Search Results - "Sá Filho, M F"
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Reducing the interval from presynchronization to initiation of timed artificial insemination improves fertility in dairy cows
Published in Journal of dairy science (01-09-2007)“…The objective was to determine if reducing the interval from presynchronization to the first GnRH injection (G1) of a timed artificial insemination (AI)…”
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2
Effect of intrauterine infusion of ceftiofur on uterine health and fertility in dairy cows
Published in Journal of dairy science (01-04-2009)“…Objectives were to determine the effects of intrauterine (i.u.) infusion of ceftiofur hydrochloride on uterine health and fertility of dairy cows already…”
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3
Manipulation of Follicle Development to Ensure Optimal Oocyte Quality and Conception Rates in Cattle
Published in Reproduction in domestic animals (01-08-2012)“…Over the last several decades, a number of therapies have been developed that manipulate ovarian follicle growth to improve oocyte quality and conception rates…”
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4
Short communication: Field fertility in Holstein bulls: Can type of breeding strategy (artificial insemination following estrus versus timed artificial insemination) alter service sire fertility?
Published in Journal of dairy science (01-03-2016)“…The aim of this study was to compare pregnancy per artificial insemination (P/AI) from service sires used on artificial insemination after estrus detection…”
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5
Review: Using artificial insemination v. natural service in beef herds
Published in Animal (Cambridge, England) (01-06-2018)“…The aim of this review is to compare the performance of different reproductive programs using natural service, estrus synchronization treatment before natural…”
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6
Ovarian follicle diameter at timed insemination and estrous response influence likelihood of ovulation and pregnancy after estrous synchronization with progesterone or progestin-based protocols in suckled Bos indicus cows
Published in Animal reproduction science (01-07-2010)“…The objectives of the present study were to evaluate factors associated with estrous synchronization responses and pregnancy per insemination (P/AI) in Bos…”
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7
Importance of estrus on pregnancy per insemination in suckled Bos indicus cows submitted to estradiol/progesterone-based timed insemination protocols
Published in Theriogenology (01-08-2011)“…The objective was to evaluate the effect of estrus occurrence (based on removal of tail-head marks) on ovarian responses and pregnancy per AI (P/AI; 30 d after…”
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8
Synchronization treatments previous to natural breeding anticipate and improve the pregnancy rate of postpartum primiparous beef cows
Published in Theriogenology (01-07-2018)“…Timed AI has become a potential tool to bypass postpartum acyclicity, yet only a small percentage of the world bovine herd is inseminated. Most females are…”
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9
Resynchronization with unknown pregnancy status using progestin-based timed artificial insemination protocol in beef cattle
Published in Theriogenology (15-01-2014)“…Two experiments were designed to evaluate the use of resynchronization (RESYNCH) protocols using a progestin-based timed artificial insemination (TAI) protocol…”
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10
Different doses of equine chorionic gonadotropin on ovarian follicular growth and pregnancy rate of suckled Bos taurus beef cows subjected to timed artificial insemination protocol
Published in Theriogenology (15-03-2016)“…This study evaluated the effect of different doses of eCG (control, 300 or 400 IU) administered at progesterone (P4) device removal in suckled Bos taurus beef…”
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11
Effects of feeding rumen-protected choline on incidence of diseases and reproduction of dairy cows
Published in The veterinary journal (1997) (01-07-2012)“…The objectives of this study were to determine the effects of feeding rumen-protected choline (RPC) to dairy cows on the incidence of disease in early…”
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12
Hormonal strategy to reduce suckled beef cow handling for timed artificial insemination with sex-sorted semen
Published in Theriogenology (01-07-2018)“…Two experiments were conducted to assess a hormonal strategy developed to reduce animal handling for timed artificial insemination (TAI) with sex-sorted semen…”
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13
Strategies to improve pregnancy per insemination using sex-sorted semen in dairy heifers detected in estrus
Published in Theriogenology (01-12-2010)“…The objective was to improve pregnancy per artificial insemination (P/AI; 35–42 d after AI) in virgin Jersey heifers bred by AI of sex-sorted semen after being…”
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14
A comparison of two different esters of estradiol for the induction of ovulation in an estradiol plus progestin-based timed artificial insemination protocol for suckled Bos indicus beef cows
Published in Animal reproduction science (10-12-2014)“…The abilities of two different estradiol esters to induce ovulation in a timed AI (TAI) synchronization protocol in suckled Bos indicus cows were evaluated. In…”
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15
Associations of insulin resistance later in lactation on fertility of dairy cows
Published in Theriogenology (01-07-2016)“…The challenge of getting dairy cows pregnant during early lactation is a well-described, worldwide problem. However, specifically in farms with poor…”
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16
Effect of maternal heat-stress on follicular growth and oocyte competence in Bos indicus cattle
Published in Theriogenology (15-01-2008)“…The objective was to determine whether exposure of Gir ( Bos indicus) cows to heat-stress (HS) causes immediate and delayed deleterious effect on follicular…”
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17
Exogenous progesterone enhances ova and embryo quality following superstimulation of the first follicular wave in Nelore (Bos indicus) donors
Published in Theriogenology (15-07-2011)“…Three experiments were conducted to evaluate the effects of exogenous progesterone on superovulatory response and ova/embryo quality in Bos indicus donors…”
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18
Impact of progesterone and estradiol treatment before the onset of the breeding period on reproductive performance of Bos indicus beef heifers
Published in Animal reproduction science (01-09-2015)“…•P4 stimulus prior to breeding period improves heifer reproductive efficiency.•E2 ester at P4 stimulus removal improved heifer response.•Heifers treated with…”
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19
Plasma Antimullerian Hormone as a Predictor of Ovarian Antral Follicular Population in Bos indicus (Nelore) and Bos taurus (Holstein) Heifers
Published in Reproduction in domestic animals (01-06-2014)“…In Bos taurus cattle, antimullerian hormone (AMH) has been demonstrated to have a high degree of correlation with ovarian antral follicle count and the number…”
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20
Different circulating progesterone concentrations during synchronization of ovulation protocol did not affect ovarian follicular and pregnancy responses in seasonal anestrous buffalo cows
Published in Theriogenology (01-02-2014)“…Three experiments were designed to evaluate the effect of different circulating progesterone (P4) concentrations during synchronization of ovulation protocol…”
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