Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: whey protein content

Sortuj według:

Ogranicz wyniki do:

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Effect of cow's breed and feeding season on the content of bioactive whey protein of milk produced according to principles of the biodynamic farming

100%

Kuczynska B. A., Puppel K. S., Metera E., Sakowski T., Kapusta A., Budzinski A., Grodzki H.

Annals of Warsaw University of Life Sciences - SGGW. Animal Science

2013

tom 52

The aim of this study was to determine genetic effect of cow breed and feeding season on content of bioactive whey protein of cow's milk. In the selected biodynamic dairy farm, cows of two different breeds, i.e. Brown Swiss (BS) and Holstein-Friesian black and white (HF) were kept under the same environment conditions. The samples of milk were collected twice (in summer and winter) from 30 cows (in the same for number from BS and HF). Content of following whey protein: P-lactoglobuline (P-LG), a-lactoalbumine (a-LA), lactoferrin (Lf), lacto-peroxidase (Lp), lisozyme (Lz) and bovine serum albumine (BSA) were determined used RP-HPLC technique. The studies showed a significant effect of breed and feeding season on the content of whey proteins in milk. The average content of whey proteins in milk of cows ranged from 0.73% for the HF breed in winter to 0.84% for the BS breed in summer. Important differences weren't stated in the content of lactoferrin and lactopero-xidase in the milk, and for her the content fluctuated from 0.201 to 0.259 g/l and from 0.111 to 0.154 g/l appropriately at examined breeds. There were no statistically significant differences in the level of a-lactoalbumine in the milk of cows. Its content was ranged from 1.663 to 1.994 g/l. Statistically important differences were shown in conducted experience for the breeds and the feeding season (P < 0.01) for the content of P-lacto-globuline from BS cows in the period of summer feeding was 5.38 g/l, however reduced to the level herself by the winter 4.62 g/l. The similar trend was shown in the milk of HF cows in the summer season the concentration of this white was 4.60 g/l, and in the winter season underwent lowering up to 4.41 g/l. The experiment demonstrated statistically significant differences for the breed and feeding season for the content of P-lactoglobuline in cow's milk.

Ograniczanie wyników

1 Annals of Warsaw University of Life Sciences - SGGW. Animal Science

1 Budzinski A.

1 Grodzki H.

1 Kapusta A.

1 Kuczynska B. A.

1 Metera E.

1 Puppel K. S.

1 Sakowski T.

1 2013

Wyniki wyszukiwania

Effect of cow's breed and feeding season on the content of bioactive whey protein of milk produced according to principles of the biodynamic farming