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Thirteen female nutrias were fed the diet, based on farm produced crops, supplemented with the organic form of selenium (0.06 μg Se/1 g DM of the diet) for 60 days, and another eleven animals received not enriched diet. 8-months-old animals were slaughtered and dressed. Carcass and edible viscera characteristics were determined. The dressing percentage was higher in the experimental group, with the strong effect for carcass yield (P=0.06). The weight of liver was significantly lower in the supplemented animals (P=0.008). Similar tendency regarding the weight of kidneys was recorded (P=0.05). Carcass yield and edible viscera weights were correlated significantly. The dietary addition of selenized yeast influenced the carcass yield and the weights of the liver and kidneys of nutria females from an extensive feeding system.
A survey of Deoxynivalenol and Zearalenone content in commercial dry foods for growing dogs. The Polish market of commercial dry dog food for growing dogs of small breeds was surveyed for the presence of DON and ZEN with its metabolites α- and β-zearalenol (α-, β-ZOL). LC/ /MS method was applied for 6 randomly selected foods. The low levels of toxins found, gives overall picture of the safe segment of the market. The content of masked α-zearalenol, however, from the perspective of long term consumption of small amounts may pose a health risk for the reproductive system of bitches.
Denning and sett construction made by the red fox and Eurasian badger may cause changes in forest vegetation. These changes relate to both the cover and the species composition of forest-floor vegetation, with some plant species being eliminated and some promoted in the vicinity of dens and setts. In general, there is a reduction in the number and coverage of acidophilous, oligotrophic and skiophilous species, and a promotion of basophilous, eutrophic and heliophilous ones. There is also a decline in the abundance and cover of geophytes, chamephytes and phanerophytes, and an increase in the role of bryophytes (as well as therophytes and hemicryptophytes in the case of badger setts). Where dens are concerned, species characteristic for the Vaccinio-Piceetea Br.-Bl. 1939 and QuercoFagetea Br.-Bl. et Vlieg. 1937 classes are less significant, and those typical for Artemisietea vulgaris Lohm., Prsg et R.Tx1971950moresignificant. On badger setts, species characteristic of the class Epilobietea angustifoliae R.Tx. et Prsg 1950 are also more significant. The disturbanes brought about by the activity of badgers are more evident than those induced by foxes, but they do not differ in terms of their ecological nature.
The objective of this study was to determine the effects of the inclusion of the vegetal and animal fat to the diet on the apparent digestibility in chinchillas. 18 young chinchillas were assigned to three groups and fed control diet or with the addition of either linseed (VF) or lard (AF). The apparent digestibility coefficient (ADC) was calculated for dry matter (DM), organic matter (OM), crude protein (CP), crude fibre (CF), nitrogen free extract (NFE) and ether extract (EE). The results showed that there was no significant effects of fat addition on most of the studied constituents except for increased digestibility of EE.
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