Search Results - "Nogueira, G.P"
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Strategies to improve fertility in Bos indicus postpubertal heifers and nonlactating cows submitted to fixed-time artificial insemination
Published in Theriogenology (15-09-2009)“…Two experiments were designed to evaluate strategies to increase fertility of Bos indicus postpubertal heifers and nonlactating cows submitted to a fixed-time…”
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A combination of nutrition and genetics is able to reduce age at puberty in Nelore heifers to below 18 months
Published in Animal (Cambridge, England) (01-03-2018)“…Nelore heifers usually begin their reproductive life at ⩾24 months of age mainly due to suboptimal nutritional conditions and genetics. This study aimed to…”
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Effect of growth rates on hormonal and pubertal status in Nellore heifers early weaned
Published in Tropical animal health and production (01-06-2023)“…This study aimed to determine the effect of growth rates on the hormonal status and puberty onset. Forty-eight Nellore heifers were weaned at 3.0 ± 0.1 (means…”
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LH and FSH concentration and follicular development in Nellore heifers submitted to fixed-time artificial insemination protocols with different progesterone concentrations
Published in Animal reproduction science (01-08-2011)“…Nine heifers were pre-synchronized (PGF2α, 12 days) and assigned into three groups with 6 repetitions each: (1) CL (∼8 days old, n = 13); (2) DIB + CL ( n =…”
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Nursing regimens: Effects on body condition, return to postpartum ovarian cyclicity in Santa Ines ewes, and performance of lambs
Published in Animal reproduction science (01-08-2013)“…The effects of nursing regimens on the body condition, onset of ovarian cyclicity postpartum and weaning weight of lambs were assessed in Santa Ines ewes…”
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Ultrasonographic and endocrine aspects of follicle deviation, and acquisition of ovulatory capacity in buffalo (Bubalus bubalis) heifers
Published in Animal reproduction science (01-02-2011)“…The objectives of this study were to determine the interval from ovulation to deviation and the diameter of the dominant (DF) and largest subordinate (SF)…”
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Effects of flunixin meglumine, recombinant bovine somatotropin and/or human chorionic gonadotropin on pregnancy rates in Nelore cows
Published in Theriogenology (01-09-2011)“…The objective was to compare pharmacological strategies aiming to inhibit prostaglandin F2 alpha (PGF2α) synthesis (flunixin meglumine; FM), stimulate growth…”
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Follicle profile and plasma gonadotropin concentration in pubertal female ponies
Published in Brazilian journal of medical and biological research (01-06-2004)“…Twelve female ponies were examined daily for 30 days and classified as ovulating (OV; N = 6; 197 +/- 6 kg) or prepubertal (PP; N = 6; 196 +/- 9 kg). Follicles…”
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Enzymes as an environmental bottleneck in cellulosic ethanol production: Does on-site production solve it?
Published in Journal of cleaner production (01-10-2022)“…With the progressive implementation of Low-Carbon Policies based on Life Cycle Assessment (LCA) methodologies to assess climate change mitigation, biofuels’…”
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10
Follicle selection by ultrasonography and plasmatic characteristics and ovulatory capacity in buffaloes
Published in Italian journal of animal science (01-01-2007)“…The objectives of the present work were to determine follicle deviation assessed by ultrasonography and profile of plasmatic gonadotrophins, and ovulatory…”
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Role of Luteinizing Hormone in Follicle Deviation Based on Manipulating Progesterone Concentrations in Mares1
Published in Biology of reproduction (01-12-1999)Get full text
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12
Serial frequent or multiple Tru-cut® testicular biopsies in rams enable assessment of histological characteristics or transcriptional profiles, with no acute or chronic adverse effects
Published in Theriogenology (01-01-2025)“…This study aimed to evaluate the feasibility of performing multiple testicular biopsies in rams using Tru-cut® needles, assessing histological structure, gene…”
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Impact of estradiol cypionate prior to TAI and progesterone supplementation at initial diestrus on ovarian and fertility responses in beef cows
Published in Theriogenology (01-12-2017)“…In cattle, early diestrus progesterone (P4) supplementation modulates endometrial function to exert pro- and anti-pregnancy establishment effects;…”
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Effects of two estradiol esters (benzoate and cypionate) on the induction of synchronized ovulations in Bos indicus cows submitted to a timed artificial insemination protocol
Published in Theriogenology (01-08-2012)“…The effects of estradiol benzoate (EB) and estradiol cypionate (EC) on induction of ovulation after a synchronized LH surge and on fertility of Bos indicus…”
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The effect of circulating progesterone on magnitude of the GnRH-induced LH surge: Are there any differences between Bos indicus and Bos taurus heifers?
Published in Theriogenology (01-12-2017)“…This study evaluated the effects of differing circulating progesterone (P4) levels on the luteinizing hormone (LH) surge profile following treatment with…”
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Is the thoroughbred race-horse under chronic stress?
Published in Brazilian journal of medical and biological research (01-10-1997)“…Thoroughbred fillies were divided into three groups according to age: group 1, 7 fillies aged 1 to 2 years (G1) starting the training program; group 2, 9…”
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Implications of growth rates and compensatory growth on puberty attainment in Nellore heifers
Published in Domestic animal endocrinology (01-01-2021)“…This study investigated the effects of growth rates and compensatory growth on puberty attainment in Nellore heifers. Nellore heifers (n = 120), weaned at 8 ±…”
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Manipulation of the periovulatory sex steroidal milieu affects endometrial but not luteal gene expression in early diestrus Nelore cows
Published in Theriogenology (01-04-2014)“…In beef cattle, the ability to conceive has been associated positively with size of the preovulatory follicle (POF). Proestrus estradiol and subsequent…”
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Puberty in South American Bos indicus (Zebu) cattle
Published in Animal reproduction science (01-07-2004)“…Puberty in Zebu heifers follows a pattern characterized by a decrease in the steroid feedback mechanism and an increase in LH concentration, which result in…”
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Plasma cortisol levels in captive wild felines after chemical restraint
Published in Brazilian journal of medical and biological research (01-11-1997)“…Eight Panthera onca (Po), 13 Felis concolor (Fc), 7 Felis yagouaroundi (Fy), 7 Felis tigrina (Ft) and 5 Felis pardalis (Fp) specimens from São Paulo State zoos…”
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