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Characteristics of alpaca wool from farmed animals located on different continents. Interest in breeding alpacas around the world is related to the acquisition of valuable fibre from these animals.The characteristics of alpaca wool are influenced by both genetic and environmental factors.The aim of the study was to compare chosen traits of Huacayaalpaca wool from three farms located in Australia,...
The changes in the milk composition and its lipid fraction during the rearing of lambs in non-milked sheep. Studies regarding the effect of lactation stage on milk content and lipid fraction composition are mostly conducted on milked animals. The aim of this study was to analyze the changes in the basic milk composition and content of fatty acids in the fat fraction during the rearing of lambs in...
Assessment of slaughter value of sheep on the basis of linear measurements made on digital carcass images. The aim of this study was to develop a method of assessing slaughter value of sheep using digital carcass images.Research material consisted of 38 ovine carcasses. Carcasses were classified in the EUROP grading system in terms of muscle and fat and photographed from three sides and then computer...
The aim of the study was to evaluate the effects of highly selenized yeast (SeY) or selenate (SeVI) on fatty acids (FA) profiles in musculus longissimus dorsi (MLD) and musculus biceps femoris (MBF) of male lambs. Lambs, divided into 3 groups of 6 animals each, were individually penned and fed for 35 days control diet containing 2% rapeseed oil (RO), 1% fish oil (FO) and 0.1% carnosic acid (CA) or...
Celem badań było określenie wpływu liczby komórek somatycznych (LKS) na składniki frakcji białkowej i tłuszczowej mleka owiec rasy wrzosówka. Badania przeprowadzono na 30 maciorkach w wieku 3-4 lat. W próbach mleka, pobieranego w 4. tygodniu laktacji, określono: podstawowy skład, LKS, zawartość białek serwatkowych i profil kwasów tłuszczowych. Po określeniu LKS próby podzielono na cztery klasy: I...
Celem badań było określenie związku polimorfizmu β-laktoglobuliny (β-LG) ze składem mleka i profilem kwasów tłuszczowych. Badania prowadzono na 30 maciorkach rasy wrzosówka w wieku 3-4 lat, od których w 4. tygodniu laktacji pobrano próby mleka. Szczegółowa analiza białek mleka pozwoliła określić warianty β-LG. Stwierdzono obecność trzech genotypów β-LG (AA, AB, BB). Frekwencja allelu B była dwukrotnie...
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