Four c 1 nesterasic phenotypes in the blo plasma of chickens were identified. The technique of horizontal electrophoresis on polyacrylamide gel was used. These phenotypes also found by Csuka and Petrovsky (1968) and Alvarez ...

The genetic determination of the coat horses is controlled by the interaction of the alleles of 5 loci ( C, B, A, E and D). They will determine the basic colour and other loci modify them. The knowledge of their effects ...

A population of the Malagueña goat breed, composed of 33 adult animaos (2 males and 31 females) and their 60 offspring, aged 2-2.5 months, was studied for the erythrocyte GSH level. Significant differences between adult ...

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On study the effect of different serum and hormonal supplements, when added to the maturation medium, on the in vitro maturation and subsequent fertilization and cleavage process of bovine oocytes. The oocyte maturation, ...

The comparative cytogenetic study between the Ovis aries and Capra hircus species shows the evolutionary relationship which exists between them. Thus, by means of a statistical study of the mesurement of their chromosomes, ...

In this paper an evaluation in dollars of the cost of the Andalusian rare indegenaus breeds conservation by several methods is presented. It constitutets a preliminary aproach to the development of conservation and ...

Using the genealogical data offered by the Stud-Book, we have used two probabilistic methods based on the basic concepts of the Genetics of Populations: The coefficient of inbreeding and the effective size of the population, ...

The Berrenda en Negro cattle breed has been used classically in the management of the fight bull and currently is found next their extinction. To contribute to the genetic conservation programs of this breed, we are ...