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Effect of superstimulatory treatments on the expression of genes related to ovulatory capacity, oocyte competence and embryo development in cattle.
(2012-12-01)
Multiple ovulation (superovulation) and embryo transfer has been used extensively in cattle. In the past decade, superstimulatory treatment protocols that synchronise follicle growth and ovulation, allowing for improved ...
Induction of double ovulation in mares using deslorelin acetate
(Elsevier B.V., 2012-12-01)
This study aimed to determine whether deslorelin acetate could induce double ovulation in mares. In Experiment 1, eight mares were treated with prostaglandin on Day 8 (D8) after ovulation, then treated with saline or with ...
Embryo recovery and pregnancy rates after the delay of ovulation and fixed time insemination in superstimulated beef cows
(2002-04-01)
The aim of this study was to evaluate the effect of delaying ovulation subsequent to superstimulation of follicular growth in beef cows (Bos indicus) on embryo recovery rates and the capacity of embryos to establish ...
Progesterone-based strategies to induce ovulation in prepubertal Nellore heifers
(2013-01-01)
Four experiments were conducted to evaluate hormonal strategies to induce ovulation in Nellore heifers. In experiment 1, heifers (N = 1039) received a controlled internal drug release (CIDR) of fourth use (CIDR-4) on Day ...
Neither plasma progesterone concentrations nor exogenous eCG affects rates of ovulation or pregnancy in fixed-time artificial insemination (FTAI) protocols for puberal Nellore heifers
(2011-01-01)
The objective was to evaluate the effects of plasma progesterone (P4) concentrations and exogenous eCG on ovulation and pregnancy rates of pubertal Nellore heifers in fixed-time artificial insemination (FTAI) protocols. ...
Induction of multiple ovulations in mares using low doses of GnRH agonist Deslorelin Acetate at 48 hours after luteolysis
(Hippiatrika Verlag Mbh, 2015)
LH surge in Nelore cows (Bos indicus), after induced estrus or after ovarian superestimulation
(2009-01-01)
Considering that there is limited information about the preovulatory LH surge in Zebu cattle (Bos indicus), the purpose of the present work was to assess the LH surge in Nelore cows during the estrous cycle and after ovarian ...
Autoclaved, previously used intravaginal progesterone devices induces estrus and ovulation in anestrous Toggenburg goats
(Elsevier B.V., 2011-11-01)
Intravaginal progesterone devices are used worldwide for estrus induction in goats. Reused devices are able to induce estrus; however, this can be a health risk within a flock. The objective was to compare new and previously ...