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Lactation
Resource Library


This resource is a collection of information related to the physiology of lactation, the role of homrones in regulation of milk production, the role of milk removal in milk production, milk ejection, and comparative lactation of various species. Look under the headings below and choose the term that is closest to your topic of interest.
Overview
  • Galactopoeisis
  • Galactopoietic hormones
  • Removal of milk
  • Milk ejection
Role of Hormones
  • Phases of lactation
  • DNA
  • Cell Numbers
Prolactin
  • Rabbits
  • Rats
  • Ruminants
  • Receptors
  • Suckling induced
Photoperiod
  • Growth
  • Mammary growth
  • Milk yield
bST
  • Somatotropin
  • Nursing
  • Placental lactogen
Adrenal and Thyroid Hormones
  • Adrenal corticoids
  • Thyroid hormones
Ovarian Steriods
  • Ovariectomy
  • Concurrent pregnancy
  • Pharmacologic estrogen
Milk Removal
  • Is required
  • Stimulation intensity
  • Other observations
Autocrine Control
  • Local factors
  • Feedback inhibitor of lactation
  • When milk is removed
  • When milk is not removed
Secretion Rate
  • Milk yield is dependent
  • Secretion rate
  • Inhibition of secretion
Milking Interval
  • 2X/day milking
  • Milk composition
Milking Frequency
  • Frequency of milk removal
  • 3X/day vs 2X/day
  • Response to 3X/day
  • Other frequencies
Milk Ejection
  • Milk ejection reflex
  • Afferent pathway
  • Efferent pathway

Oxytocin

  • Oxytocin is a peptide
  • Hypothalamic Nuclei
  • Oxytocin synthesis
  • Oxytocin surge
  • Other roles of oxytocin

Mammary Nerves & Stress

  • Autonomic nervous system
  • Epinephrine & norepinephrine
  • Other mechanisms of ejection
Residual Milk
  • Proportion of residual milk
  • Oxytocin and residual milk
  • Proportion of milk present

Mammary Involution

  • Maintenance of lactation function
  • Lactation in decline
  • Bovine mammary involution
  • Apoptosis and involution

Dry Period

  • Dry period and subsequent lactation
  • Dry period length
  • Dry period summary

Comparative Lactation

Other Factors

  • Genetics
  • Stage of lactation
  • Milking practices
  • Age and size
  • Estrous cycle and pregnancy
  • Environment
  • Metabolic diseases

Study Questions


Click here to view a Lactation Practice Quiz.

Lactation
 

Information contained herein is subject to change without notice.
Copyright® 2009 by Walter L. Hurley, University of Illinois, Urbana-Champaign