Concentration of citrate in the mammary secretion of sows during lactogenesis II and established lactation

M.A. Holmes, Peter Hartmann

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The functional significance of citrate in the mammary secretion of six sows was investigated during the second stage of lactogenesis (lactogenesis II) and established lactation. The changes in the concentrations of progesterone and lactose in the maternal blood, and lactose, Na and K in the mammary secretion, suggested that lactogenesis II began during the final day of pregnancy, The concentration of citrate in the mammary secretion of the sows during lactogenesis II was high and varied from 5.4 (SEM 0.5) mm at day 0.5 post partum to 6.8 (SEM 0.4) mm at day 1.5 post partum. There was a decline of approximately 30% in the concentration of citrate in the milk of sows during the first week of lactation. These findings suggest that, in contrast to all other species studied previously, milk citrate is not a harbinger of lactogenesis II in the sow. However, the changes in the concentration of citrate in the mammary secretion of sows may reflect changes in the rate of de novo synthesis of fatty acids that take place in the mammary glands of sows during lactogenesis II and established lactation.
Original languageEnglish
Pages (from-to)319-326
JournalJournal of Dairy Research
Volume60
DOIs
Publication statusPublished - 1993

Fingerprint

milk synthesis
Lactation
Citric Acid
citrates
breasts
sows
Breast
lactation
secretion
Lactose
Milk
lactose
sow milk
Human Mammary Glands
Progesterone
mammary glands
Fatty Acids
Mothers
progesterone
Pregnancy

Cite this

@article{667bc3c063c84f44ba9deb3ccda2d140,
title = "Concentration of citrate in the mammary secretion of sows during lactogenesis II and established lactation",
abstract = "The functional significance of citrate in the mammary secretion of six sows was investigated during the second stage of lactogenesis (lactogenesis II) and established lactation. The changes in the concentrations of progesterone and lactose in the maternal blood, and lactose, Na and K in the mammary secretion, suggested that lactogenesis II began during the final day of pregnancy, The concentration of citrate in the mammary secretion of the sows during lactogenesis II was high and varied from 5.4 (SEM 0.5) mm at day 0.5 post partum to 6.8 (SEM 0.4) mm at day 1.5 post partum. There was a decline of approximately 30{\%} in the concentration of citrate in the milk of sows during the first week of lactation. These findings suggest that, in contrast to all other species studied previously, milk citrate is not a harbinger of lactogenesis II in the sow. However, the changes in the concentration of citrate in the mammary secretion of sows may reflect changes in the rate of de novo synthesis of fatty acids that take place in the mammary glands of sows during lactogenesis II and established lactation.",
author = "M.A. Holmes and Peter Hartmann",
year = "1993",
doi = "10.1017/S0022029900027667",
language = "English",
volume = "60",
pages = "319--326",
journal = "Journal of Dairy Research",
issn = "0022-0299",
publisher = "Cambridge University Press",

}

Concentration of citrate in the mammary secretion of sows during lactogenesis II and established lactation. / Holmes, M.A.; Hartmann, Peter.

In: Journal of Dairy Research, Vol. 60, 1993, p. 319-326.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Concentration of citrate in the mammary secretion of sows during lactogenesis II and established lactation

AU - Holmes, M.A.

AU - Hartmann, Peter

PY - 1993

Y1 - 1993

N2 - The functional significance of citrate in the mammary secretion of six sows was investigated during the second stage of lactogenesis (lactogenesis II) and established lactation. The changes in the concentrations of progesterone and lactose in the maternal blood, and lactose, Na and K in the mammary secretion, suggested that lactogenesis II began during the final day of pregnancy, The concentration of citrate in the mammary secretion of the sows during lactogenesis II was high and varied from 5.4 (SEM 0.5) mm at day 0.5 post partum to 6.8 (SEM 0.4) mm at day 1.5 post partum. There was a decline of approximately 30% in the concentration of citrate in the milk of sows during the first week of lactation. These findings suggest that, in contrast to all other species studied previously, milk citrate is not a harbinger of lactogenesis II in the sow. However, the changes in the concentration of citrate in the mammary secretion of sows may reflect changes in the rate of de novo synthesis of fatty acids that take place in the mammary glands of sows during lactogenesis II and established lactation.

AB - The functional significance of citrate in the mammary secretion of six sows was investigated during the second stage of lactogenesis (lactogenesis II) and established lactation. The changes in the concentrations of progesterone and lactose in the maternal blood, and lactose, Na and K in the mammary secretion, suggested that lactogenesis II began during the final day of pregnancy, The concentration of citrate in the mammary secretion of the sows during lactogenesis II was high and varied from 5.4 (SEM 0.5) mm at day 0.5 post partum to 6.8 (SEM 0.4) mm at day 1.5 post partum. There was a decline of approximately 30% in the concentration of citrate in the milk of sows during the first week of lactation. These findings suggest that, in contrast to all other species studied previously, milk citrate is not a harbinger of lactogenesis II in the sow. However, the changes in the concentration of citrate in the mammary secretion of sows may reflect changes in the rate of de novo synthesis of fatty acids that take place in the mammary glands of sows during lactogenesis II and established lactation.

U2 - 10.1017/S0022029900027667

DO - 10.1017/S0022029900027667

M3 - Article

VL - 60

SP - 319

EP - 326

JO - Journal of Dairy Research

JF - Journal of Dairy Research

SN - 0022-0299

ER -