Abstract:The test was focussed on the influence of sex on the production traits of the (LW×L) × OLW combination of hybrids. In the system of ad-libitum feeding, 72 pigs were divided into two identical groups of gilts and barrows and the fattening performance, i.e. the growth intensity, daily feed intake and the quantitative aspect of the carcass value were monitored. On the basis of the profit function, it was found out that in the ad-libitum feeding with the separate fattening of barrows and gilts with respect to the given genotype, it is possible to achieve with the same slaughter weight the difference in the profit per 1 fattened pig 111.06 CZK, i.e. 5.86%.Key words: pig, sex, production traits, testing, economics, profit functions Abstrakt: V testu byl sledován vliv pohlaví na produkèní uitkovost hybridní kombinace prasat (BU×L) × OLW. V systému ad-libitního krmení byla u 72 kusù prasat, rozdìlených do dvou stejných skupin prasnièek a vepøíkù, sledována výkrmnost, tedy rùstová intenzita, denní pøíjem krmiva a kvantitativní stránka jateèné hodnoty. Na podkladì ziskové funkce bylo zjitìno, e v systému ad-libitního krmení pøi oddìleném výkrmu vepøíkù a prasnièek, lze s ohledem na daný genotyp dosáh-nout pøi stejné porákové hmotnosti rozdílu zisku na 1 vykrmené prase 111,06 Kè, resp. rentability 5,86 %.
Abstract:The paper deals with the institutional problems in the pig meat sector in the Czech Republic. The information was obtained in the frame of Project PHARE-ACE P97-8098-R "Institutional Economics in the Agri-Food Business: How can Structural Policy Help to Integrate EU?" The research was performed in year 2000 by means of a questionnaire method and a method of interviews with managers of individual entities in the food chain of pig meat sector. Problems of the execution of property rights in supplier-customer relations in the Czech pig meat sector are the following (institutional view): poor enforceability of property rights, sale for cash, refraining from long-term contracts, decrease of trust between business partners and trust in legal institutions, increase of transaction costs, lack of business ethics etc.
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