dc.contributor.author |
Brake, D.W. |
|
dc.contributor.author |
Titgemeyer, Evan C. |
|
dc.contributor.author |
Bradford, Barry J. |
|
dc.contributor.author |
Macgregor, C.A. |
|
dc.date.accessioned |
2012-09-07T15:39:44Z |
|
dc.date.available |
2012-09-07T15:39:44Z |
|
dc.date.issued |
2012-09-07 |
|
dc.identifier.uri |
http://hdl.handle.net/2097/14648 |
|
dc.description |
Dairy Research, 2011 is known as Dairy Day, 2011 |
en_US |
dc.description.abstract |
Twenty-five Holstein cows were fed 5 different diets to evaluate amounts of metabolizable
methionine provided to dairy cows from a mechanically extracted soybean meal (meSBM) with
methionine added during manufacture. The control diet was designed to be deficient in metabolizable
methionine supply. Two amounts of methionine were added from either a commercially
available ruminally protected product (RPMet) or from a meSBM with methionine added
during manufacture (meSBM-Met). Average milk yield was 98.8 lb/day, average milk fat was
2.81%, and milk urea nitrogen (MUN) averaged 8.6 mg/dL. Milk protein yield was not responsive
to metabolizable methionine supply, suggesting that milk protein yield was not an optimal
criterion for assessing metabolizable methionine supply. Milk protein content was greater when
methionine was provided as RPMet than meSBM-Met. In addition, RPMet linearly increased
plasma free methionine, but meSBM-Met did not. Body condition score (BCS; 1=thin and
5 =fat) was increased linearly by meSBM-Met, but responses were quadratic to RPMet. Methionine
added to meSBM during manufacture did not appear to be available to dairy cows, likely
because of extensive ruminal degradation. |
en_US |
dc.publisher |
Kansas Agricultural Experiment Station and Cooperative Extension Service |
en_US |
dc.relation.isPartOf |
Dairy Day, 2011 |
en_US |
dc.relation.isPartOf |
Kansas Agricultural Experiment Station contribution; no. 12-176-S |
en_US |
dc.relation.isPartOf |
Report of progress (Kansas Agricultural Experiment Station and Cooperative Extension Service); 1057 |
en_US |
dc.subject |
Dairy |
en_US |
dc.subject |
Methionine |
en_US |
dc.subject |
Dairy cow |
en_US |
dc.subject |
Soybean meal |
en_US |
dc.title |
Evaluation of methionine availability to dairy cows
when added to mechanically extracted soybean meal
with soy gums |
en_US |
dc.type |
Conference paper |
en_US |
dc.date.published |
2011 |
en_US |
dc.citation.epage |
25 |
en_US |
dc.citation.spage |
20 |
en_US |
dc.description.conference |
Dairy Day, 2011, Kansas State University, Manhattan, KS, 2011 |
|
dc.contributor.authoreid |
etitgeme |
en_US |
dc.contributor.authoreid |
bbradfor |
en_US |