the present study was undertaken to examine the efficacy of a treatment regime using a controlled internal drug release (cidr) device in conjunction with injections of gonadotropin releasing hormone (gnrh) and prostaglandin f2α (pgf2α) on conception rate of repeat-breeding iraqi buffaloes. data were collected from 100 buffaloeswith repeat breeding in ninevehprovince housed at six private dairy ...

this experiment were carried out to compare different short-term oestrous synchronization methods in farahani ewes to determine of the best method, so were used 123 ewes from a herd in delijan city in markazi province. after ensuring their health, ewes were divided  to five experimental groups randomizely. the oestrous cycles of the ewes were synchronized using these five methods: 1) use of cid...

AIMS This study aimed at elucidating the effects of recombinant human follicle stimulating hormone (r-hFSH) on the ovarian follicular dynamics, progesterone, estradiol-17β profiles, and pregnancy of dairy cows. MATERIALS AND METHODS Three groups (G, n=5 cows) of multiparous dairy cows were used. G1 (C) control cows were given controlled internal drug release (CIDR) and prostaglandin F2α; G2 (...

in this study, we aimed to investigate reproductive performance in estrus-induced zandi ewes treated with equine chorionic gonadotrophin (ecg) injection in combination with prostaglandin f2α (pgf2α)and gonadotrophin releasing hormone (gnrh) during non-breeding season. the estrous cycle was synchronized using controlled internal drug release (cidr) for 12 days. the ewes were randomly assigned to...

Abstract Pre-synchronization strategies with prolonged exposure to exogenous progesterone have the potential alter estrus expression and improve fertility in beef cows. The objective of this study was evaluate response pregnancy rate suckled cows enrolled two fixed-time artificial insemination (TAI) protocols. A total 1,216 (angus-crossed) at 10 locations across VA were study. Within location, ...

Plasmodium falciparum malaria parasites, living in red blood cells, express proteins of the erythrocyte membrane protein-1 (PfEMP1) family on the red blood cell surface. The binding of PfEMP1 molecules to human cell surface receptors mediates the adherence of infected red blood cells to human tissues. The sequences of the 60 PfEMP1 genes in each parasite genome vary greatly from parasite to par...

Se determinó el porcentaje de gestación (PG) para transferencia embriones (TETF) e inseminación artificial (IATF) a tiempo fijo, bovinos carne, Tamaulipas, bajo condiciones trópico seco. realizaron dos programas TETF en norte primero Rancho Puesta Sol, Burgos, donde se trataron 30 vaquillas con CIDR + benzoato estradiol (BE) y cipionato (ECP) al retiro del CIDR; segundo programa realizó La Indi...

The objectives of this observational study were to document ovarian and endocrine responses associated with the treatment of cystic ovarian follicles (COFs) in dairy cows, using gonadotropin releasing hormone (GnRH) and prostaglandin F2 (PGF) with or without exogenous progesterone. A secondary objective was to determine pregnancy establishment following synchronization of ovulation and timed i...

abstract: an investigation was under taken to evaluate the out of season reproduction performance of ewe. a flock consisting 119 ewes was synchronized via implementation cidr over a period of 12 days, following by injection of pmsg (400 iu). the ewes inseminated and divided to three experimental groups. group1: injection of gnrh (5ml) at day 12 post insemination, group 2: received cidr for 5 to...