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Effect of dried pumpkin (Cucurbita maxima D.) supplementation on growth performance, serum biochemistry and parameters antioxidant status of rats. The aim of the studies was to determine the effect of dried pumpkin, used in the diets for rats on parameters of growth, nutrient metabolism and antioxidant status of the animals. The experiment was carried out for 7 weeks with 30 growing male Wistar rats...
The effect of feeding ration, enriched in synthetic and natural ß-carotene on the selectedindicators of health condition of the cows and on reproduction parameters. The studies were conducted on 40 Simmental cows, classified into 4 groups, 10 animals in each group. The experiment was performed since the 4th week before calving until 12 week of lactation. In group I (control), standard nutrition, based...
This paper describes research conducted at the Department of Animal Nutrition and Biotechnology. The aim of the study was to evaluate the effect of feed additives on metabolic activity and immunity in model animals and livestock. The results of a study on rats indicate that high doses of vitamin C as a dietary supplement (more than 0.3% of the diet) had prooxidative effects. A megadose (0.6%) of dietary...
Two experiments were conducted using rats as laboratory animals. The first experiment evaluated the nutritional and dietetic value of beef from cattle fed on pasture forage or maize silage with concentrate. As a reference for the beef, rats were given fish meat. The meats were components of semi-synthetic mixtures. The effect of the meat in the rat diets on metabolic parameters, antioxida- tive status,...
Effect of ensiling pumpkin Cucurbita maxima with the addition of inoculant or without it on chemical composition and quality of silages. The aim of the studies was to determine the effect of ensiling the pumpkin on chemical composition and quality of silages. The silages were produced from pumpkin of Justynka variety. Before ensiling, the disintegrated pumpkin fruits were mixed with the dried beet...
In comparison with concentrate-fed animals, grass-fed cattle provides meat with a higher level of desired polyunsaturated n-3 fatty acids and compounds with antioxidative effects, e.g., α-tocopherol and β-carotene. This should be reflected in a positive influence on fat metabolism and antioxidative status of the consumer’s organism. There are no studies, however, where the effect of beef obtained...
The objective of this study was to evaluate the quality and nutritive value of meat of bulls receiving wheat or maize DDGS (distillers dried grains with solubles) as a source of protein in a feed ration. The Hereford bulls were fed maize silage, hay and concentrates. The factor differentiating the feeding of experimental groups was the composition of concentrates. All concentrates contained cereal...
Celem badań było stwierdzenie czy zastąpienie DDGS (dried distillers grain with solubles) z pszenicy 10% suchej masy dawki podstawowej pasz objętościowych wpłynie korzystnie na wydajność i skład chemiczny mleka krów w 1. fazie laktacji. Doświadczenie przeprowadzono na 50 krowach rasy polskiej holsztyńsko-fryzyjskiej o średniej wydajności w laktacji poprzedzającej doświadczenie 8200 kg mleka. Krowy...
The aim of the study was to examine whether extracts from herbal preparation Herbatan and of Echinacea purpurea, being employed as feed additives for dairy cows, and being added directly to milk, affected its functional value. The studies were conducted on Wistar rats, at random classified in 6 groups, 10 animals in each group. The rats from group 1 received milk from the cows which received addition...
Materiał badawczy stanowiły próbki wątroby pobrane od 25 żubrów, wyeliminowanych w ramach corocznych odstrzałów selekcyjno-redukcyjnych przeprowadzonych w Puszczy Białowieskiej w latach 2005-2007. Oznaczono zawartość makroelementów i wybranych mikroelementów w wątrobach żubrów w różnym wieku, które porównano z wartościami referencyjnymi dla bydła oraz z wynikami wcześniejszych badań prowadzonych w...
The effect of beef from different fattening systems and of meat of marine fi shes, as being employed and the sole protein and fat source in rats' diets on the selected parameters of their growth and health state was examined. The rats of the experimental groups received meat-free diet (group I - control); groups II-IV - diets with 20% of meat: in group II - meat of marine fishes, in group III - beef...
Doświadczenie przeprowadzono na krowach rasy polski HF odmiany czarno-białej, w pełnej laktacji (2 x 25 sztuk). Wszystkie krowy żywiono mieszanką pełnoporcjową o wartości pokarmowej 0,87 JPM, 55g BTJ(N) i 69 g BTJ(E) w kg s.m. Pasze treściwe dodawano w ilości 1 kg mieszanki na 1,8–2,0 kg mleka powyżej wydajności 14 kg dziennie. Celem doświadczenia było zbadanie możliwości zastąpienia poekstrakcyjnej...
Oznaczono skład chemiczny krajowego suszonego wywaru z pszenicy (WDDGS) uzyskanego przy produkcji bioetanolu z ziarna pszenicy w jednej z polskich firm handlowych. Oceniany WDDGS zawierał trzykrotnie więcej białka ogólnego (33,8%), ale też wielokrotnie więcej włókna surowego (14,22%) w porównaniu z ziarnem pszenicy. Zawartość lizyny, metioniny, treoniny i fenyloalaniny w białku WDDGS była podobna...
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