FPUTS seria Agricultura, Alimentaria, Piscaria et Zootechnica, 2017
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Przeglądaj FPUTS seria Agricultura, Alimentaria, Piscaria et Zootechnica, 2017 wg Autor "Biel, Wioletta"
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Pozycja Open Access Analysis of the content of macro- and microelements in the leaves of sea buckthorn (Hippophaë rhamnoides L.)(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2017) Jaroszewska, Anna; Biel, Wioletta; Gibczyńska, Marzena; Department of Agronomy, West Pomeranian University of Technology, Szczecin; Department of Pig Breeding, Animal Nutrition and Food, West Pomeranian University of Technology, Szczecin; Department of Chemistry, Microbiology and Environmental Biotechnology, West Pomeranian University of Technology, SzczecinSea buckthorn is used in the world primarily for its high nutritional value and unique healing properties. It is a plant with a small climate and soil requirements. The study was conducted to determine changes mineral compounds in leaves of sea buckthorn (Hippophae rhamnoides L. ssp. rhamnoides), depending on the substrate type and the passage of time and assessment of the potential for sea buckthorn growth on saline and degraded soil. The determined the amounts of nitrogen, phosphorus, potassium, calcium, magnesium, iron, manganese, zinc, sodium, molybdenum, chromium, lead, and cadmium. Shrubs of sea buckthorn (Hippophae rhamnoides L. ssp. rhamnoides), of which leaves were collected in June 2015, were located in four sites in Szczecin. The soils, on which sea buckthorn bushes grow are alkaline. The different sites of the growing shrubs of sea buckthorn (Hippophae rhamnoides L.) and the applied fertilization resulted in the differentiation of P, K, Ca, and Mg in leaves of the plant, but no change in N content was observed. Leaf samples collected a year earlier contained more N and P and less Ca and Mg. Leaves of sea buckthorn growing on the banks of the Odra river contained over ten times more Na, twice as much Fe, three times as much Mn as leaves of shrubs growing elsewhere. There was no difference in the amount of Mn in the leaves over the years, while those collected a year earlier contained more Fe. No presence of Mo, Pb, Cr and Cd was recorded in the leaves of sea buckthorn (Hippophae rhamnoides L.). Uptake of large amounts of Na, Ca, and Mg by sea buckthorn indicates the possibility of its growing on saline and degraded soils and the passage of time.Pozycja Open Access Nutritional value of granulated adult dog feed(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2017) Łysoń, Ewelina; Biel, Wioletta; Cierniak, Maja; Kavetska, Katarzyna M.; Department of Pig Breeding, Animal Nutrition and Food, West Pomeranian University of Technology, Szczecin; Department of Pig Breeding, Animal Nutrition and Food, West Pomeranian University of Technology, Szczecin; Laboratory of Biology and Ecology of Parasites, West Pomeranian University of Technology, Szczecin; Laboratory of Biology and Ecology of Parasites, West Pomeranian University of Technology, SzczecinOne of the most popular methods of feeding dogs is giving them complete commercial feeds. When a decision is made to feed the dog with a dry food, selection of feed should not be made based on its price but in the first place on its quality. The research material consisted of 9 commercial maintenance feeds for adult dogs. The feeds tested were in granular form. Basic chemical composition in dry matter was determined for each feed (total protein, crude fiber, crude fat, crude ash and nitrogen-free extracts). Obtained results were compared with data provided by the manufacturers on labels of testes feeds. Metabolisable energy was calculated for each feed, based on the calculated chemical composition. All tested feeds satisfied minimal demand for total protein and crude fat. Three of them did not, however, meet minimum standard for adult dog feeds with respect to the level of metabolisable energy. Comparison of data on nutritional value provided by the manufacturers with results of own analyses showed that in several cases the manufacturers over- or underestimated content of particular nutrients. In 6 out of 9 feeds the manufacturers declared significantly higher content of protein. In one case the manufacturer declared significantly lower fat content that the one resulting from performed chemical analyses.