National Repository of Grey Literature 53 records found  beginprevious51 - 53  jump to record: Search took 0.00 seconds. 
Using analysis and fertility of warmblood stallions
STRAPKOVÁ, Jaroslava
The goal of this work was to work up the survey about usage and fertility of stallions using in Czech warmblood breeding. All data originate from breeding evidence of Czech warmblood Breeders Association, Association of Horse Breeder´s Unions of the Czech Republic and Czech Equestrian Federation (years 2002 {--} 2008). It has been evaluated frequency of stallion using in each period, the numbers of fertilized mares and the numbers of foals borning after each stallions. Frequency of using the stallions was compared with achieved level their sports performance. The results of the numbers of borning foals in each years were in interval 917 {--} 1360 and gradually falls. In average 6 foals were born to one stallion. Natality was in interval 32,3 % - 74,4 %, 11 fertilized mares to one stallion in average. From 13 to 21 % stallions used in breeding have no offspring. It was made out that the using of stallions with hight performance grow up from 11,4% to 21,1 % by sports performance T and from 3 % to 7,1 % by sports performance TT. Detected rates from the analysis of stallions usage in breeding Leeds to conclusion, that the number of present stallions should be lower, but the frequency of usage should be higher.
Natural and artificial variations in the natality in Slovakia
Střeštík, Jaroslav ; Mikulecký, M. ; Žirko, M.
Daily numbers of births in Slovakia 1996-2001 were taken into calculations. In the annual variation a trough occurs from October to December, and short sharp minima during holidays. In the spectrum only annual and 7-day period supplemented by their higher harmonics can be found. No trace of lunar variation has been bound.
Rodina v ČR - nové reprodukční schéma
Poděbradská, Klára ; Stočková, Olga (advisor) ; Běláčková, Vendula (referee)
Tato práce se snaží zachytit směry vývoje rodinné politiky od populačního zaměření k její nové podobě. Zároveň se zabývá popisem změn v rodinném chování, ke kterým dochází v České republice po roce 1989 a naznačuje jaké postavení zaujímá manželství a rodičovství v hodnotách mladých lidí. Z pohledu demografie ukazuje, jakým směrem se ubírá populační vývoj. Dále vysvětluje příčiny, které stojí za prudkým a hlubokým poklesem úrovně plodnosti. Hlavní část práce je věnována analýze účinnosti nástrojů rodinné politiky na porodnost. Rozboru jsou podrobena opatření přijímaná v minulosti na podporu porodnosti v České republice. Pomocí mezinárodních studií odhaluje, jaké nástroje mají na porodnost největší vliv.

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