نتایج جستجو برای: values and economic
تعداد نتایج: 16886795 فیلتر نتایج به سال:
emphasis on milk yield (my) as well as milk yield persistency (myp) and calving interval (ci) is necessary to achieve more sustainable productionin dairy cattle. therefore the main objective of this study was to find an optimum regression model to estimate economic values for my, myp and ci.using a deterministic bio-economic model, seventyfiveproduction states differing mainly in my, mypand ciw...
the aim of this study has been to find answers for the following questions: 1. what is the effect of immediate correction on students pronunciation errors? 2. what would be the effect of teaching the more rgular patterns of english pronunciation? 3. is there any significant difference between the two methods of dealing with pronuciation errore, i. e., correction and the teaching of the regular ...
In this study, production, reproduction, management and economic parameters resulted from recording of 4 flocks with 1155 head of breeding ewes during annual cycle of production (August 2011 to August 2012) in extensive rearing system were used to determine the breeding objective and relative economic values for Dalagh sheep. To calculate the economic values for traits, the level of each trait ...
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