Recombinant porcine leptin reduces feed intake and stimulates growth hormone secretion in swine.
- C. Barb, X. Yan, M. Azain, R. Kraeling, G. B. Rampacek, T. Ramsay
- Biology, MedicineDomestic Animal Endocrinology
- 1998
Effects of naloxone or transient weaning on secretion of LH and prolactin in lactating sows.
- J. D. Armstrong, R. Kraeling, J. Britt
- Medicine, BiologyJournal of Reproduction and Fertility
- 1 May 1988
It is concluded that continuous infusion of naloxone altered secretory patterns of LH and prolactin in sows are mediated in part through a mechanism involving endogenous opioid peptides.
Perspectives for artificial insemination and genomics to improve global swine populations.
- R. Gerrits, J. Lunney, J. Dobrinsky
- Biology, MedicineTheriogenology
- 15 January 2005
Developmental Changes in the Long Form Leptin Receptor and Related Neuropeptide Gene Expression in the Pig Brain1
- Ji Lin, C. Richard Barb, R. Kraeling, G. B. Rampacek
- BiologyBiology of Reproduction
- 1 June 2001
Findings suggest a possible relationship among Ob-Rl and a number of hypothalamic and peripheral peptides in the development of the neuroendocrine axis and these peptides may serve as messengers that link mechanisms that regulate reproduction and energy balance.
Inhibition of ovulation and LH secretion in the gilt after treatment with ACTH or hydrocortisone.
- C. Barb, R. Kraeling, G. B. Rampacek, E. Fonda, T. Kiser
- Medicine, BiologyJournal of Reproduction and Fertility
- 1982
Treatment with ACTH (100 i.u.) or hydrocortisone acetate (250 mg) twice daily for 12 days to increase cortisol concentrations blocked ovulation in all gilts. The preovulatory surge of LH was also…
Current strategies for reproductive management of gilts and sows in North America
- R. Kraeling, S. Webel
- Biology, MedicineJournal of Animal Science and Biotechnology
- 31 January 2015
Ovulation synchronization, single fixed-time AI and induced parturition may lead to farrowing synchronization, which facilitates supervision and reduces stillbirths and piglet mortality.
Serum leptin concentrations, luteinizing hormone and growth hormone secretion during feed and metabolic fuel restriction in the prepuberal gilt.
- C. Barb, J. Barrett, R. Kraeling, G. B. Rampacek
- Chemistry, MedicineDomestic Animal Endocrinology
- 2001
Long form leptin receptor mRNA expression in the brain, pituitary, and other tissues in the pig.
- J. Lin, C. Barb, G. B. Rampacek
- Biology, MedicineDomestic Animal Endocrinology
- 1 July 2000
Plasma estradiol, thyroid hormones, and liver lipid content in laying hens fed different isocaloric diets.
- Y. Akiba, L. S. Jensen, C. Barb, R. Kraeling
- Chemistry, MedicineJournal of NutriLife
- 1 February 1982
Findings show that plasma estrogen and thyroxine levels were influenced by diet composition and that these hormones have a close relation to induction of fatty livers in laying hens.
Absence of an estradiol-induced surge of luteinizing hormone in pigs receiving unvarying pulsatile gonadotropin-releasing hormone stimulation.
- J. Kesner, R. Kraeling, G. B. Rampacek, B. Johnson
- Biology, MedicineEndocrinology
- 1 November 1987
Data indicate that induction of the gonadotropin surge by E2 in the gilt requires CNS input, and the action of E2 on the pituitary in the presence of unvarying GnRH pulsation may be limited to an early transient inhibition of responsiveness to GnRH, with no subsequent direct stimulation during the period of the surge.
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