniaTropical/ztindice.htm

Home Faq Resources Email Bioline
© Bioline International, 1989 - 2024, Site last up-dated on 01-Sep-2022.
Site created and maintained by the Reference Center on Environmental Information, CRIA, Brazil
System hosted by the Google Cloud Platform, GCP, Brazil