Pleiotrope Wirkungen von β‐Lactoglobulin‐ und Casein‐Genotypen auf Milchinhaltsstoffe des bayerischen Fleckviehs und Braunviehs1

Abstract

Zusammenfassung An zwei umfangreichen Stichproben der bayerischen Fleckvieh‐ und Braunviehpopulation mit jeweils etwa 2000 Tieren wurden bei den Merkmalen Milchserumeiweißgehalt, Caseingehalt, Gesamteiweißgehalt und Fettgehalt pleiotrope Wirkungen von β‐Lactoglobulin‐ und Casein‐Genotypen geschätzt. Alle Genotypen zeigten bei allen Eigenschaften und bei beiden Rassen Einflüsse, wobei zwischen den Wirkungen der Fleckvieh‐ und Braunviehpopulation eine gute Übereinstimmung deutlich wird. Die deutlichsten Effekte zeigten sich bei den Teilmerkmalen Milchserumeiweißgehalt und Caseingehalt. Ein beträchtlicher Teil der Genotypeneffekte verhält sich antagonistisch, so daß Kompensation bei den Hauptmerkmalen vorliegt. Summary Pleiotropy of β‐lactoglobulin und casein genotypes on milk composition in Bavarian Fleckvieh and Braunvieh The effects of β‐lactoglobulin and casein alleles on milk content of whey protein, casein, total protein and fat were estimated on some 2000 cows each of Bavarian Fleckvieh and Braunvieh. The effects of the alleles appeared to be similar in the two populations. The effects were most prominent on whey protein and casein content. Quite a number of alleles affect the contents of the different proteins antagonistically. Therefore the effects on the components of the total milk protein compensate each other. Résumé Effets pléiotropiques des génotypes β‐lactoglobuline et caséine dans la composition du lait du Fleckvieh bavarois et Braunvieh Les effets des alléles lactoglobuline et caséine de la teneur en lait de protéine du petit‐lait, caséine, protéine totale et teneur en graisse ont été estimés à environ 2000 vaches respectives des races Fleckvieh bavorois et Braunvieh. Les effets des alléles semblaient étre similaires dans les deux populations. Les effets les plus proéminents se montraient pour protéine du petit‐lait et teneur en caséine. Un antagonisme fut observé pour un nombre considérable d'effets génotypiques, de sorte qu'il existe compensation pour les caractéristiques principales. Resumén Efectos pleiotropicos de β‐Lactoglobulina y Caseína genotipos sobre los componentes de la leche en ganado manchado y pardo bavarico Los efectos de los alelos de β‐Lactoglobulina y Caseína sobre los componentes de la leche, como proteín séríca de la leche, caseína, proteîna y grasa total fueron estimados en las mismas 2000 vacas, en cada población de ganado manchado y pardo bavarico. Todos genotipos mostraron para todas las propiedades y en ambas razas influencias, donde una buena concordancia pudo ser obtenida entre los efectos de ambas poblaciones. Los efectos más claros se mostraron en el contenido de proteína séríca de la leche y contenido de caseína. Una considerable parte de los efectos genotípicos se portaron antágonicamente, pero mostraron compensación en las características principales.

Effects of genetic variants in milk protein on yield and composition of milk from Holstein-Friesian and Simmentaler cows

“…The frequencies of κ-Cn A and B were similar to that of Graml et al (1984) and Ortner et al (1995), while the frequency of κ-Cn A was higher than that of Putz et al (1991) and lower than that of Erhardt (1993) and Falaki et al (1997). The frequencies of β-Lg A and B were equal, in agreement with the findings of Graml et al (1984) and Putz et al (1991). The frequency of β-Lg B was higher than that reported by Erhardt (1993) and Falaki et al (1997) and lower than the result of Ortner et al (1995).…”

“…The frequencies of β-Lg A and B were nearly similar to the findings of Panicke et al (1996) and McLean et al (1984), but were lower than that reported by Erhardt (1993) and higher than the results of Bobe et al (1999). For Simmentaler cows the frequency of α S1 -Cn B was higher and that of α S1 -Cn C lower than the results of Graml et al (1984), Putz et al (1991), Erhardt (1993), Ortner et al (1995) and Falaki et al (1997). The frequencies of β-Cn A 1 and B were higher and that of allele A 2 lower than the frequencies reported by other researchers (Putz et al, 1991;Erhardt, 1993;Ortner et al, 1995).…”

“…The frequencies of β-Cn A 1 and B were higher and that of allele A 2 lower than the frequencies reported by other researchers (Putz et al, 1991;Erhardt, 1993;Ortner et al, 1995). The β-Cn C was less frequent than the values reported by Graml et al (1984) and more frequent than that of Putz et al (1991), Erhardt (1993), Ortner et al (1995) and Falaki et al (1997). The frequencies of κ-Cn A and B were similar to that of Graml et al (1984) and Ortner et al (1995), while the frequency of κ-Cn A was higher than that of Putz et al (1991) and lower than that of Erhardt (1993) and Falaki et al (1997).…”

“…The β-Cn C was less frequent than the values reported by Graml et al (1984) and more frequent than that of Putz et al (1991), Erhardt (1993), Ortner et al (1995) and Falaki et al (1997). The frequencies of κ-Cn A and B were similar to that of Graml et al (1984) and Ortner et al (1995), while the frequency of κ-Cn A was higher than that of Putz et al (1991) and lower than that of Erhardt (1993) and Falaki et al (1997). The frequencies of β-Lg A and B were equal, in agreement with the findings of Graml et al (1984) and Putz et al (1991).…”

Relationship Between Kappa Casein Genes (CSN3) and Industrial Yield in Holstein Cows in Nariño-Colombia

“…These results do not agree with those obtained by Haenlein [58] and Graml [59] in relation to the stained brown bavárico and Guernsey, who claim that cows carrying the AB genotype reach a higher milk production compared to those with the homozygous genotype AA. On the contrary, [6,60,61] they reported the highly significant effect of genotype BB on this feature in the Holstein breed.…”