The aim of this study was to evaluate the effects of substituting soybean meal for urea on milk protein fractions (casein, whey protein and non-protein nitrogen) of dairy cows in three dietary levels. Nine mid-lactation Holstein cows were used in a 3× 3 Latin square arrangement, composed of 3 treatments, 3 periods of 21 days each, and 3 squares. The treatments consisted of three different diets...

The proteins encoded by the UL13 genes of herpes simplex virus types 1 (HSV-1) and 2 (HSV-2) have been predicted to be protein kinases. To identify the UL13 gene product, we have raised a rabbit polyclonal antiserum against a His.Tag-HSV-1 UL13 fusion protein. The antibody specifically reacted with the 60-kDa UL13 fusion protein expressed in Escherichia coli and also recognized 56- to 57-kDa la...

casein possesses important physiological and biological properties with regard to promotion of health, as well as prevention of diseases. anticarcinogenic activities, reduction in the risk factors of cardiovascular disease and anticariogenic features have been associated with casein. in addition, casein is known as a source of bioactive peptides. casein-derived peptides have been found to have ...

Several groups of investigators have shown that the induction time for experimental murine amyloidosis may be accelerated by passive transfer ofviable spleen cells or subcellular fractions of spleen cells from casein-treated donors to isogeneicrecipients (Werdelin and Ranl0v, 1966; Hultgren, Druet, and Janigan, 1967; Dreher and Letterer, 1970). On rare occasions the recipient mice appear to hav...

The aim of this study was to produce a colloidally stable whey protein concentrate enriched in β-casein. Microfiltration (MF) skim milk completed at ∼7 °C (pore size 0.1 μm) followed by ultrafiltration the MF permeate ∼9 β-casein-whey fraction (BWPC). casein:whey ratio BWPC system ∼25:75. Skim then added retentate level supplying 0, 0.1, 0.3 and 0.5% (w/w) total protein, evaporation spray dryin...

More than 80% of the total milk protein contains caseins that are to forms α-s1, α-s2, β-casein and kappa casein. Kappa casein is smaller than other milk proteins but due to have a role in size and stability of micelles. The present study describes polymorphism of kappa casein gene. This is the first study of kappa casein gene polymorphism in Najdi cattle of Iran. We used the polymerase chain r...