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The purpose of this study was to evaluatethe effect of the kind of light programme on slaughter and meat yield, as well as on physicochemical and sensory traits of breast and leg muscles in Ross 308 and Hybro G commercial hybrids of broiler chickens. The results of study indicated that the intermittent light programme 4L:2D or 3L:1D used in growing broiler chickens significantly affected the following traits in the examined strains of broilers: increased slaughter yield by circa 2.0%; higher yield of breast muscles by about 1.29%; of leg muscles by about 1.44% and lower amount of peritoneal fat tissue in the carcase by about 1.39%. The applied light system also improved the physicochemical characteristics of meat, i.e. pH15, pH24 and water holding capacity and decreased the intramuscular fat content. The kind of light programme affected the quality traits of carcase and meat both in Ross 308 and Hybro G strains of broiler chicken.
The paper focuses on the analysis of the scale of the agricultural output in counties of the Małopolska Province. It also considers the contribution of individual groups of the farm area in this production. The data were collected from Agricultural Census 2003. The Lorenz coefficient and the Pearson correlation coefficient were used as a statistical research methods.
Pikeperch culture is a new direction in European aquaculture. There is scant knowledge of pikeperch physiology, especially regarding hematological and biochemical parameters in the blood. This study examines selected hematological parameters in the blood and the biochemical parameters in the plasma of pikeperch from intensive culture. To determine the hematological parameters, blood was drawn from 20 healthy fish, weighing 40-50 g. The red blood cell count (RBC), hematocrit (Ht), hemoglobin (Hb), various leukocyte counts, the total leukocyte level and MCV, MHC and MCHC counts were examined. The AST, ALT, ALP, plasma bilirubin, cholesterol, glucose, urea and total protein level were determined in the blood plasma. The analyses of the results suggest that pikeperch have similar hematological and biochemical parameters to rainbow trout. The results of this preliminary study indicate that fish from this new intensive culture were in good condition without any symptoms of diseases.
The paper presents the state of agriculture in the Małopolska Province in 2000-2004 on the basis of statistical data concerning population, agrarian structure, sown area, yields, livestock population, agricultural output and the factors of its intensification.
The results of survey studies conducted on family farms in the Warmia and Mazury Region were presented in the work. The analysis comprises assessment of economic and productive results on leading farms with large commodity production.
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