An experiment to reveal functional response and heifers' performance to sward characteristics and forage chemical composition was conducted for 5 years in rotational (RSS) and continuous (CSS) stocking systems on native species-rich upland grassland. We measured sward characteristics, forage chemical composition, heifers' grazing behavior and live-weight gains from July to September. Mean sward surface height was lower on CSS than on RSS; grass and forb density, and white clover stolon length, were similar. Herbage on CSS had higher crude protein content and lower crude fiber content than on RSS. No difference existed in time budgets of grazing, ruminating and resting between stocking systems and season, while grazing rates were higher on CSS. Stocking rate was 1671 and 1332 kg per ha on CSS and RSS, individual daily live-weight gain 683 and 652 g on CSS and RSS. Gain per ha was 20 kg higher on CSS. Results suggested stocking systems on native species-rich grassland had no effect on activity time budgets or animal performance. Both RSS and CSS allow similar outputs for stocking rates in terms of individual daily live-weight gain. Key parameters determining heifers' behavior and performance were sward height, grass and forb density in the sward, and content of crude fiber and protein in forage.

• MeSH
• býložravci fyziologie   MeSH
• hmotnostní přírůstek MeSH
• krmivo pro zvířata * MeSH
• lipnicovité * MeSH
• roční období MeSH
• skot růst a vývoj   MeSH
• zvířata MeSH
• Check Tag
• skot růst a vývoj   MeSH
• ženské pohlaví MeSH
• zvířata MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH

Research and development project uses Bayesian Expert Information Systems PATS (Patient Analysis and Tracking System) of the Merged Cardiac Registry (MCR). It was established and operates based on auhorisation of minister of Health L. Rubaš SM 42045 withthe goal to support research activities and the goals of the National Cardiovascular Programme.

Vývojový a výzk. projekt využívá Bayesovských exp. systémů PATSTM Sloučeného Kardiovask. Registru /MCR/, který byl zřízen a je provozován na základě pověření ministra L.Rubáše Čj.SM 42045, pro výzkumné aktivity za účelem naplňování cílů kard. programu.

• MeSH
• kardiovaskulární abnormality chirurgie   MeSH
• kardiovaskulární chirurgické výkony MeSH
• registrace MeSH
• srdeční blokáda chirurgie   MeSH

• Konspekt
• Patologie. Klinická medicína
• NLK Obory
• kardiologie
• NLK Publikační typ
• závěrečné zprávy o řešení grantu IGA MZ ČR