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Feeding ruminally protected methionine to pre- and postpartum dairy cows: effect on milk performance, milk composition and blood parameters
methionine milk yield milk components
2015/6/8
An experiment was conducted to evaluate the effect of ruminally protected methionine (Mepron? Degussa AG, Germany) in dairy cows. Three weeks before calving 36 cows (Holstein and Czech Fleckvieh breed...
Associations between the bovine PPARGC1A gene and milk production traits
cattle PPARGC1A gene PCR-RLP milk traits
2015/6/8
The aim of this study was to investigate associations between PPARGC1A genotypes and haplotypes and milk production traits. The study included 181 Jersey cows. The genotypes were identified by the PCR...
Effect of duodenal infusions of leucine on milk yield and plasma amino acids in dairy cows
leucine duodenal infusion milk plasma amino acids dairy cow
2015/6/8
Four high-yielding lactating Holstein cows fitted with duodenal cannulas were used in the experiment. Cows were divided into 2 groups – control (Control) with leucine deficiency and experimental (Leuc...
Activities of N-acetyl-β-d-glucosaminidase and glutathione peroxidase in bovine colostrum and milk
glutathione peroxidase N-acetyl-glucosaminidase colostrum cow
2015/6/8
Parturition and post partum period are susceptible for antioxidative/oxidative imbalance as well as inflammatory processes related to either uterus or mammary gland. Fifteen Holstein-Friesian cows wer...
Enhancing unsaturated fatty acids in ewe's milk by feeding rapeseed or linseed oil
unsaturated fatty acids milk ewe linseed oil rapeseed oil
2015/6/8
The aim of our research was to evaluate whether rapeseed and linseed oils used as feed additives to ewe's diets allow to achieve the higher secretion of unsaturated fatty acids into milk with extended...
ANXA9, SLC27A3, FABP3 and FABP4 single nucleotide polymorphisms in relation to milk production traits in Jersey cows
gene polymorphism dairy cattle milk traits
2015/6/8
Milk components originating from blood plasma substrates are synthesized in epithelial cells of the mammary gland. Milk lipids are synthesized from fatty acids which bind to specific proteins – FABPs ...
The effects of feeding various forages on fatty acid composition of bovine milk fat: A review
review bovine milk fat milk fat profile alteration fatty acids CLA rumenic acid vaccenic acid pasture fresh forage silage hay
2015/6/8
The nutritional image of bovine milk fat has suffered for years because of the association of saturated fatty acids and coronary heart disease. Thus the alteration of fatty acid composition has been a...
Fatty acid composition of cow milk fat produced on low-input mountain farms
milk fatty acids CLA
2015/6/8
The fatty acid (FA) composition of bulk milk fat was examined on three mountain dairy farms in the Czech Republic. Milk samples were collected in the period of indoor grass silage feeding (November朅pr...
Contact and non-contact thermometry in the milk acquisition process
temperatures non-contact thermometer mammary gland milking house
2015/6/5
Temperatures of the northern wall, ceiling and floor of a 2 × 12 milking house as well as of a waiting area in front of the milking house were measured for 24 hours a day in the winter season with an ...
Effect of dietary sources of roasted oilseeds on blood parameters and milk fatty acid composition
conjugated linoleic acid milk fat lactating dairy cattle plasma parameters soybean
2015/6/5
The aim of this experiment was to investigate the effect of supplementing the basal diet with oilseeds on blood parameters and composition of milk fatty acids, especially conjugated linoleic acid (CLA...
Reliability of results of milk urea analysis by various methods using artificial milk control samples
cow milk urea method of analysis result reliability recovery correlation
2015/6/5
The milk urea concentration (MUC) is a respected indicator of the health and nutrition status of dairy cows. It is in relation to their reproduction performance, longevity and technological milk indic...
Lead and cadmium levels in raw cow’s milk from an industrialised Croatian region determined by electrothermal atomic absorption spectrometry
lead cadmium raw cow’s milk
2015/6/5
A simple and accurate method for lead and cadmium determination in raw cow’s milk by electrothermal atomic absorption spectrometry (ET-AAS) is described. Milk from fifteen farms near Križ in Zagr...
Effect of the stage of lactation on milk composition, its properties and the quality of rennet curdling in East Friesian ewes
stage of lactation ewe milk composition milk properties quality of rennet curdling East Friesian
2015/6/5
The evaluation of the effect of the stage of lactation on milk composition, its properties and the quality of rennet curdling was carried out over the period of three successive years using milk sampl...
Relationships between the results of various methods of urea analysis in native and enriched milk
cow milk urea analytical methods result reliability recovery correlation
2015/6/5
Milk urea concentration (MUC) is a suitable indicator of the health and nutrition state of dairy cows. MUC is in relation to their reproduction performance, longevity and technological milk indicators...
Analysis of raw cow milk quality according to free fatty acid contents in the Czech Republic
cow raw milk bulk milk sample mammary gland fat free fatty acids crude protein casein lactose somatic cell count total mesophilic bacteria count psychrotrophic bacteria count urea mechanical stress lipolysis
2015/6/5
The concentration (c) of free fatty acids (FFAs) in milk is an indicator of dairy cow nutrition, milk straining, its bacterial contamination and storage quality. High FFA concentrations (cs) caused by...