Relationship between genotype – technological environment and productive performances in Japanese quail (Coturnix coturnix)
Journal Title: Animal Biology & Animal Husbandry - International Journal of the Bioflux Society - Year 2011, Vol 3, Issue 2
Abstract
The continuous growth of living standards and consumption capacity of human society, require raising the share of animal production by: increasing the number of animals, improving theirproductive potential, improving technology and the effective operation of all forage resources. In achieving these goals and in particular the improvement of the productive potential of animals, a profound knowledge of the laws and phenomena that lead to the formation, development and evolution of animal body is imperative. In studying these issues we should consider the following premise: the animal body, the whole complex of qualities morpho-physiological posed at a time, is the result of the interaction between hereditary factors and environmental conditions in which the organism develops. To sense the presence of the genotype - environment interaction and its estimation of the production character in Japanese quail eggs (Coturnix coturnix) we conducted an experiment using a random extracted sample of the population, in which we observed egg production according to the duration of the photoperiod. The experiment was organized according to an experimental plan which included repeated measurement blocks. This has the advantage that it does not have to produce genetically uniform biological material, because the same individual is subject to different treatments during successive periods of time. This fact requires a decrease in the influence of genetic structures on the experimental results, so that differences arising between experimental variations are due to experimental treatments applied alone. To determine the genotype – environment interaction for the Japanese quail egg production character, the experimental data was statistically processed by testing the differences between the average values of two samples (Student) and using the analysis of variance (Fisher test). From direct analysis of raw data and average values of the egg production inJapanese quail, it can be said that the influence of light is very strong, and this is why the duration and intensity of artificial lighting are very important for directing technological factors of production and reproduction of this species. Experiments on this species confirm the existence of the genotype –environment interaction for the learning factor levels we have analyzed and considered.
Authors and Affiliations
Vasile Cighi, Teofil Oroian, Simona Paşcalău, Dorel Droncan, Bogdan Georgescu
Keywords
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