Results 31 to 40 of about 621,021 (292)

Genetic Diversity of the Beta-Casein Gene in Brown Swiss and Creole Cattle From the Peruvian Highlands. [PDF]

open access: yesAnim Genet
ABSTRACT Cattle's milk and derivatives are essential for human nutrition. However, up to 90% of people experience gastrointestinal discomfort after consumption. Milk digestibility depends on its protein composition. Casein, about 80% of milk proteins, includes beta‐casein (CSN2) with two variants: A1 and A2. The A1 variant is linked to gastrointestinal
Remigio Lorenzo LR   +7 more
europepmc   +2 more sources

Characteristics of the genetic structure at the beta- and kappa-casein locus in the studied dairy breeds of cattle [PDF]

open access: yesE3S Web of Conferences
In total, the research involved 148 heifers and cows of two breeds: Simmental and Ayrshire. Whole blood samples were obtained from three regions: Tambov (Simmental), Tula and Vladimir (Ayrshire) regions. Two breeds were analyzed for two milk protein loci:
Marzanov N.S.   +4 more
doaj   +1 more source

Prediction of protein composition of individual cow milk using mid-infrared spectroscopy

open access: yesItalian Journal of Animal Science, 2010
This study investigated the application of mid-infrared spectroscopy for the prediction of protein composition in individual milk samples (n=1,336) of Simmental cows.
Paolo Carnier   +4 more
doaj   +1 more source

Beta-Casein Gene Polymorphism in Serbian Holstein-Friesian Cows and Its Relationship with Milk Production Traits

open access: yesActa Veterinaria, 2020
The most common types of beta-casein in cow’s milk are A1 and A2, which differ in one amino acid. During the gastrointestinal proteolysis of A1 beta-casein in humans this difference results in the release of beta-casomorphin-7, an opioid which may lead ...
Marko Ristanic   +6 more
doaj   +1 more source

Association of genotypes of cows of the Kholmogory breed by beta-casein with milk productivity

open access: yesАграрная наука Евро-Северо-Востока, 2022
The aim of the study is to identify the frequency of occurrence of various allelic variants and genotypes of beta-casein in cows of the Kholmogory breed and their relationship with dairy productivity. The tasks of the research are genotyping of cattle of
E. V. Parygina   +6 more
doaj   +1 more source

QUALITATIVE AND QUANTITATIVE EVALUATION OF CASEIN FRACTIONS FROM EGYPTIAN BUFFALOE'S AND FRIESIAN COW'S BY ELECTROPHORETIC TECHNIQUE [PDF]

open access: yesAssiut Veterinary Medical Journal, 1983
The electrophoretic pattern of casein complex of milk from Egyptian buffaloe's and Friesian cow's were determined in 36 individual and composite samples using paper ele ctrophoretic technique. Three distinct fractions were obtained named as alpha, beta-,
F.A. ABOUL-KHIER, ABOUL- KHIER
doaj   +1 more source

Microarray analysis applied to the study of milk protein loci in cattle

open access: yesItalian Journal of Animal Science, 2010
Milk proteins still arise much interest because of the proved effects of the most common milk genetic polymorphisms on quantitative and qualitative milk production, as well as on milk technological properties. The role of αs1-casein (CSN1S1), β
G. Pagnacco   +4 more
doaj   +1 more source

Ethyl-substituted .beta.-casein. Study of differences between esterified and reductively alkylated .beta.-casein derivatives

open access: yesJournal of Agricultural and Food Chemistry, 1990
Etude de l'influence du degre d'esterification ou d'alkylation de la β-caseine sur les proprietes physicochimiques et fonctionnelles, en particulier sur la solubilite et l'activite emulsifiante des derives ...
Chobert, J.M.   +5 more
openaire   +4 more sources

The Primary Structure of the Ovine beta-Caseins [PDF]

open access: yesEuropean Journal of Biochemistry, 1979
Ovine whole casein contains 2 multiphosphorylated β‐casein components designated as β1 and β2‐caseins. The complete sequence of β1‐casein and the partial sequence of β2‐casein have been determined from the intact proteins and from the peptides isolated from cyanogen bromide and tryptic digests.
B C, Richardson, J C, Mercier
openaire   +2 more sources

Analysis of the population structure of Uruguayan Creole cattle as inferred from milk major gene polymorphisms

open access: yesGenetics and Molecular Biology, 2006
The ancestors of Uruguayan Creole cattle were introduced by the Spanish conquerors in the XVII century, following which the population grew extensively and became semi-feral before the introduction of selected breeds.
Gonzalo Rincón   +2 more
doaj   +1 more source

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