نتایج جستجو برای: small number of rams when mating
تعداد نتایج: 21262075 فیلتر نتایج به سال:
abstract: in the paper of black and scholes (1973) a closed form solution for the price of a european option is derived . as extension to the black and scholes model with constant volatility, option pricing model with time varying volatility have been suggested within the frame work of generalized autoregressive conditional heteroskedasticity (garch) . these processes can explain a number of em...
The results of laboratory studies freshly obtained and deep-frozen semen Texel breeding rams in the non-mating mating periods under different modes using 4, 6, 8 ejaculates per week are given. It has been proven that during period, when receiving four compared to 6 ejaculates, ejaculate volume was 11.3 22.6 % higher, respectively. sperm concentration it 5.1 12.2 %, activity higher by 1.7 3.2 th...
abstract type-ii fuzzy logic has shown its superiority over traditional fuzzy logic when dealing with uncertainty. type-ii fuzzy logic controllers are however newer and more promising approaches that have been recently applied to various fields due to their significant contribution especially when the noise (as an important instance of uncertainty) emerges. during the design of type- i fuz...
Two groups of 24 Hampshire and 26 Suffolk purebred ewes each were used to study effects of cohabitation with cyclic white-faced (WF) ewes on estrous activity in June. Ewes lambed in January, February and March and had been isolated from mature rams since the previous fall breeding. From June 1 to July 2, treated (T) ewes were exposed to vasectomized rams and to 65 WF ewes; control (C) ewes were...
the aim of this study was to determine the effect of ewe breed on the reaction time and semencharacteristics in the ram. for this purpose, from the native sheep breeds in iran, seven lory rams and fourewes (two lory and two ghezel breeds) were selected. seven rams were individually subjected to 4 weeklytrials in which one of the following two treatments was applied alternately. all of rams were...
The aim of the present study is to induce the sexual activity and to attain ejaculation during non-mating season in aboriginal ram breeds bred in Bulgaria. The possibility is discussed to use these rams with regard to the selection activity in effective sexual way. KEY WORD: Aborigine rams breeds, sexual activity and reflexes, semen
the purpose of this study is to investigate the relationships between teachers’ immediacy behaviors and iranian students’ willingness to talk in english classes. analysis of the results from willingness to talk scale represents a relatively high level of willingness to talk in english classrooms among iranian language learners. the total mean score of students’ willingness to talk was 66.3 ou...
The aim of this study was to determine the effect of ewe breed on the reaction time and semencharacteristics in the ram. For this purpose, from the native sheep breeds in Iran, seven Lory rams and fourewes (two Lory and two Ghezel breeds) were selected. Seven rams were individually subjected to 4 weeklytrials in which one of the following two treatments was applied alternately. All of rams were...
The purpose of this study was to determine whether the ejaculation rate (serving capacity) of sexually experienced rams could be estimated by selected measures of sexual libido when rams were exposed to estrous ewes under conditions that prevented copulations. Twenty-four crossbred rams selected for either high or low rates of copulation were exposed to two restrained estrous ewes under three t...
abstract: in this thesis, we focus to class of convex optimization problem whose objective function is given as a linear function and a convex function of a linear transformation of the decision variables and whose feasible region is a polytope. we show that there exists an optimal solution to this class of problems on a face of the constraint polytope of feasible region. based on this, we dev...
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