Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Karin Knappstein"'
Autor:
Edwin Westreicher-Kristen, Karin Knappstein, Joachim Molkentin, Andreas Susenbeth, Franziska Schulz
Publikováno v:
Journal of Dairy Science. 101:7156-7167
This study aimed to evaluate the effect of replacing maize silage plus soybean meal with red clover silage (RCS) plus wheat on the fatty acid (FA) profile in the milk fat of cows. Forty-four lactating German Holstein cows were used in a 4 × 4 Latin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a21a22851fe9837b43b8f21f157f155
https://doi.org/10.3168/jds.2017-14335
https://doi.org/10.3168/jds.2017-14335
Autor:
Karin Knappstein, Joachim Molkentin, Edwin Westreicher-Kristen, Andreas Susenbeth, Franziska Schulz
Publikováno v:
Journal of Dairy Science. 101:1216-1226
The objectives of this study were to evaluate the effects of replacing maize silage plus soybean meal with red clover silage (RCS) plus wheat on feed intake, diet digestibility, N partitioning, urinary excretion of purine derivatives, and milk produc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9942694101a5809e599b3f2f7dc220da
https://doi.org/10.3168/jds.2017-13605
https://doi.org/10.3168/jds.2017-13605
Autor:
A. Henke, Joachim Molkentin, Mario Hasler, Edwin Westreicher-Kristen, Andreas Susenbeth, Karin Knappstein, Uta Dickhoefer
Publikováno v:
Journal of Dairy Science. 100:6229-6238
The aim of this study was to examine the capacity of quebracho tannin extract (QTE) to modulate the fatty acid (FA) profile in the milk fat of cows. Fifty Holstein cows yielding 33.2 ± 8.2 kg/d of milk were divided into 2 groups. The cows were fed a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff5cdbce2396872d52226fff6ef938ae
https://doi.org/10.3168/jds.2016-12149
https://doi.org/10.3168/jds.2016-12149
Autor:
A. Henke, Joachim Molkentin, Andreas Susenbeth, J. Castro-Montoya, Karin Knappstein, Uta Dickhoefer
Publikováno v:
Animal Feed Science and Technology. 214:22-33
The purpose of this study was to explore the potential of milk odd and branched-chain fatty acids (OBCFA) as biomarkers for rumen microbial protein synthesis in dairy cows, and to study the effects of diets supplemented with different levels of quebr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::727b93cf2d4e09c10f780388e8cf880e
https://doi.org/10.1016/j.anifeedsci.2016.01.016
https://doi.org/10.1016/j.anifeedsci.2016.01.016
Publikováno v:
Journal of Animal Physiology and Animal Nutrition. 97:1091-1103
Non-saleable milk (waste milk, WM) is contaminated with an undefined spectrum of potentially harmful pathogens and antimicrobial residues. The objective of this study was to determine the impact of feeding bulk milk (BM) or WM - both pasteurized or n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::819cb19a906bbac0d569cee258b21d6b
https://doi.org/10.1111/jpn.12019
https://doi.org/10.1111/jpn.12019
Publikováno v:
Small Ruminant Research. 94:161-166
Based on a repeated sampling the influence of an intramammary infection on the somatic cell count (SCC), the content of lactoferrin (Lf) and the activity of N-acetyl-β- d -glucosaminidase (NAGase) in goats’ milk was investigated. 58 dairy goats (G
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6dbe19dbead586527b40755c817ea808
https://doi.org/10.1016/j.smallrumres.2010.07.022
https://doi.org/10.1016/j.smallrumres.2010.07.022
Autor:
Gertraud Suhren, Karin Knappstein
Publikováno v:
Analytica Chimica Acta. 529:97-101
A liquid chromatography (LC) method for the determination of the polypeptide antibiotic colistin (COL) was developed and applied to incurred milk samples from cows treated by a drug containing COL and ampicillin. At maximum residue limit (MRL) concen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a113850efff39d8114188c6f902e2cd1
https://doi.org/10.1016/j.aca.2004.09.030
https://doi.org/10.1016/j.aca.2004.09.030
Publikováno v:
Analytica Chimica Acta. 483:241-249
Different milking frequencies observed with cows milked with automatic milking systems (AMS) may influence the excretion of veterinary drugs in milk of treated cows. Experiments (4–5 cows per experimental group) with two β-lactam antibiotic-based
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2cae248a2e8c978f196cccf6797ecd6
https://doi.org/10.1016/s0003-2670(02)01505-2
https://doi.org/10.1016/s0003-2670(02)01505-2
Autor:
Karin Knappstein, Gertraud Suhren
Publikováno v:
Analytica Chimica Acta. 483:363-372
A liquid chromatography method for the determination of the cephalosporin cefquinome (CEF) in milk was developed/modified on the basis of published papers. Mean recovery rates for CEF and for the internal standard sulfamethizole (SMZ) were in the sam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::425b484bb557eb6e2782032861ec7a1d
https://doi.org/10.1016/s0003-2670(02)01473-3
https://doi.org/10.1016/s0003-2670(02)01473-3
Autor:
Gertraud Suhren, Karin Knappstein
Publikováno v:
The Analyst. 123:2797-2801
An LC method for the determination of the aminoglycosides streptomycin (STR) and dihydrostreptomycin (DHS) in milk was developed/modified on the basis of published papers. Mean recoveries were 87 and 95% for STR and DHS, respectively. Recoveries are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a26dcc76977f38ed93746bda9bd2472
https://doi.org/10.1039/a805050c
https://doi.org/10.1039/a805050c