Reproductive performance and serum concentrations of progesterone of heat-stressed Holstein heifers subjected to timed artificial insemination and progesterone supplementation

Simple item page
AudienciaPúblico en generales_ES
CoberturaMéxicoes_ES
Fecha de ingreso2026-10-05T16:33:02Z
Fecha de publicación2012-01-01
ResumenSixty-nine Holstein heifers were used to evaluate the effect of progesterone supplementation aft er timed artificial insemination (TAI) on conception rates of heifers under heat stress. Heifers were randomly assigned to 1 of 3 treatments: 1) control treatment (C), visual detection of estrus. Heifers detected in estrous were inseminated according to the AM-PM procedure (n = 23); 2) TAI (n = 24), using a CIDR device (insert containing progesterone) placed intravaginally on day -10 and removed on day -2 with PGF2 alpha given on day -3. Heifers were given 0.5 mg of ECP at CIDR insertion and a second injection (0.5 mg ECP) was given on day -2 and 48 h aft er all the heifers were inseminated (day 0); and 3) TAI with progesterone supplementation (TAI+S; n = 22), consisting of TAI plus progesterone supplementation with a used CIDR from day 4 to 14 aft er insemination. The maximum temperature humidity index during the study averaged 86, while the minimum was 77. Blood samples were collected from all heifers on days 5, 9, and 14 post-insemination for quantification of progesterone, thyroxine, and triiodothyronine levels. Respiration rate (RR) was measured at 1700 hours and rectal temperature (RT) at 1800 hours, 3 times per week. The conception rate did not differ (P > 0.05) among treatments (C = 40; TAI = 34.6; TAI+S = 44.4\%). The levels of progesterone were not increased (P > 0.05) by progesterone supplementation. Values for RR, RT, and thyroid hormones were similar among treatments (P > 0.05). TAI combined with progesterone supplementation did not improve the conception rate of Holstein heifers under heat stress.es_ES
Doihttps://doi.org/10.3906/vet-1103-27es_ES
URIhttps://riuat.uat.edu.mx/handle/123456789/4872
Idiomaenes_ES
EditorialTubitak Scientific \& Technological Research Council Turkeyes_ES
RelaciónTurkish Journal of Veterinary \& Animal Scienceses_ES
URL relacionadohttps://doi.org/10.3906/vet-1103-27es_ES
DerechosAcceso abierto (Metadatos de producción científica)es_ES
Licenciahttp://purl.org/coar/access_right/c_abf2es_ES
FuenteTurkish Journal of Veterinary \& Animal Sciences
Palabra claveConception ratees_ES
Palabra clavedairy heiferses_ES
Palabra claveheat stresses_ES
Palabra claveprogesteronees_ES
TítuloReproductive performance and serum concentrations of progesterone of heat-stressed Holstein heifers subjected to timed artificial insemination and progesterone supplementationes_ES
TipoArtículoes_ES
ArbitradoHa sido Arbitradoes_ES
AutorCorrea Calderon, Abelardo
AutorHernandez Rivera, Juan Augusto
AutorAvendano Reyes, Leonel
AutorMacias Cruz, Ulises
AutorDiaz Molina, Raul
AutorAlvarez Valenzuela, Francisco Daniel
AutorGonzalez-Reyna, Arnoldo
AutorCorrea Calderon, Abelardoes_ES
AutorHernandez Rivera, Juan Augustoes_ES
AutorAvendano Reyes, Leoneles_ES
AutorMacias Cruz, Uliseses_ES
AutorDiaz Molina, Raules_ES
AutorAlvarez Valenzuela, Francisco Danieles_ES
AutorGonzalez-Reyna, Arnoldoes_ES
InstituciónUniversidad Autónoma de Tamaulipas
InstituciónUniversidad Autónoma de Tamaulipases_ES
Número6es_ES
Rango de páginas611-617es_ES
URL relacionadahttps://doi.org/10.3906/vet-1103-27
Tipo de artículoIndexado
Tipo de artículoIndexadoes_ES
Volumen36es_ES

Files

Collections

Documentación Cientifica