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Milk protein polymorphism in Sudanese dairy cattle breeds [electronic resource].

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Hassan, Y

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Language: English Summary language: Arabic Description: P. 136-144Other title:

التعدد الجيني لبروتين اللبن في بعض سلالات ابقار اللبن السودانية [Added title page title]

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Assiut veterinary medical journal, 2010 v. 56 (124) [electronic resource].

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In: Assiut Veterinary Medical Journal 2010.v.56(124)Summary: The genetic variation at five milk protein loci αs1-casein (CSN181), as2casein (CSN1S2), p-casein (CSN2), K-casein (CSN3) and p-lactoglobulin (LGB) was investigated in 228 animals belonging to four dairy populations well adapted to prevailing climatic conditions of Sudan.. Bas indicus (Butana, Kenana and Baggara) and Bas indicus (Kenana or Butana) X Friesian (KBF) were studied using isoelectric focusing technique for loci characterization. All loci were polymorphic and two new variants were detected at CSNlS1 and CSNlS2. The CSNlSl*1 variant was shown by the Butana and Baggara cattle, while CSN1S2*X variant was observed in all populations under the study. Milk protein loci, being positively selected loci, can also provide information about the occurrence of germplasm particularly useful for breeding strategies and production improvements.

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The genetic variation at five milk protein loci αs1-casein (CSN181), as2casein (CSN1S2), p-casein (CSN2), K-casein (CSN3) and p-lactoglobulin (LGB) was investigated in 228 animals belonging to four dairy populations well adapted to prevailing climatic conditions of Sudan.. Bas indicus (Butana, Kenana and Baggara) and Bas indicus (Kenana or Butana) X Friesian (KBF) were studied using isoelectric focusing technique for loci characterization. All loci were polymorphic and two new variants were detected at CSNlS1 and CSNlS2. The CSNlSl*1 variant was shown by the Butana and Baggara cattle, while CSN1S2*X variant was observed in all populations under the study. Milk protein loci, being positively selected loci, can also provide information about the occurrence of germplasm particularly useful for breeding strategies and production improvements.

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