The largest ablation zone is obtained with systems B and C (three antennas) under maximum recommended ablation duration and with system A under short ablation time. The most spherical zone is obtained with system C (three antennas).
Gene frequencies were estimated in a sample of Baladi cattle for milk proteins, blood proteins and blood groups. Gene frequency estimates of Bos taurus, Bos indicus and Sanga breeds were assembled from the literature. The gene frequencies were utilized for estimating the genetic distance between the breeds and breed groups. The Egyptian Baladi cattle appeared to be closer to Bos taurus breeds than to the Sanga. They are far removed from Zebus.
In March, 1948, when I was elected director of economic administration of the British and American zones, Germany's economy was paralyzed. Poverty was extreme. Productive capacity was only 60% of that in 1936 while actual production was only 39%. The economy had reverted to primitive barter with needed goods held in warehouses and little going to the price-frozen markets.
Zusammenfassung Beim Studium der Blutgruppenstruktur von Zebu‐Azaouak‐Rinclern wurden im B‐Blutgruppensystem 33 Blutgruppenfaktorenkombinationen oder Phänogruppen als unteilbare Erbeinheit festgestellt. Nur 10 dieser Phänogruppen sind bisher bei Rindern der europäischen Kulturrassen beschrieben. Das Zebu‐Azaouak‐Rind läßt sich daher serologisch eindeutig von den europäischen Rindern abgrenzen. Wie bei den Rindern der Höhenrassen und vielen anderen Rinderrassen, wurde auch beim Zebu‐Azaouak‐Rind ein Hämoglobin‐Polymorphismus beobachtet. Die Genfrequenzen liegen für das HbA bei 0.6774 und für das HbB bei 0.3226. Die Genfrequenz für HbB liegt damit weit über der HbB‐Genfrequenz der europäischen Rinderrassen. Summary Blood group studies on the zebu‐azaouak cattle of West Africa In cattle of the zebu‐azaouak breed the authors found within Group B a total of 33 blood group factors in combinations or phenogroups which constituted indivisible hereditary units. Only 10 of these phenogroups have been described so far in European cattle. The zebu‐azaouak breed can thus be clearly distinguished serologically from European breeds. As in mountain cattle and numerous other breeds there was polymorphism of the haemoglobin. The gene frequency for HbA is 0.6774 and for HbB it is 0.3226. The gene frequency for HbB is much above that in European cattle. Résumé Recherches sur les groupes sanguins de la race bovine zébu‐azaouak d'Afrique occidentale Au cours d'études concernant les groupes sanguins effectuées sur des vaches de race zébu‐azaouak on trouva dans le groupe sanguin B 33 combinaisons de facteurs ou phénogroupes formant une unité héréditaire fondamentale. Dix seulement de ces phénogroupes ont été décrits à ce jour chez des races bovines européennes. La race bovine zébu‐azaouak peut donc être distinguée nettement par les méthodes sérologiques des races bovines européennes. Comme chez les races bovines de montagne et de nombreuses autres races bovines, on trouva dans la race zébu‐azaouak un polymorphisme de l'hémoglobine. Les fréquences des gènes est pour l'HbA de 0.6774 et pour l'HbB de 0.3226. La fréquence des gènes pour HbB se trouve ainsi au dessus de la fréquence des gènes HbB des races européennes. Resumen Estudios sobre los grupos sanguíneus en el bóvido cebú‐azaouak del Africa Occidental Al estudiar la estructura de los grupos sanguíneus de bovinos cebü‐azaouak se comprobaron en el sistema B de los grupos sanguíneos 33 combinaciones de factores de grupos sanguíneos o fenogrupos como unidad hereditaria indivisible. Solo 10 de estos fenogrupos han sido descritos hasta la fecha en bóvidos de las razas culturales europeas. Por tanto, el bóvido cebú‐azaouak se puede delimitar serológicamente de forma nítida de las vacas europeas. Al igual que en las vacas de las razas serranas y otras muchas razas bovinas, también en el bóvido cebú‐azaouak se observó un polimorfismo hemoglobínico. Las frecuencias génicas se encuentran para la HbA en 0,6774 y para la HbB en 0,3226. Por tal razón, la frecuencia génica para la HbB se halla muy...
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