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1

Carcass value of bull - crosses of Czech Pied cattle with beef bovine breeds

100%
Voriskova J., Frelich J., Marsalek M., Zednikova J.
Zeszyty Naukowe. Przegląd Hodowlany
|
2000
|
tom 51
2

Uzytkowosc miesna buhajkow mieszancow bydla czeskiego pstrego z rasami miesnymi

100%
Frelich J., Voriskova J., Szarek J., Zapletal P.
Roczniki Naukowe Zootechniki
|
1997
|
tom 24
|
nr 3
9-22
3

Stan i perspektywy rozwoju hodowli bydla miesnego w Polsce

100%
Szarek J., Adamczyk K., Frelich J.
Wiadomości Zootechniczne
|
2008
|
tom 46
|
nr 4
23-36
4

Straty powstałe w wyniku uszkodzenia tkanki skórnej bydła mięsnego w czasie opasu

100%
Zapletal P., Weglarz A., Frelich J., Voriskova J.
Zeszyty Naukowe Akademii Rolniczej we Wrocławiu. Konferencje
|
2000
|
tom 24
5

Selected factors affecting reproduction indexes in dairy cows

100%
Jezkova M., Frelich J., Marsalek M.
Animal Science Papers and Reports. Supplement
|
2004
|
tom 22
|
nr 2
6

Seasonality in milk performance and reproduction of dairy cows in low-input farms depending on feeding system

88%
Frelich J., Slachta M., Szarek J., Weglarz A., Zapletal P.
Journal of Animal and Feed Sciences
|
2009
|
tom 18
|
nr 2
7

Wpływ wybranych czynników na użytkowość mleczną i reprodukcję matek buhajów rasy czeskiej pstrej

76%
Frelich J., Voriskova J., Marsalek M., Zednikova J., Kucerova J., Kron V.
Zeszyty Naukowe. Przegląd Hodowlany
|
2003
|
tom 67
8

Aspekty hodowli krow mlecznych w podgorskich rejonach Republiki Czeskiej

76%
Frelich J., Cermak B., Slachta M., Vavrowa L., Zapletal P., Szarek J.
Roczniki Naukowe Zootechniki. Suplement
|
2007
|
nr 23
27-31
9

Zwiazki fitocenologiczne stanowisk pastwiskowych i ich wielofunkcyjnosc w warunkach marginalnych

76%
Cermak B., Klimes F., Kobes M., Lad F., Frelich J., Zapletal P.
Prace i Materiały Zootechniczne
|
2008
|
tom 65
144-145
10

Seasonal variation in fatty acid composition of cow milk in relation to the feeding system*

76%
Frelich J., Slachta M., Hanus O., Spicka J., Samkova E., Weglarz A., Zapletal P.
Animal Science Papers and Reports
|
2012
|
tom 30
|
nr 3
The fatty acid (FA) composition of bulk milk fat was examined on three dairy farms applying the seasonal pasture and on two farms applying the permanently indoor silage feeding. The seasonal variation in the content of major FAs was investigated in relation to the effect of farm in each feeding system separately. Six samples in winter period and four samples in summer period were taken on each farm. In the grazing herds, the seasonal changes were found in FAs forming 90 g/100 g total FAs on average (P<0.05), generally without interactions with farm effect (P>0.05). Only several FAs, forming 14 g/100 g total FAs on average, were influenced by the season effect in the indor herds (P<0.05). The seasonal increase in unsaturated FAs against the saturated FAs and omega-3 against omega-6 polyunsaturated FA indicated that the milk yielded in summer was more beneficial to consumers’ health than that yielded in winter. No significant differences in these indicators of healthy milk were found compared to the milk yielded by herds kept indoors (P>0.05). The milk produced by grazing cows may be positively evaluated by consumers.
11

Association between paternal microsatellite ETH10, heterozygous level of paternal microsatellites and milk production parameters in cattle

76%
Kucerova J., Nemcova E., Stipkova M., Dvorak J., Frelich J., Bouska J., Vrtkova I.
Animal Science Papers and Reports. Supplement
|
2004
|
tom 22
|
nr 2
12

Doskonalenie cech uzytkowosci mlecznej i miesnej czeskiego bydla pstrego przy wykorzystaniu markerow genetycznych

64%
Kucerova J., Frelich J., Voriskova J., Nemcova E., Stipkova M., Vrtkova I., Dvorak J., Zapletal P.
Roczniki Naukowe Zootechniki. Suplement
|
2004
|
nr 19
19-23
13

Pasture cows nutrition in submounteens condition in Sumava region

64%
Cermak B., Frelich J., Slachta M., Vavrova L., Lad F., Zapletal P., Vondraskova B., Weglarz A.
Prace i Materiały Zootechniczne
|
2009
|
tom 67
Quality of chosen herbal species from meadow and grazing herbage were evaluated. Dry matter, crude protein, ash, fat and fibre were analyzed. Herbage sampling was realized on three pastures of cattle with higher altitudes. Samples were compared with meadow herbage. Grass and herbage are the most natural and optimal feedstuff for cattle. Grazing management should notably regulate the pasture composition, i.e. support dominance of soft stoloniserous strains of grasses and decrease occurrence of weed and less value strain of gramineous grasses. The impact of grazing on milk performance and health of dairy cows was surveyed on sub-moun- tain farms. The higher milk, fat and protein yields were found in grazing season in comparison with winter confinement period.
14

Quality of goat pasture in less-favoured areas (LFA) of the Czech Republic and its effect on fatty acid content of goat milk and cheese

52%
Cermak B., Kral V., Frelich J., Bohacova L., Vodraskova B., Spicka J., Samkova E., Posednicek M., Weglarz A., Makulska J., Zapletal P.
Animal Science Papers and Reports
|
2013
|
tom 31
|
nr 4
The aim of the study was to assess the quality of pastures located in less-favoured areas (LFA) of Czech Republic, to evaluate the influence of that quality on the content of fatty acids of milk in grazing goats and in farm natural cheese made of their milk. Samples of forage were collected in 2008 and 2009, on 5 July, 9 August, 6 September and 4 October. Goat milk samples were taken on the same days of both years and additionally on May 31. The highest content of protein and fat of the forage dry matter and, consequently, the highest feeding value of pasture were found in July and October. It was associated with a high content of clovers and herbs in the available herbage. During grazing the content of saturated fatty acids (SFA) of goat milk fat continuously decreased while the trend for the content of monounsaturated fatty acids (MUFA) was opposite. A significant increase in herb of the total crop observed in autumn contributed to a highest content of polyunsaturated fatty acids (PUFA) in fat of goat milk. The fatty acid profile of goat cheese was related to that of the milk. Thus, a high content of PUFA, including CLA, observed in milk of grazing goats guarantees that the cheese made of that milk fulfills the requirements for functional foods.
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