The milk freezing point (MFP) is used for the control of food chain quality especially possible adulteration with water. A crucial issue acceptance legislative discrimination limit (RLDL) MFP standard quality. aim was to explain relations between and spectrum indicators (MI) impacts on technological properties. 76 bulk samples (BMS) from Holstein (1, n = 36) Czech Fleckvieh (2, 40) cattle were analyzed 48 MIs. dairy cows relatively healthy as occurrence production disorders. BMSs taken...

An experiment was carried out on four dry Holstein cows fitted with rumen cannulas that were divided into two groups. The crossover design 4 periods of 3 weeks. Each period consisted a 17-day preliminary followed by 4-day experimental period. Cows fed twice daily the total mixed ration based maize silage and concentrate. Control (Control) received basal diets while animals (Yeast) diet supplemented 3.0 g live yeast (BIOSAF Sc 47, Lesaffre, France) at each feeding. During ruminal pH redox...

This study presents the results of an experiment in which effect addition a yeast culture (Saccharomyces cerevisiae, Strain 47) on rumen fermentation was studied thirty-six dairy cows Holstein breed.The animals were divided into one control and five experimental groups. Each group involved 6 individuals. The received diet consisting good maize silage with higher dry matter content (16 kg), clover-grass haylage (l6 meadow hay (3 kg) supplementary feed mixture (7.5 kg). rations fed to as total...

The objective of this study was to determine the effect supplemental lysine (Lys), methionine (Met) or both amino acids added in form rumen-protected (RP) tablets with copolymer coating a diet dairy cows on yield and composition milk concentration plasma (AA). experiment carried out four high-yielding lactating Holstein average production 33.5 kg/day Latin square design. treatments were as follows: C - control without AA supplementation, L plus supplement RP Lys, M Met ML Lys. divided into 4...

A total of 36 samples feed - 19 hays and 17 silages were used for estimation in vivo vitro digestibility. The organic matter digestibility (OMD) was estimated by two techniques (method Tilley Terry two-stage pepsin-cellulase method (Pepcel)). regression equations calculated from the results obtained experiment. provided consistent OMD both groups roughages: = 14.7 + 0.782 × [Tilley Terry] (n 18; R2 0.76); 36.3 0.513 16; 0.75) silages, respectively. Different accuracy found out Pepcel method:...

The objective of this study was to determine the effect dietary soybean phytoestrogens, daidzein and genistein, on yield composition milk excretion phytoestrogens their metabolites into milk. experiment carried out four lactating Holstein cows as replicated Latin square in a double reversal design. divided periods 42 days consisting 21-day preliminary period experimental period. Cows were two groups. control group (Group R) fed diet based extruded rapeseed cake while S) received containing...

The aim of the study was to evaluate effect extruded rapeseed cake in diets dairy cows on changes milk fatty acid profile and iodine content thyroid gland status. An experiment carried out four lactating Holstein divided into 2 groups - experimental (R) fed a diet based control (S) full-fat soya. 4 periods 42 days (21 preliminary period 21 period). Samples blood were taken three times week during period. DMI not affected by treatment (P > 0.05). Milk yield 4% FCM lower R compared S <...

The objective of this study was to determine rumen degradability and total digestibility flavonolignans from a milk thistle fruit expeller in dairy cows considering production changes plasma flavonolignans. experiment carried out on three lactating Holstein divided into periods as follows: preliminary period (Pr, 3 days) used for the diet stabilization followed by adaptation (A, 6 which treatment applied balance (B, 4 days). Cows were fed individually twice day (6:40 16:40 h) ad libitum...

1. Relationship between concentration of health important groups fatty acids and components technological properties in cow milk Oto Hanuš, Eva Samková, Jiří Špička, Kamila Sojková, Kristýna Hanušová, Tomáš Kopec, Marcela Vyletělová, Radoslava Jedelská Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis CrossRef

Abstract. The possible genetic impact of sire on cattle populations, herd milk yield and traits (fat protein) have been described in the literature along with its some indicators (MIs) as somatic cell count, urea ketones. There is a dearth information series other MIs (physical, chemical, health, technological). goal this study was to assess effect wide range including technological properties Czech Fleckvieh suggest future breeding trends. A (n=37) investigated individual samples (MSs). 191...

In this study, nutritive values of rapeseed (R), meal-expeller A (RM-A), B (RM-B) and extracted meal (ERM) were compared. The trials performed using the in sacco method with three steers Czech Fleckvieh breed, which fitted a permanent ruminal cannula. Nylon bags samples incubated rumen for 2, 4, 8, 16, 24 48 hours. effective degradability (ED) crude protein (CP) was calculated at 0.08, 0.06 0.04 1/h particulate outflow rates (k), obtained ED 65.4, 70.8 77.4% R, 86.7, 88.1 89.7% RM-A, 82.2,...

1. Meta-analysis to predict the effects of metabolizable amino acids on dairy cattle performance I.J. Lean, M.B. de Ondarza, C.J. Sniffen, J.E.P. Santos, K.E. Griswold Journal Dairy Science CrossRef

The aim of the study was to determine possible changes in isofl avones concentration cheese made from either control or avone-enriched milk during manufacturing and ripening.The experiment carried out on four high-yielding lactating Holstein cows that were divided into two groups with similar mean yield.The group fed a diet based extruded rapeseed cake (C) while experimental animals full-fat soya (S).The form cross-over design 2 periods 14 days (a 10-d preliminary period 4-d period).Cows...

Four high-yielding lactating Holstein cows fitted with duodenal cannulas were used in the experiment. Cows divided into 2 groups - control (Control) leucine deficiency and experimental (Leucine) a supplement. The experiment was 4 periods of 7 days, each consisting 3-day preliminary period followed by 4-day period. In first period, assigned to Control remaining Leucine. subsequent switched other treatment. fed individually twice daily basal diet based on maize silage, lucerne hay supplemental...

The aim of this study was to continuously monitor ruminal pH and redox potential individual dry cows using a newly developed wireless device. Three Holstein fitted with rumen cannulas were used for the measurement (Eh) experiment carried out in period 14 days consisting 10-day preliminary followed by 4-day period. Cows fed twice daily diet based on maize silage, lucerne hay concentrate. During monitored probe. Average feed intake throughout 8.2 kg/day. mean almost identical 21 25, being 6.79...

Milk freezing point (MFP) is important quality indicator.Aim was to analyse the relationships of MFP selected udder health milk indicators (MIs) by comparison between cows (reference), goats and sheep.Bulk samples came from 3 herds Czech Fleckvieh (B, n 93) 1 goat herd sheep fl ock (White short-haired, W, 60; Tsigai, C, 60).Animal nutrition performed under typical country conditions.MIs which were investigated: DM, dry matter; SNF, solid non fat; L, lactose (all in %); SCC, somatic cell...

The objective of this study was to evaluate the interaction effect maize grain texture (dent vs semi-flint) and two different stages maturity (1/2 3/4 milk line) on ruminal starch degradability total tract digestibility using in situ combined situ-in vitro methods, respectively. content whole plant dry matter 324.6 399.5 g/kg line, respectively) for dent 330.2 401.3 semi-flint maize. Organic nutrients (neutral detergent fibre, crude protein, ether extract, starch), 1000-grain weight,...

The aim of this study was to determine the influence leucine supplement in form rumen-protected tablets on milk yield and composition plasma amino acids four high-yielding lactating Holstein cows. experiment carried out as a cross-over procedure divided into 4 periods 14 d (10 preliminary period experimental period). Cows were fed ad libitum diet based maize silage, lucerne hay supplemental mixture. diet, defficient methionine, lysine, leucine, supplemented with methionine+lysine (Control)...

The objective of this study was to determine the eff ect supplemental lysine (Lys), methionine (Met) or both added diet dairy cows in form rumen-protected (RP) tablets on changes milk fatty acids (FA) profi le.The trial carried out four lactating Holstein Latin square design and divided into 4 periods 14 d (10-d preliminary period a 4-d experimental period).The treatments were as follows: C -control without amino (AA) supplementation, L -supplement RP Lys, M Met ML Lys.Cows fed based maize...

The objective of the experiments was to compare types maize hybrids harvested at similar stage maturity, between one and two thirds milk line grain. study involved 9 with different parameters that were grown during a period three subsequent years in locations level precipitation. Differences terms content dry matter timing harvests small (323 ± 22 g/kg), showing no statistical significance (P = 0.34). Comparing early maturity medium < 0.05), former showed lower starch (299 g/kg (DM)), latter...