Yield and composition of milk from Jersey cows as dependent on the genetic variants of milk proteins

• Autorzy: Micinski J , Klupczynski J. , Mordas W. , Zablotna R.

Warianty tytułu

PL

Charakterystyka wydajnosci i skladu mleka krow rasy Jersey w zaleznosci of genetycznego ukladu bialek mleka

• Języki publikacji: EN

Abstrakty

EN

The experiment was performed on 121 Jersey cows in the years 2003/2004. The aim of this study was to determine the yields of ECM, milk fat and milk protein as well as milk fat content and milk protein content during four successive 305-day lactations as dependent on the genotypes and polymorphic variants of milk proteins. Depending on their genotype, the cows were divided into the following groups: AA, AB, BB and BC. Four major milk proteins were obtained as a result of separation, i.e. LGB, CSN1S1, CSN2 and CSN3. The yields of ECM, milk fat and milk protein increased during four successive 305-day lactations. Cows with the polymorphic fractions LGB AA and AB, CSN1S1 BC, CSN2 AB and CSN3 AA were characterised by the highest productivity. The highest increase in fat content (0.63%) was recorded between the first and second lactation. The LGB AA genotype contributed to an increase in protein concentration, by 0.14%, 0.12% and 0.19% in the second, third and fourth lactation, respectively. In the case of the other fractions these values were as follows: CSN1S1 BC - 0.13%, 0.07% and 0.11% in the second, third and fourth lactation, respectively, CSN2 AA - 0.09%, 0.20%, 0.08% and 0.04% in the first, second, third and fourth lactation, respectively, and CSN3 BB - 0.11%, 0.16% and 0.10% in the second, third and fourth lactation, respectively.

PL

Badania obejmujące 121 krów rasy jersey przeprowadzono w latach 2003/04. Celem badań było określenie wydajności mleka przeliczonego na zawartość ECM, tłuszczu i białka (T+B) oraz zawartości tłuszczu i białka w kolejnych 4 laktacjach 305 dniowych w zależności od genotypów i polimorficznych wariantów białek badanego mleka. W wyniku rozdziału uzyskano grupy krów o genotypach AA, AB, BB i BC oraz białkach mleka LGB, CSN1S1, CSN2, CSN3. Wykazano wzrost wydajności mleka przeliczonego na zawartość ECM oraz wydajności „T+B” w czterech kolejnych laktacjach 305 dniowych. Najwyższą wydajnością odznaczyły się krowy z polimorficzną frakcją LGB AA i AB, CSN1S1 BC, CSN2 AB i CSN3 AA. Wzrost zawartości tłuszczu odnotowany pomiędzy I a II laktacją był najwyższy i wynosił 0,63%. Genotyp LGB AA przyczynił się do zwiększenia zawartości białka w laktacji II o 0,14%, w laktacji III o 0,12% i w laktacji IV o 0,19%. Następnie: CSN1S1 BC odpowiednio o 0,13%, o 0,07% i o 0,11%; CSN2 AA w laktacji I o 0,09%, w II o 0,20%, w III o 0,08% i w IV 0,04% oraz CSN3 BB odpowiednio o 0,11%, o 0,16% i 0,10%.

Słowa kluczowe

EN

cow; Jersey breed; milk protein; milk composition; milk yield; genetic variation

• Wydawca: -
• Czasopismo: Polish Journal of Food and Nutrition Sciences
• Rocznik: 2007
• Tom: 57
• Numer: 3[A]
• Opis fizyczny: p.95-99,ref.

Twórcy

autor

Micinski J

• University of Warmia and Mazury in Olsztyn, Oczapowskiego 5/150, 10-957 Olsztyn, Poland

autor

Klupczynski J.

autor

Mordas W.

autor

Zablotna R.

Bibliografia

• 1. Aleandri R., Buttazoni L.G., Schneider J.C., Caroli A., Davoli R., The effect of milk protein polymorphisms on milk components and cheese-producing ability. J. Dairy Sci., 1990, 73, 241-255.
• 2. Barłowska J., Litwińczuk Z., Influence of genetic combinations β-lactoglobulin and κ-casein on productiveness and chemical composition of milk of Jersey cows. 2001, in: Proceedings of the international scientific conference. 7-8 June 2001, Poznań, Poland, pp. 119-127.
• 3. Bech A.M., Kristansen K.R., Milk protein polymorphism in Danish dairy cattle and the influence of genetic variants on milk yield. J. Dairy Sci. 1990, 57, 53-62.
• 4. Kamiński S., Bovine kappa-casein (CASK) gene – molecular nature and application in dairy cattle breeding. J. Appl. Genet., 1996, 37, 179-196.
• 5. Klupczyński J., Miciński J., Analysis of the results of a few years research on Jersey cattle herds. Natur. Sc., 2000, 4, 75-84.
• 6. Krzyżewski J., Strzałkowska N., Rynkiewicz Z., A relationship between genetic polymorphism and yield, chemical composition and technological parameters of cow’s milk. Prace Mat. Zoot., 1998, 57, 7-37 (in Polish).
• 7. Litwińczuk A., Barłowska J., Chabuz W., A comparison of the yield of chemical composition and polymorphism of milk proteins of cows of Black-and-White and Jersey breeds. 1996, in: Materials of the Scienctific Conference, 15-16 October 1996, Balice, Poland, pp. 11-20 (in Polish).
• 8. Michalak B.W., Genetic and productive issues linked with bovine milk proteins. Biul. Inf. I.Z. w Krakowie., 1995, 36, 4, 5-18 (in Polish).
• 9. Michalak W., Application of starch gel electrophoresis for simultaneous determination of phenotypes of four major milk proteins. Part 1. Biul. Zakł. Hod. Dośw. Zwierz. PAN, 1969, 15, 75-88 (in Polish).
• 10. Miciński J., Klupczyński J., Correlations between polymorphic variants of milk proteins, and milk yield and chemical composition in Black-and-White and Jersey cows. Pol. J. Food Nutr. Sci., 2006, 15/56, SI 1, 137-145.
• 11. Ojala M., Famula T.R., Medrano J.F., Effects of milk protein genotype on the variation for milk production traits of Holstein and Jersey cows in California. J. Dairy Sci., 1997, 80, 1776-1785.
• 12. Peterson R.F., Kopfler F.C., Detection of new types of β-caseins by polyacrylamide gel electrophoresis at acid pH: a proposed nomenclature. Bioch. Biophys. Res. Communic.,1966, 22, 368.
• 13. Schmidt D.C., Starch gel electrophoresis of kappa-casein. Biochim. Biophys. Acta., 1964, 90, 411–415.
• 14. Skrzypek R., Characteristics of functional traits in Jersey breed cattle. Przegl. Hod., 2001, 10, 7-10 (in Polish).
• 15. Skrzypek R., Conference of the World Office of Jersey Cattle Breeders. Przegl. Hod., 2002, 8, 17-20 (in Polish).
• 16. Sowiński G.,A relationship of genetic variants of β-lactoglobulin, αs1-, β- and κ-caseins with yield, chemical composition and parameters of technological usability of milk of Black-and-White cows. Zesz. Nauk. ART. w Olsztynie, Zoot., 1993, 38, Suppl. B, 2-39 (in Polish).
• 17. Statsoft. Statistica., Data analysis software systems. ver. 6. 2003, [www.statsoft.pl/base.html#anovamanova].
• 18. Walawski K., Sowiński G., Czarnik U., Zabolewicz T., Beta-lactoglobulin and kappa-casein polymorphism in relation to production traits and technological properties of milk in the herd of Polish Black-and-White cows. Genet. Pol., 1994, 35, 93-108.
• 19. Walsh C.D., Guinee T.P., Harington D., Mehra R., Murphy J., Fitzgerald R.J., Cheese-making, compositional and functional characteristics of low-moisture part-skim Mozarella cheese from bovine milks containing k-casein AA, AB or BB genetic variants. J. Dairy Res., 1998, 65, 307-315.