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Effects of high air temperatures on milk efficiency in dairy cows
dairy cows milk production milk composition high air temperatures elevation housing breed cooling
2015/6/2
26 herds with 71 586 individual records were used. We tested a hypothesis that milk efficiency was influenced by the elevation of the farm, housing system, breed, area of altitude, and by the cooling ...
The relationship between linear type traits and stayability of Czech Fleckvieh cows
cattle stayability type traits correlation
2015/6/2
The relationship between linear type traits and stayability was analyzed in 34 492 Czech Fleckvieh cows. Pearson correlation coefficients were calculated between linear type traits and stayability of ...
Effects of Replacement of Concentrate Mixture by Broccoli Byproducts on Lactating Performance in Dairy Cows
Broccoli Byproducts Rumen Fermentation Milk Yield Milk Composition
2016/5/19
The objective of the present study was to determine the effects of feeding pelletized broccoli byproducts (PBB) on milk yield and milk composition in dairy cows. In Trial 1, an in vitro gas test deter...
Effects of Corn and Soybean Meal Types on Rumen Fermentation, Nitrogen Metabolism and Productivity in Dairy Cows
Corn Soybean Meal Nitrogen Metabolism Productivity Dairy Cow
2016/5/18
Twelve multiparous Holstein dairy cows in mid-lactation were selected for a replicated 4×4 Latin square design with a 2 ×2 factorial arrangement to investigate the effects of corn and soybean meal (SB...
Changes of Serum Calcium Concentration, Frequency of Ruminal Contraction and Feed Intake Soon after Parturition of Dairy Cows Fed Difructose Anhydride III
Dairy Cows Difructose Anhydride III Feed Intake Serum Calcium Concentration Ruminal Contraction
2016/5/17
Requirements to control the large decrease in serum calcium (Ca) due to parturition and to increase the feed intake soon after parturition have been well accepted in dairy cows. This study was aimed t...
Effects of Combination of Rice Straw with Alfalfa Pellet on Milk Productivity and Chewing Activity in Lactating Dairy Cows
Alfalfa Pellet Chewing Activity Dairy Cattle Milk Productivity Rice Straw Timothy
2016/5/16
An experiment was conducted to determine the effects of diets containing coarse-texture rice straw and small particle size alfalfa pellets as a part of total mixed ration (TMR) on milk productivity an...
Effect of oral administration of propylene glycol during periparturient period on blood biochemical parameters and liver triacylglycerol accumulation in postparturient dairy cows
dairy cow fatty liver propylene glycol
2011/1/13
Effect of propylene glycol administered during the periparturient period on blood biochemical parameters and liver triacylglycerol accumulation was studied in 35 dairy cows. Sixteen control cows were ...
THE YIELD AND CHEMICAL COMPOSITION OF MILK OF COWS FED THE RATION WITH PROTEIN-FIBROUS-EXTRUDERATE
cows extruderate milk yield and chemical composition
2010/12/7
The present research evaluated the effect of protein-fi brous extruderate on yield and chemical composition of milk obtained cows. Protein-fi brous extruderate produced from dry sida (Sida hermaphrodi...
RELATIONS BETWEEN KAPPA-CASEIN POLYMORPHISM (CSN3) AND MILK PERFORMANCE TRAITS IN HEIFER COWS
cows milk proteins kappa-casein gene
2010/12/7
The undertaken study aimed at determining relations between kappa-casein polymorphism and milk performance traits in population of 304 Holstein-Friesian heifer cows bred in fi ve herds in the Kuyavian...
RELATIONSHIPS BETWEEN CYTOLOGICAL QUALITY AND COMPOSITION OF MILK AND THE EFFECT OF SOME ENVIRONMENTAL FACTORS ON THE FREQUENCY OF RECURRENT MASTITIS IN COWS
milk mastitis somatic cells
2010/12/6
Data on somatic cell counts (SCC) in test-day milkings of 63621 cows from the active population of the Pomerania and Kujawy regions were analysed for the years 1998–2002. A negative correlation was fo...
Omasal sampling technique in estimation of the site and extent of mineral absorption in dairy cows fed rapeseed and soybean expellers
calcium magnesium potassium phosphorus sodium sulphur digestibility
2010/8/10
The effects of rapeseed and soybean expeller on digestion of sodium, potassium, calcium, magnesium, phosphorus and sulphur in dairy cows were investigated in a study conducted as an incomplete Latin s...
BLOOD PLASMA UREA CONCENTRATION AND ITS RELATIONSHIP WITH MILK PRODUCTION PARAMETERS IN CZECH PIED COWS
milk protein milk fat lactose blood plasma urea
2010/11/30
Experimental groups of 18 Czech Pied cows were observed in the course of 12 consecutive calendar months in order to describe the relationship between urea concentration in blood plasma and milk produc...
Effect of anionic salts on some blood and urine minerals, acid-base balance and udder oedema of dry pregnant cows
calcium cows ion balance minerals parturient paresis udder oedema
2010/8/13
The objective of this study was to determine the effect of an anionic diet on mineral metabolism, acid-base status and udder oedema of dairy cows fed grass silage based diets during the dry period. Ei...