M. Amstalden

M. Amstalden publication distribution in Animal Science and Veterinary in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Animal Science and Veterinary in 2026. The highlighted bar marks where M. Amstalden sits on this spectrum.

M. Amstalden D-index placement in Animal Science and Veterinary in 2026

The chart shows the D-index (discipline H-index) distribution of Animal Science and Veterinary scientists ranked by Research.com in 2026. The highlighted bar marks where M. Amstalden sits on this spectrum.

Best Publications

• Regulatory roles of leptin in reproduction and metabolism: a comparative review.

  D.A. Zieba;D.A. Zieba;M. Amstalden;G.L. Williams

  305
  Citations

• Neurokinin 3 Receptor Immunoreactivity in the Septal Region, Preoptic Area and Hypothalamus of the Female Sheep: Colocalisation in Neurokinin B Cells of the Arcuate Nucleus but not in Gonadotrophin‐Releasing Hormone Neurones

  M. Amstalden;L. M. Coolen;L. M. Coolen;A. M. Hemmerle;Heather J. Billings;Heather J. Billings

  243
  Citations

• Leptin gene expression, circulating leptin, and luteinizing hormone pulsatility are acutely responsive to short-term fasting in prepubertal heifers: relationships to circulating insulin and insulin-like growth factor I(1).

  M. Amstalden;M.R. Garcia;S.W. Williams;R.L. Stanko

  238
  Citations

• Serum leptin and its adipose gene expression during pubertal development, the estrous cycle, and different seasons in cattle

  M. R. Garcia;M. Amstalden;S. W. Williams;R. L. Stanko;R. L. Stanko

  205
  Citations

• Reduced progesterone concentration during growth of the first follicular wave affects embryo quality but has no effect on embryo survival post transfer in lactating dairy cows

  Fernando Acuna Rivera;Luís Gustavo Delamanha Mendonça;Gláucio Lopes;Jose E P Santos

  189
  Citations

• Concentration of progesterone during the development of the ovulatory follicle: II. Ovarian and uterine responses

  R.L.A. Cerri;R.C. Chebel;F. Rivera;C.D. Narciso

  155
  Citations

• Leptin and its role in the central regulation of reproduction in cattle.

  G.L Williams;M Amstalden;M.R Garcia;R.L Stanko

  155
  Citations

• Central Infusion of Recombinant Ovine Leptin Normalizes Plasma Insulin and Stimulates a Novel Hypersecretion of Luteinizing Hormone after Short-Term Fasting in Mature Beef Cows

  M. Amstalden;M.R. Garcia;R.L. Stanko;R.L. Stanko;S.E. Nizielski

  145
  Citations

• Hormonal manipulations in the 5-day timed artificial insemination protocol to optimize estrous cycle synchrony and fertility in dairy heifers.

  F.S. Lima;E.S. Ribeiro;R.S. Bisinotto;L.F. Greco

  116
  Citations

• Use of a stair-step compensatory gain nutritional regimen to program the onset of puberty in beef heifers.

  R C Cardoso;B R C Alves;L D Prezotto;J F Thorson

  114
  Citations

• Efficacy of embryo transfer in lactating dairy cows during summer using fresh or vitrified embryos produced in vitro with sex-sorted semen.

  B.M. Stewart;J. Block;P. Morelli;A.E. Navarette

  106
  Citations

• Age at puberty, total fat and conjugated linoleic acid content of carcass, and circulating metabolic hormones in beef heifers fed a diet high in linoleic acid beginning at four months of age.

  M. R. Garcia;M. Amstalden;C. D. Morrison;D. H. Keisler

  105
  Citations

• Effects of leptin on basal and GHRH-stimulated GH secretion from the bovine adenohypophysis are dependent upon nutritional status.

  D A Zieba;M Amstalden;S Morton;J L Gallino

  91
  Citations

• Chronic administration of recombinant ovine leptin in growing beef heifers: effects on secretion of LH, metabolic hormones, and timing of puberty.

  M. N. Maciel;M. N. Maciel;D. A. Zieba;M. Amstalden;D. H. Keisler

  87
  Citations

• Regulatory Roles of Leptin at the Hypothalamic-Hypophyseal Axis Before and after Sexual Maturation in Cattle

  D.A. Zieba;M. Amstalden;S. Morton;M.N. Maciel

  80
  Citations

• Divergent effects of leptin on luteinizing hormone and insulin secretion are dose dependent.

  Dorota A. Zieba;Marcel Amstalden;Marlon N. Maciel;Duane H. Keisler

  78
  Citations

• Kisspeptin activates the hypothalamic–adenohypophyseal–gonadal axis in prepubertal ewe lambs

  Unknown

  77
  Citations

• Leptin Prevents Fasting-Mediated Reductions in Pulsatile Secretion of Luteinizing Hormone and Enhances Its Gonadotropin-Releasing Hormone-Mediated Release in Heifers

  M.N. Maciel;D.A. Zieba;M. Amstalden;D.H. Keisler

  74
  Citations

• Leptin acts at the bovine adenohypophysis to enhance basal and gonadotropin-releasing hormone-mediated release of luteinizing hormone: differential effects are dependent upon nutritional history.

  M. Amstalden;D. A. Zieba;J. F. Edwards;P. G. Harms

  71
  Citations

• Comparison of three approaches for synchronization of ovulation for timed artificial insemination in Bos indicus-influenced cattle managed on the Texas gulf coast

  Unknown

  68
  Citations