Induction of and recovery from milk fat depression occurs progressively in dairy cows switched between diets that differ in fiber and oil concentration

Daniel E. Rico, Kevin J. Harvatine

Research output: Contribution to journalArticle

75 Citations (Scopus)

Abstract

Milk fat depression (MFD) caused by intermediates of ruminal biohydrogenation commonly occurs in dairy cattle. The time course of recovery from MFD is important to mechanistic investigation and management of the condition. Nine cows were used in a repeated design, allowing analysis of recovery from diet-induced MFD. A high-fiber, low-oil diet was fed during the control and recovery periods, and a low-fiber, high-oil (LFHO) diet was fed during the induction period. Milk yield was not affected by treatment. Milk fat percentage and yield decreased progressively during induction and were lower by d 3 and 5, respectively. Milk fat concentration and yield increased progressively when cows were fed the recovery diet and were not different from control on d 19 and 15, respectively. Yield of de novo synthesized fatty acids (FA) decreased progressively during the induction period and was lower than that of controls by d 5. A biphasic response was seen for milk fat trans isomers, where trans-11 C18:1 and cis-9,. trans-11 conjugated linoleic acid (CLA) were elevated initially and trans-10 C18:1 and trans-10,. cis-12 CLA increased progressively during the induction period. A similar biphasic response was seen during recovery from MFD, with trans-10 C18:1 and trans-10,. cis-12 rapidly decreasing initially and trans-11 C18:1 and cis-9,. trans-11 CLA increasing slightly above control levels during the second phase. Recovery from diet-induced MFD occurs gradually with a short lag when dietary fiber and oil concentrations are corrected. This time course provides a framework to identify factors causing MFD and set expectations during recovery from MFD.

Original languageEnglish (US)
Pages (from-to)6621-6630
Number of pages10
JournalJournal of dairy science
Volume96
Issue number10
DOIs
StatePublished - Oct 1 2013

Fingerprint

milk fat
Oils
Milk
dietary fiber
dairy cows
Fats
Diet
oils
diet
Conjugated Linoleic Acids
conjugated linoleic acid
cows
biohydrogenation
milk fat percentage
milk fat yield
Unsaturated Dietary Fats
dairy cattle
Dietary Fiber
milk yield
fatty acids

All Science Journal Classification (ASJC) codes

  • Food Science
  • Animal Science and Zoology
  • Genetics

Cite this

@article{e6c891c8db334485b003829d12bae65e,
title = "Induction of and recovery from milk fat depression occurs progressively in dairy cows switched between diets that differ in fiber and oil concentration",
abstract = "Milk fat depression (MFD) caused by intermediates of ruminal biohydrogenation commonly occurs in dairy cattle. The time course of recovery from MFD is important to mechanistic investigation and management of the condition. Nine cows were used in a repeated design, allowing analysis of recovery from diet-induced MFD. A high-fiber, low-oil diet was fed during the control and recovery periods, and a low-fiber, high-oil (LFHO) diet was fed during the induction period. Milk yield was not affected by treatment. Milk fat percentage and yield decreased progressively during induction and were lower by d 3 and 5, respectively. Milk fat concentration and yield increased progressively when cows were fed the recovery diet and were not different from control on d 19 and 15, respectively. Yield of de novo synthesized fatty acids (FA) decreased progressively during the induction period and was lower than that of controls by d 5. A biphasic response was seen for milk fat trans isomers, where trans-11 C18:1 and cis-9,. trans-11 conjugated linoleic acid (CLA) were elevated initially and trans-10 C18:1 and trans-10,. cis-12 CLA increased progressively during the induction period. A similar biphasic response was seen during recovery from MFD, with trans-10 C18:1 and trans-10,. cis-12 rapidly decreasing initially and trans-11 C18:1 and cis-9,. trans-11 CLA increasing slightly above control levels during the second phase. Recovery from diet-induced MFD occurs gradually with a short lag when dietary fiber and oil concentrations are corrected. This time course provides a framework to identify factors causing MFD and set expectations during recovery from MFD.",
author = "Rico, {Daniel E.} and Harvatine, {Kevin J.}",
year = "2013",
month = "10",
day = "1",
doi = "10.3168/jds.2013-6820",
language = "English (US)",
volume = "96",
pages = "6621--6630",
journal = "Journal of Dairy Science",
issn = "0022-0302",
publisher = "Elsevier Limited",
number = "10",

}

TY - JOUR

T1 - Induction of and recovery from milk fat depression occurs progressively in dairy cows switched between diets that differ in fiber and oil concentration

AU - Rico, Daniel E.

AU - Harvatine, Kevin J.

PY - 2013/10/1

Y1 - 2013/10/1

N2 - Milk fat depression (MFD) caused by intermediates of ruminal biohydrogenation commonly occurs in dairy cattle. The time course of recovery from MFD is important to mechanistic investigation and management of the condition. Nine cows were used in a repeated design, allowing analysis of recovery from diet-induced MFD. A high-fiber, low-oil diet was fed during the control and recovery periods, and a low-fiber, high-oil (LFHO) diet was fed during the induction period. Milk yield was not affected by treatment. Milk fat percentage and yield decreased progressively during induction and were lower by d 3 and 5, respectively. Milk fat concentration and yield increased progressively when cows were fed the recovery diet and were not different from control on d 19 and 15, respectively. Yield of de novo synthesized fatty acids (FA) decreased progressively during the induction period and was lower than that of controls by d 5. A biphasic response was seen for milk fat trans isomers, where trans-11 C18:1 and cis-9,. trans-11 conjugated linoleic acid (CLA) were elevated initially and trans-10 C18:1 and trans-10,. cis-12 CLA increased progressively during the induction period. A similar biphasic response was seen during recovery from MFD, with trans-10 C18:1 and trans-10,. cis-12 rapidly decreasing initially and trans-11 C18:1 and cis-9,. trans-11 CLA increasing slightly above control levels during the second phase. Recovery from diet-induced MFD occurs gradually with a short lag when dietary fiber and oil concentrations are corrected. This time course provides a framework to identify factors causing MFD and set expectations during recovery from MFD.

AB - Milk fat depression (MFD) caused by intermediates of ruminal biohydrogenation commonly occurs in dairy cattle. The time course of recovery from MFD is important to mechanistic investigation and management of the condition. Nine cows were used in a repeated design, allowing analysis of recovery from diet-induced MFD. A high-fiber, low-oil diet was fed during the control and recovery periods, and a low-fiber, high-oil (LFHO) diet was fed during the induction period. Milk yield was not affected by treatment. Milk fat percentage and yield decreased progressively during induction and were lower by d 3 and 5, respectively. Milk fat concentration and yield increased progressively when cows were fed the recovery diet and were not different from control on d 19 and 15, respectively. Yield of de novo synthesized fatty acids (FA) decreased progressively during the induction period and was lower than that of controls by d 5. A biphasic response was seen for milk fat trans isomers, where trans-11 C18:1 and cis-9,. trans-11 conjugated linoleic acid (CLA) were elevated initially and trans-10 C18:1 and trans-10,. cis-12 CLA increased progressively during the induction period. A similar biphasic response was seen during recovery from MFD, with trans-10 C18:1 and trans-10,. cis-12 rapidly decreasing initially and trans-11 C18:1 and cis-9,. trans-11 CLA increasing slightly above control levels during the second phase. Recovery from diet-induced MFD occurs gradually with a short lag when dietary fiber and oil concentrations are corrected. This time course provides a framework to identify factors causing MFD and set expectations during recovery from MFD.

UR - http://www.scopus.com/inward/record.url?scp=84884354712&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84884354712&partnerID=8YFLogxK

U2 - 10.3168/jds.2013-6820

DO - 10.3168/jds.2013-6820

M3 - Article

C2 - 23958016

AN - SCOPUS:84884354712

VL - 96

SP - 6621

EP - 6630

JO - Journal of Dairy Science

JF - Journal of Dairy Science

SN - 0022-0302

IS - 10

ER -